Search Term: " Casein "
Study: Taking protein supplements before going to the gym can leadto improved post-workout burn
May 03, 2019 04:08 PM
Recent research published in the Journal of the International Society of Sports Nutrition indicates that taking your protein supplement before working out can help increase your body’s fat oxidation. In a study of 11 college-aged males who took either whey or casein protein supplements prior to moderate exercise, it was found that both post-exercise fat oxidation and post-exercise energy consumption improved. Casein has more of an impact in this study than whey. This strongly suggests you should take your protein supplement before exercising.
"Published in the Journal of the International Society of Sports Nutrition, the study looked at the effect of taking protein supplements before exercise on fat oxidation and energy expenditure during and after a bout of moderate-intensity exercise. Previous research has shown that pre-exercise protein consumption may promote fat oxidation, at the same time, minimize protein degradation during exercise."
Read more: https://www.naturalnews.com/2019-03-26-protein-supplements-before-gym-improve-post-workout-burn.html
The 3 most exciting developments in sports nutrition right now, according to scientists
January 09, 2017 12:59 PM
When it comes to sports nutrition, there are three very exciting developments that have taken place in sports nutrition right now. The first development is nitrates, which help you to perform better and longer. The second development is collagen, which helps with tendon and ligament integrity as well as reducing the risk of injury. The last one is Casein protein which can allow for prolonged muscle building if taken before bed.
"Once they make the switch, they say, not only are their race results and game-day performances better, they report sustained energy, better moods, and clearer thinking."
Supremacy of Pea Protein Over The Other Protein Sources
March 01, 2012 08:53 PM
Supremacy of Pea Protein Over The Other Protein Sources
Protein is essential for your overall health and it is considered as the valuable source of energy. You can meet your daily protein requirements by eating various animal products such as meat and milk. It can also be obtained by consuming some dietary supplements. Pea protein is a new alternative protein powder, which is manufactured by using yellow peas. This is allergen free, easily absorbable and coming with great taste.
Pea protein is ideal for people who are intolerant to lactose. You can also use it if you cannot digest milk and meat properly. Due to the high digestion rate, this protein is used to complement non dairy foods, pastas, beverages, and a number of meal replacement shakes. You can also regulate your appetite effectively and can reduce weight significantly by using pea protein.
If you consume pea protein before and after your weight training session, you can achieve your body building goal very easily. This protein contains chain amino acids, which is helpful for restoring your muscle. It is also beneficial for treating some chronic diseases like kidney problems.
Benefits of Pea Protein over Other Protein Sources
Pea Protein Vs Whey Protein
Compared to other protein supplements, whey protein is very popular because of high biological values and chain amino acids. Your body can also absorb it very quickly. However, it is also very allergic due to the presence of lactose or Casein. Though whey protein is coming either without or very less content of these two products, bovine serum albumin, alpha-lactalbumin, and beta-lactoglobulin in whey protein are highly allergenic. The cholesterol content in whey protein is also very high.
Pea Protein Vs Soy Protein
Soy protein cannot be considered as an effective alternative and it also contains high allergens. If you eat more soy protein, chances of developing allergies will also be very high. If the phytates content is not removed, soy protein prevents the absorption of major minerals like calcium. If soy protein has not been fermented, it can contain potent enzyme inhibitors, which leads to the blockage of the activities of trypsin and the other enzymes needed for the digestion of protein. This leads to the formation of gas and the promotion of pathological conditions in pancreas. Once, soy oil industry considered soy protein as a waste product and it was used as cattle feed.
Pea Protein Vs Milk Protein
Milk is the primary source of protein but the milk protein supplements create problems such as diarrhea, stomach cramps, gas, etc. You may also develop lactose intolerance due to the consumption of milk protein. A large number of food allergies, such as fatigue, constipation, diarrhea, etc, are caused by milk products. It can also cause asthma and sinus infections.
Pea is a member of plant family and there is no need of using complicated methods for extracting protein. These are also grown in environmentally friendly way. The defenses of your body can be broken down due to exercise, aging and stress. When you become old, you will be more vulnerable to diseases, infections, oxidative damages, and tissue degeneration. These problems can be solved by using pea protein powder.
Dangers Of Over The Counter Drugs
October 16, 2008 03:42 PM
Parents have recently been hit with shocking information about the potential dangers to their children. First it was lead contamination that came from toys that were manufactured by some of our most trusted companies. Next, it was super antibiotic resistant bugs that may lurk in day care centers and schools. The latest information is of greatest concern. Every study performed in the recent years has found that children’s cough and cold remedies are ineffective and may, in fact, be potentially dangerous. The American Academy of Pediatrics recommended against the use of multi-symptom, over-the-counter, cold medicines in children under the age of three unless the parents are advised by a physician.
Many parents have depended on these medicines for years to help with runny noses, coughs, and sleep disruptions. However, our kids are not the first generation to suffer from frequent respiratory troubles. Herbal and dietary remedies have been the first line of defense for centuries, with Elderberry being rich in flavonoids, essential oils, vitamin C and organic acids. It reduces mucous secretions, helps ease breathing, and soothes an irritated nose and throat.
If your child frequently deals with a runny nose, earache, and sinus infection, he or she may have hidden food intolerances. One doctor states that there are various ways that you can recognize hidden childhood allergies. A classic symptom is the “allergic salute”, which the child demonstrates when he is constantly rubbing his or her hand across the end of a runny nose.
Food allergies are difficult to determine with standard allergy testing, but by avoiding common allergic provoking foods like dairy, wheat, corn, and tree nuts, often brings relief to the child. Changing the family diet is the best way to eliminate offending foods. Replace all forms of sugar and other refined carbohydrates, as they slow down bowel transit time and increase exposure to toxic bowel contents. Natural sweeteners, which can be found in most health food stores, can be used instead. Since dairy products top the list of provoking foods, they should be replaced as much as possible with other beverages. Inspect labels carefully to determine if they contain Casein, which is a milk protein that often causes problems. A liquid calcium supplement is a good idea to give your children if they are not receiving dairy products.
Allergic children are often prone to digestive problems, which is a condition referred to as intestinal dysbiosis. Antibiotic use disturbs the microflora in the gut by killing helpful bacteria. Psychological stress can also impact microflora, which poses the question of whether or not stress is having a negative impact on our children’s health. Studies in which some children were placed in a stress relieving program showed that treated groups of children increased their levels of secretary IgA, which gives them a greater ability to resist colds.
Allergic children also have disturbed bowel function, making them constipated, frequently pass gas, be bloated, and have foul smelling hard stools. A low fiber diet is one cause of constipation, but an imbalance in microflora in the gut is another reason, which causes toxins to enter circulation. Supplementing with Bifidobacteria and other helpful probiotics can restore normal gut function, alleviate allergic symptoms, restore immune competence, and reduce allied bowel problems. Supplementing with fiber can also support proper elimination of toxins in children as well as adults. Acidophilus, fiber, and herbal cold aids can be found at your local health food store.
Which Protein Is Best For You?
January 18, 2008 11:16 AM
If you are physically active and taking supplements but still cannot seem to get the energy back in your body and brain, then it’s time to look at how much and what kind of protein you are getting. Even though dieters have been using high-protein diets for years, many are unaware of how much protein they actually need and how critical it is to their overall health. Low-protein diets can be lacking greatly in a lot of essential nutrients such as zinc, iron, manganese, chromium, copper, and others. This deficiency can cause illness and fatigue. Protein deficiency leads to difficult recovery from exercise, feeling tired, frequent colds, poor hair or nails, and a cessation in menstrual period for women, which may sound pleasant but is potentially dangerous. People of all ages are not aware of how much their protein needs change as they increase exercise. As your activity increases, so does your protein needs.
Protein is important in your body because every single cell in the body is made up of proteins. Protein is also essential for muscle building, producing red blood cells, the production of various enzymes and hormones, and good hair, nails, and skin. Our immune systems are almost all protein based, so providing our body with protein means that we can fight colds and other infections better. Proteins are also needed in our body to repair muscle damage that occurs during mild exercise. Protein is made from a chain of amino acids and our body cannot make some of these amino acids, which means that they need to be found in our diet. There are eight amino acids that our body cannot make and must be found in our diet every day. These include: isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. Although it is nice to know which amino acids are essential, it is even more important to know where you can find these amino acids because your muscles and body need them on a daily basis.
Since proteins are constantly being broken down, it is necessary to get some every day. It is suggested that women aged 19 to 70 need 46 grams of protein per day, while men of the same age need 56 grams. Now that you know that protein is essential to your life, what kind of protein is actually needed? Even though protein can be found in a good diet by simply eating meat, nuts, eggs, and other foods, many of us with busy lives need a quick and convenient source of protein. At a health food store, your choices are soy, Casein, whey, and egg. Although the classic protein source is whey protein, the problem is that even though it has a high amount of useable amino acids, some people don’t like it or have a hard time taking it. Other proteins like soy and Casein don’t have the complete amino acid content that your body is looking for.
With all the different forms of protein available one might wonder which is best? Egg white is the perfect protein source. Egg whites contain more than half the protein of an egg and are also rich in chlorine, niacin, potassium, magnesium, riboflavin, selenium, vitamin K, and sulfur. Additionally, egg whites have a high amount of protein but exclude the cholesterol and sodium found in the yolk. Egg white protein is considered almost perfect because human requirements for amino acids and the amino acids contained in eggs are almost identical. Eggs are also one of the well-tolerated proteins, as over 90 percent of the protein of eggs is digested into the individual amino acids that your body needs. Egg white protein is one of the few products on the market that taste good without the added artificial flavors, colors, or additives.
Protein And Its Role In Bodily Functions
November 09, 2007 05:00 PM
Protein is an essential organic compound composed of 20 or more amino acids which are joined by peptide bonds. Proteins serve as structural material such as connective tissue, and hair (i.e. collagen and keratin) can function as enzymes and hormones, as transporters of essential substances such as oxygen, antibodies, or regulators of gene expression. The importance of protein cannot be overstated in its effects on overall health regardless of age. Dieters using the low-protein diet can be seriously lacking in many essential nutrients including minerals such as zinc, iron, manganese, chromium, copper, etc. These deficiencies can lead to chronic illness, fatigue and make mental function more difficult.
In order to fight sickness and disease, our immune systems need to be in optimum performance. Something you may not have realized but our immune system are almost all protein based. Providing the body with the correct proteins is like providing the proper building blocks of the immune system and can help to fight the common cold and infections better. Proteins are also used to repair muscles during exercise.
There are eight essential amino acids which the body cannot manufacture and which we must derived from our diet each day. The essential amino acids are (i) isoleucine, (ii) leucine, (iii) lysine, (iv) methionine, (v) phenylalanine, (vi) theronine, (vii) tryptophan, and (viii) valine. With this list of proteins it is possible to determine where we can find these amino acids and incorporate them into our diet. We need protein in our diet on a daily basis, especially for muscle function which requires a particular mix of amino acids which are not found in many food sources. For example, to increase muscle mass, you need glutamine, carnitine, taurine, and arginine amino acids.
Now that we know we need protein daily in our diet and that protein is essential to life. So the next question you may have is what kind of proteins are the best? Quality proteins found in your local grocery store can be found in meat, nuts, eggs, and other foods. If you turn to your local health food store, look at soy, Casein, whey and egg proteins. The type of protein you take will depend upon what you are capable of eating, i.e. taste. Some people have trouble eating whey protein, while others cannot pallet egg protein.
The best protein found in nature however is derived from egg whites. Egg proteins are not only complete in its supply of what the body needs, the egg is rich in chlorine, niacin, potassium, magnesium, riboflavin, selenium, vitamin K, sulphur, and omega-3. An added bonus to eating egg whites is the lack of cholesterol and sodium in the yoke. Eggs are also one of the most tolerable proteins in the human body where over 90 percent of the proteins derived from eggs is digested into the individual amino acids our bodies need. By eating egg derived protein you are essentially supplying the body with the raw materials it needs for proper function. So, if you have been troubled by fatigue, poor hair and nails the answer may be to increase your protein intake or try an all natural egg white protein for three to four weeks and see what a difference it will make in your health and appearance
Digestive Enzymes To Improve Wellness For Kids
November 04, 2007 03:19 PM
It is very safe to say that most people experience some type of digestive difficulty, as digestive disturbances are very common, especially for those who do not practice healthy eating. The numerous advertisements for antacids and acid blockers clearly identify the degree of this problem. But, what about our children? It has been proven that kids are suffering from digestive problems more than ever before due to unhealthy eating habits and nutritionally deficient diets that are high in saturated fats and processed sugars and carbohydrates. The food that is served in school cafeterias often contains too much fried food and not enough fresh produce. Additionally, parents have to constantly fight a losing battle against advertisements for junk food. Many children follow in the footsteps of their parents, picking up the same bad eating habits, which frequently leads to poor digestion and health problems. Overeating, eating too fast, or not chewing food well hinders digestive capability leading to symptoms such as gas, heartburn, bloating, burping, bad breath, diarrhea, constipation, and general discomfort or fatigue after meals. Although these symptoms are common, they should not be considered normal as they are distress signals sent by our body telling us that the digestive process is not going smoothly and we are not receiving the full nutritional benefit of the food we eat. If digestion is not efficient or complete, inflammation may develop, which causes “leaky gut syndrome,” leading to various allergic reactions.
The brain is especially susceptible to protein fragments, which come from the incomplete digestion of grain gluten and dairy Casein. Researchers believe that these fragments, which are called exorphins, are the main factors in the cognitive symptoms and abnormal behaviors of those kids with ADHD and autism. A recent study on thirty-six autistic children found that a majority of these children had digestive disorders including esophageal reflux and inflammation, gastritis, duodenitis and low carbohydrate digestive enzyme levels. Some doctors believe that seventy-five percent of the children that they treat have major deficiencies of pancreatic enzymes.
Enzymes are often called the spark of life or the missing link in nutrition because no plant or animal can exist without them. Digestive enzymes are protein catalysts which break down food so the body can absorb nutrients. Therefore, enzyme supplementation can be extremely helpful, especially when it is done in conjunction with dietary changes. And, yes, kids can take enzymes supplements, too. In children with digestive symptoms, enzyme supplements help to establish proper weight because better assimilation of nutrients helps growth and repair while still supporting a healthy metabolism. Digestive enzymes come in mild-potency enzyme formula which covers all of the food groups for children. Children should take a powder which is safest so there are no caps to swallow and chock on and powdered enzymes allow children to get their digestive enzymes through one scoop which can be added to your child’s favorite juice. Some formulas add potassium carbonate, this form of potassium adds a fun fizz to whatever beverage is used, but is not recommended in milk or water. Look for a powdered supplement that is sweetened with xylitol, a safe and natural sugar substitute which supports tooth and gum health. Since more children than ever suffer from the consequences of incomplete digestion, digestive enzymes are a safe and effective way to support digestion and assimilation of important nutrients into your child’s diet in an enjoyable way.
Exceptional Ingredients For Exceptional Performance
June 02, 2007 02:52 PM
Anaerobic exercises, such as bodybuilding and strength training, as well as endurance based aerobic activities, such as marathon running and bicycling, are notorious for depleting the body’s reserves of glycogen, protein, electrolyte minerals, water, and other vital constituents. And as simple logic will tell us, the harder one trains, the more they will lose in the process. Failure to properly replenish these nutrients immediately after training can result in fatigue, delayed recovery, accelerated lactic acid levels, mental sluggishness, and intense soreness. According to research, immediate replacement of electrolyte minerals and carbohydrates, along with easily assimilated protein is an effective way to maximize amino acid utilization, when preventing the onset of fatigue. NOW Electro Pro Energy Drink contains all the elements to ensure proper post-workout recovery. By combining a perfectly balanced mix of electrolytes, protein and simple and complex carbohydrates, Electro Pro serves as an ideal supplement for recovering after intense training and exercise.*
This patented Casein hydrolysate was scientifically formulated to provide athletes with a better source of protein for faster recovery, more efficient glycogen usage, better insulin response, and less fatigue. PeptoPro helps stimulate the body’s own natural production of insulin to help increase glucose uptake to hard working muscle cells. Its high dipeptide and tripeptide profile promotes fast absorption, and has been shown in human trials to accelerate muscle recovery. PeptoPro contains all 20 amino acids in the natural ratio of Casein, a key factor in preventing muscle fatigue and muscle tissue damage because it is a predigested protein, PeptoPro is ideal for taking before and after workouts.
During intense exercise, the body quickly exhausts its reserve of electrolytes. If these aren’t replenished promptly, the body will fatigue at a very fast rate, and may dehydrate. Electro Pro contains calcium, magnesium, sodium and potassium to help fuel even the most intense training session.
Carbohydrates are vital when it comes to providing the glycogen that is needed to fuel and refuel today’s athlete. Electro Pro contains a unique blend of dextrose, fructose and rice Maltodextrin to ensure that the body has a generous fuel source. Every serving contains 32 grams of quality carbohydrates.
Electrolyte Energy Formula
*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
Perplexed about Protein? immunoglobulins to boost the immune system.
April 29, 2006 01:58 PM
The Wellness Revolution
Perplexed about Protein?
As protein and whey powders have advanced in popularity, the confusion about them has grown. In particular, protein processing technology has advanced by leaps and bounds; consumers are being presented with protein claims and counter-claims that are highly contradictory.
The confusion is part of a rapid growth. Little Miss Muffet’s quiet dish of curds and whey has expanded from a minor sideline aid for weight lifters, with sales increases around to percent a year, into an explosive $1 billion a year industry, with some companies announcing sales growth of 110 percent in just the last year.
The increase in market is from whey’s expanding appeal. As new technology has made whey’s nutritive value beneficial to a wide range of consumers, more people are using whey, and whey is being added to more products. The problem is, those advanced nutritive qualities are not included in all whey products. The fantastic immune benefits, for example, apply to only the top tier of whey products.
The standard of protein quality—the ability to provide indispensable amino acids—is judged on the basis of digestibility, nutrients, and amino acid composition. Whey has historically been acknowledged as on of the best sources of high quality protein.
With the increasing popularity of whey, attention on new processing methods has raised the bar on quality, and new products have greatly expanded nutritional values. What may have been an acceptable high-quality whey protein a few years ago, no longer makes the grade. Tony Lucchesi, Natural Sales Trainer at Source Naturals says, “The different processing methods have changed the entire protein market.”
He explains, “In separating Casein from whey, (a process used to make cheese), most processing methods use heat, chemical modification, or pH adjustments. These all damage the native protein structure. The result is little or no biological activity in the whey product. All the low temperature drying and micro-filtration won’t help if the raw material is denatured before a protein is dried and brought to market.”
Damaged protein may have been acceptable a few years ago, but it isn’t now. Lucchesi continues, “Animal experiments have shown that polypeptides—whole, non-denatured proteins—have greater nutritional value than protein isolates.”
Protein isolates are what is left after the pasteurization process. The protein has traditionally been “Cross cooked” out of its normal balance. “What you have left are incomplete bits and pieces of whole protein,” he says. These protein bits have only partial nutrients.
The latest introduction to the protein category are concentrates, which are intact, biologically-active whole proteins. The entire difference is in the processing; high heat, acids, and traditional methods of separating the Caseins from the whey are no longer used. The new processing preserves the nutrients of the protein. This is the method that is the basis for a new Source Naturals whey product, True Whey.
Lucchesi says, “TRUE WHEY is different in that it was designed to provide nutritional support for enhanced immune function. The entire process was designed for nutritive value. The preservation of these nutrients—lactoferrin, glutamine, immunoglobulins—give TRUE WHEY a huge benefit to athletes, children, and anyone interested in boosting their immune system.”
Per serving, TRUE WHEY offers 8 grams of un-denatured protein that includes 900 mg immunoglobulins and 190mg of lactoferrin. Its vanilla flavoring has gotten very high reviews, and it has a two-year shelf life. It appears that the bar has truly been raised in the whey protein category!
New Frontiers in Enzyme Supplementation
February 16, 2006 04:17 PM
New Frontiers in Enzyme Supplementation
By Nick Rana, CN, NOW Quality Assurance
Serrazimes® is a proteolytic (protein digesting) enzyme system containing protease that is derived from edible non-genetically engineered fungi (Aspergillus oryzae and Aspergillus melleus), that is designed as an alternative for Serrapeptidase (also known as serratio-peptidase and serrapeptase) in dietary supplements used for cardiovascular, anti-inflammatory, respiratory, or immune support.
Serrapeptidase was initially isolated from Serratia marcescens, a potentially pathogenic bacteria found in the gut of the Japanese silkworm. Recognized as a pharmacological agent, Serrapeptidase has wide clinical use in Asia and Europe for the management of assorted inflammatory processes (Rothschild, 1991). In recent years, recognition of the efficacy of the Japanese product has lead to growing interest in the US dietary supplement market.
The product’s efficacy and availability over the internet has fueled its popularity in the US dietary supplement industry, where it is used for anti-inflammatory support, cardiovascular support, respiratory support, and as an adjunct to antibiotic therapy. Recognizing the potential for a "Serrapeptidase-type” enzyme in the U.S. dietary supplement market, the National Enzyme Company developed a protease system that has the same in vitro (lab test) activity as Serrapeptidase, but that is from organisms that have a long history of safe use in dietary supplements. Serrazimes® is the product resulting from this search.
Since the 1960’s, plant and microbial protease enzymes have been studied for their role in the management of inflammation and inflammatory processes. In both animal and human trials, proteolytic enzymes, from a variety of sources, have repeatedly been shown to significantly reduce inflammation resulting from sickness or injury (Ryan, 1967)(Smyth et al, 1967)(Shaw, 1969)(Kumakura et al, 1988)(Lomax, 1999). The earlier research on the anti-inflammatory actions of proteases pointed entirely to their antithrombic and fibrinolytic aspects to explain this phenomenon. However, studies by Parmely (Infect and Immun Sept 1990) and others indicate that, in addition to degrading fibrin, microbial proteases may actually inactivate pro-inflammatory cytokines and to interrupt inflammatory responses.
Persons taking blood thinning or antibiotic medications and those with serious health disorders should consult their medical practitioner prior to taking Serrazimes®. As is the case with most supplements, please consult your doctor about the use of Serrazimes® during pregnancy and lactation.
The Product Development Team at NOW Foods is constantly researching new products like Serrazimes® to provide our customers with the tools that empower them to live healthier lives. Look also for our new unique digestive enzyme formulations from plant sources - backed by laboratory studies - to be introduced in March of 2006.
Serrapeptidase is a selective alkaline metalloprotease enzyme, meaning that it works to activate specific biological systems of mammals and directly degrades or inhibits IgG and IgA immune factors as well as the regulatory proteins á-2-macroglobulin, á-2-antiplasmin, and antithrombin III (Molla et al, 1989)(Maeda and Molla, 1989).
While originally isolated from Serratia marcescens, a bacteria found in the gut of the Japanese silk worm, Serrapeptidase activity is also found in fermentation extracts of Serratia E-15, Aspergillus oryzae, and Aspergillus melleus. (Salamone and Wodzinski, 1997).
The Serrapeptidase activity of this high potency proteolytic (protein digesting) enzyme is determined using a spectrophotometric assay testing procedure that measures the enzyme’s ability to hydrolyze (digest) a standard Casein protein substrate. Laboratory analyses have established that Serrazimes® has a 1:1 enzymatic equivalent of Serrapeptidase activity guaranteed to provide 600,000 specialized proteolytic Units per gram, or 20,000 units per capsule.
Kids will Absolutely Love DinoEFA ...
September 10, 2005 12:33 PM
Have a smart Year with Kal Dinosaurs Supplements for Kids
June 11, 2005 05:04 PM
Power Protein by Joanne Gallo Energy Times, August 4, 1999
Chances are, if you've been trying to lose weight, build muscle, or increase your energy levels, then you've been hearing about protein. This essential nutrient has stolen the spotlight of the health industry as the alleged key to vitality and a solid physique.
With books like Protein Power (Bantam) and Dr. Atkins' New Diet Revolution (Avon) firmly implanted on The New York Times bestseller list, and protein bars and shakes growing in popularity, more people than ever are seeking to tap into the power of protein.
But before you go on an all-out protein-blitz, how can you decide what's best for you?
The Purpose of Protein
No doubt about it, protein performs a variety of roles. First and foremost, it is used to manufacture and repair all of the body's cells and tissues, and forms muscles, skin, bones and hair. Protein makes up the connective tissue that forms the matrix of bones; keratin is a type of protein used to make hair and nails.
It is essential to all metabolic processes; digestive enzymes and metabolism-regulating hormones (such as insulin, which influences blood sugar levels) are all made of protein. This nutrient also intricately takes part in transport functions: Without sufficient protein the body cannot produce adequate hemoglobin, which carries nutrients through the blood. Lipo-proteins are fat-carrying proteins which transport cholesterol through the bloodstream.
Protein helps regulate fluid and electrolyte balance, maintaining proper blood volume. Immunoglobulins and antibodies that ward off diseases are also comprised of protein.
Any protein that you eat that is not utilized for these purposes is stored as fat, although some may be broken down, converted to glucose and burned for energy. This can occur during intensive workouts, or when the body runs out of carbohydrates from the diet or glycogen from its muscle and liver stores.
"Even though the body can depend on the fat it has stored, it still uses muscle protein, unless it is fed protein as food," explain Daniel Gastelu, MS, MFS, and Fred Hatfield, PhD, in their book Dynamic Nutrition for Maximum Performance (Avery). "When dietary circumstances cause the body to use amino acids as a source of energy, it cannot also use these amino acids for building muscle tissue or for performing their other metabolic functions."
One can see why it is so important to eat a sufficient amount of protein daily in food, shakes or bars. Without it, bone tends to break down, the immune system can become impaired, and muscle strength drops as the body uses up muscle protein for energy.
Proteins are built of chains of amino acids, and 20 different kinds of these building blocks are necessary for protein synthesis within the body. Eleven of them can be manufactured by the body through a process called de novo synthesis; these are referred to as non-essential amino acids. The other nine, which must be obtained from the diet, are known as essential amino acids. (Although some amino acids are called "non-essential," in actuality they are vital: The body needs all 20 amino acids to function properly.)
Some of the more familiar non-essential amino acids include: n Carnitine helps remove fat from the bloodstream n Arginine helps burn sugar Essential amino acids include: n L-tryptophan, a precursor of the neurotransmitter serotonin, helps create calm moods and sleep patterns n L-lysine, required for the metabolism of fats n L-methionine a component of SAM-e (a supplement intended to relieve depression and arthritis, see p. 45)
The body forms and destroys protein from amino acids in a constant cycle of synthesis and degradation. You must consume protein regularly to replace the lost amino acids that are oxidized when protein is broken down and used for fuel. The amount of amino acids lost each day depends on what you eat and how much exercise you do.
Athletes vs. Weekend Warriors
Protein intake in the general population is still adequate, notes Gail Butterfield, PhD, RD, director of Sports Nutrition at Stanford University Medical School. "But we're learning that what is true for the general population may not be true for the athletic population," she says. "With heavy training there is greater protein degradation and you need to increase your intake. Thus, protein requirements are higher for athletes than regular people."
Also, if you diet or restrict your eating in any way, you may also not be getting enough protein.
Certainly, if you work out, eating protein is important. Providing four calories of energy per gram, protein keeps blood sugar steady during exercise. After exercise, it helps replenish and maintain stores of glycogen (stored muscle fuel) and decreases the loss of amino acids, as recent research has shown (J Appl Physiol 81 (5), Nov. 1996: 2095-2104). Lab studies in animals show that protein consumed after you run, lift weights, bike, etc..., helps stimulate muscle growth (Jrnl of Nut 127 , June 1997: 1156-1159)
High-protein diets are frequently touted to promote weight loss and increased energy. One of the most influential: the so-called 40-30-30 formula, developed by Barry Sears in his book The Zone: A Dietary Roadmap (HarperCollins), which describes a diet whose calories are 40% carbohydrates, 30% protein and 30% fat. The rationale: when you eat too many carbohydrates, your body uses these starches for energy instead of burning body fat. A high protein diet is supposed to keep your blood sugar balanced and stimulate hormones that burn body fat instead of carbohydrates for energy.
Other fitness experts such as Sherri Kwasnicki, IDEA International Personal Trainer of the Year of 1998, say that while protein is a necessary component of any diet, extreme high-protein plans aren't necessary for recreational fitness buffs. However, she notes that maintaining muscle mass is the key to aging gracefully, and getting enough protein is critical for that.
Many people today won't eat meat and dairy for ethical reasons, or to avoid the antibiotics and other chemicals in the raising of poultry and cattle. But that doesn't have to prohibit adequate protein intake. All soybean products, including tofu and soymilk, provide complete proteins, which supply ample quantities of all the essential amino acids.
In the past vegetarians were told to combine particular foods to make sure they consumed all the essential amino acids at each meal. (For example, beans with either brown rice, corn, nuts, seeds or wheat forms "complete" protein.) Today, diet experts aren't so picky. Eating a variety of plant-based foods throughout the day is just as effective as combining them at one meal.
Vegans who avoid all animal products should eat two servings at sometime during the day of plant-based protein sources, such as tofu, soy products, legumes, seeds and nuts.
The newest sources of protein are bars and shakes, which are growing steadily in popularity. Protein bars now constitute about 12% of the so-called energy bar market, with sales increasing about 38% per year. These bars generally provide at least 20 grams of protein, including soy and whey protein and calcium Caseinate (milk protein). The benefits: bars supply protein along with carbohydrates for energy; protein powders, on the other hand, provide quickly digested, easily absorbed amino acids.
Edmund Burke, PhD, author of Optimal Muscle Recovery (Avery), suggests "If you need extra protein, you may benefit from the convenience of a mixed carbohydrate-protein supplement... choose a supplement that's healthy and low in fat."
Amino acid supplements are also growing in popularity, reported to build muscle and burn fat, or improve mood by boosting brain neurotransmitters. The amino acids glutamine, phenylalanine, tyrosine and 5-HTP (a form of tryptophan) are all used to boost spirits and enhance brain function.
And if you still ponder the merits of those high protein diets, do keep in mind that protein may be better at controlling hunger than carbohydrates or fat since it steadies blood sugar, so it may help you stick to a reduced-calorie plan. But excess protein can't be stored as protein in the body: It is either burned for energy or converted to fat. And carbs are still the body's top energy source, so forgoing too many can leave you tired and sluggish.
Still, with so many vital functions-and a variety of sources to choose from-you can't afford to not explore the benefits of protein.
Policosanol and cholesterol control ...
May 17, 2005 06:25 PM
In addition, after 30 days of therapy, 20 and 40 mg/day policosanol significantly ( P < 0.01) reduced low-density lipoprotein– cholesterol (15.9 and 17.0%, respectively) and total cholesterol (12.4 and 12.3%, respectively; P < 0.05), yet increased high-density lipoprotein–cholesterol values by 5% in both groups ( P < 0.05).
Policosanol is a mixture of higher aliphatic primary alcohols purified from sugar cane ( Saccharum officinarum L) 4,5 wax, the main component of which is octacosanol, followed by triacontanol and hexacosanol; other alcohols (tetracosanol, heptacosanol, nonacosanol, dotriacontanol and tetratriacontanol) are minor components. The cholesterol-lowering effects of policosanol have been proven in healthy volunteers, 6,7 patients with type II hypercholesterolaemia 8–25 and in dyslipidaemia due to type II diabetes mellitus. 26,27
The hypocholesterolaemic effect of policosanol is associated with inhibition of cholesterol biosynthesis at a step located between acetate consumption and mevalonate production, although inhibition of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase has been discarded. 28–30 Policosanol also increases low-density lipoprotein (LDL) receptor-dependent processing in fibroblast cultures, 28 as well as the clearance of [ 125 I]-labelled LDL–cholesterol (LDL-C) administered to rabbits with hypercholesterolaemia induced by a cholesterol-free Casein-rich diet. 29
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