Cardiovascular Support for Dogs & Cats Powder - 4.5oz

NOW® Pets Cardiovascular Support for Dogs and Cats Powder (4.5 oz / 127g) – Complete Heart & Circulation Care

Core Takeaway: NOW® Pets Cardiovascular Support for Dogs and Cats Powder (SKU: N4306 | UPC: 733739043061) is a veterinarian-formulated daily nutritional powder designed to nourish your pet’s heart muscle, support healthy blood flow, and boost cellular energy. Formulated by renowned holistic veterinarian Dr. Barbara Royal, DVM, CVA (founder of The Royal Treatment Veterinary Center), this easy-to-mix powder combines pharmaceutical-grade amino acids (L-Carnitine and Taurine), cellular cofactors (Coenzyme Q10 and Magnesium Glycinate), and time-tested heart botanicals (Hawthorn and Organic Dandelion Root) in a savory, USA-sourced chicken bone broth base that even picky dogs and cats eagerly eat.

Just like humans, dogs and cats rely on a strong, steady heartbeat to deliver oxygen and nutrients to every organ in their bodies. As pets age—or when specific breeds face higher cardiovascular demands or dietary amino acid gaps from grain-free or boutique kibble—the heart muscle works harder to maintain normal circulation. Common canine and feline heart concerns include weakened heart muscle contractions (such as dilated cardiomyopathy, or DCM), age-related valve changes, and irregular heart rhythms. Giving your companion targeted daily heart nutrition helps maintain normal blood pressure, steady heart rhythm, and everyday energy for walks and play.

Key Benefits & Why Pet Parents Choose This Formula

• ✓ Dual Amino Acid Heart Muscle Fuel: Delivers 200 mg of L-Carnitine and 200 mg of Taurine per 1/2 teaspoon to help heart cells turn fat into energy and maintain strong, steady contractions.
• ✓ Cellular Energy & Antioxidant Protection: Provides 25 mg of CoQ10 (Coenzyme Q10) and Vitamin E to recharge the tiny power plants (mitochondria) inside heart tissue and protect cells from everyday free radical wear and tear.
• ✓ Gentle Herbal Circulation & Fluid Support: Features standardized Hawthorn Leaf/Flower Extract and Organic Dandelion Root to promote healthy blood vessel relaxation and normal fluid balance without depleting vital electrolytes.
• ✓ High Palatability for Dogs & Cats (No Pill Battles): Flavored naturally with steroid-free, growth-hormone-free USA chicken bone broth powder—simply sprinkle over wet or dry food without forcing large tablets down your pet’s throat.
• ✓ NASC Quality Seal Certified: Independently audited by the National Animal Supplement Council (NASC) and lab-tested by NOW® Foods for heavy metals, microbes, and label accuracy.

How It Works: Simple Layman’s Guide to Pet Heart Science & Clinical Citations

Your pet’s heart beats over 100,000 times every single day without taking a break. Because it never rests, the heart muscle requires more continuous cellular energy than any other organ in a dog or cat’s body. Instead of relying on stimulants, NOW® Pets Cardiovascular Support Powder works by supplying the exact biological building blocks the heart needs to power itself, pump efficiently, and keep blood vessels relaxed:

• ✓ Taurine (200 mg) – The Heart’s Master Amino Acid: Taurine is the most abundant amino acid inside heart muscle tissue. In plain terms, taurine controls how calcium flows in and out of heart cells, which tells the heart muscle when to squeeze and when to relax. Cats cannot make their own taurine at all, making it an essential daily nutrient for feline survival. While dogs can make some taurine from meat proteins, certain breeds (like Golden Retrievers, Cocker Spaniels, Boxers, and Dobermans) or dogs eating legume-heavy, grain-free diets often fail to maintain enough taurine for healthy heart pumping. Landmark veterinary studies confirm that restoring taurine levels directly supports normal heart chamber size and pumping strength.
• ✓ L-Carnitine (200 mg) – The Fuel Delivery Truck: A healthy dog or cat heart gets up to 70% of its daily energy by burning fatty acids. However, fats cannot get inside the cell’s power plant (the mitochondria) on their own. L-Carnitine acts like a microscopic shuttle bus that picks up fatty acids and carries them directly into the mitochondria to be burned for energy. Without enough L-Carnitine, the heart muscle runs low on fuel and grows tired.
• ✓ Coenzyme Q10 / CoQ10 (25 mg) – The Spark Plug for Heart Energy: Once L-Carnitine delivers fuel into the heart cell, CoQ10 acts as the spark plug that turns that fuel into usable cellular energy (called ATP). Veterinary research shows that dogs dealing with age-related heart strain have significantly lower levels of CoQ10 in their heart muscle. Supplementing with CoQ10 helps recharge tired heart cells and acts as a strong shield against oxidative stress.
• ✓ Hawthorn Leaf & Flower Extract (50 mg) – Gentle Blood Flow Support: Hawthorn (Crataegus) is a traditional heart-supporting herb rich in natural plant antioxidants called oligomeric procyanidins (OPCs) and flavonoids. In simple terms, Hawthorn helps blood vessels gently relax and widen so the heart does not have to push against stiff resistance, while encouraging a steady, forceful heartbeat.
• ✓ Organic Dandelion Root (25 mg), Magnesium Glycinate (4 mg) & Vitamin E (6 mg): Dandelion root gently supports healthy kidney flushing and normal fluid balance while naturally supplying potassium. Magnesium Glycinate (a gentle, stomach-friendly mineral form) helps keep the heart’s electrical rhythm steady, and Vitamin E protects delicate cell membranes from free radical damage.

Peer-Reviewed Veterinary & Scientific References

1. Feline Taurine & Myocardial Function: Pion, P. D., Kittleson, M. D., Rogers, Q. R., & Morris, J. G. (1987). Myocardial failure in cats associated with low plasma taurine: a reversible cardiomyopathy. Science, 237(4816), 764–768. (Demonstrated that dietary taurine directly maintains feline heart muscle contractility and reverses taurine-depleted myocardial weakness.)
2. Canine Diet-Associated Taurine & Heart Health: Kaplan, J. L., Stern, J. A., Fascetti, A. J., Larsen, J. A., et al. (2018). Taurine deficiency and dilated cardiomyopathy in golden retrievers fed commercial diets. PLoS ONE, 13(12), e0209112. (Confirmed that nutritional taurine supplementation and dietary optimization significantly improved echocardiographic heart parameters in dogs.)
3. Canine Myocardial L-Carnitine Transport: Keene, B. W., Panciera, D. P., Atkins, C. E., Regitz, V., Schmidt, M. J., & Shug, A. L. (1991). Myocardial L-carnitine deficiency in a family of dogs with dilated cardiomyopathy. Journal of the American Veterinary Medical Association (JAVMA), 198(4), 647–650. (Established the critical role of L-carnitine in canine heart muscle fatty acid energy metabolism.)
4. Coenzyme Q10 in Canine Cardiac Tissue: Christiansen, L. B., Reimann, M. J., Schou-Pedersen, A. M. V., Larsen, S., Lykkesfeldt, J., & Olsen, L. H. (2021). Depleted Myocardial Coenzyme Q10 in Cavalier King Charles Spaniels with Congestive Heart Failure Due to Myxomatous Mitral Valve Disease. Antioxidants, 10(2), 161. (Showed that canine heart strain depletes cellular CoQ10 reserves, highlighting the importance of mitochondrial antioxidant support.)
5. Hawthorn Extract & Cardiac Output: Pittler, M. H., Guo, R., & Ernst, E. (2008). Hawthorn extract for treating chronic heart failure. Cochrane Database of Systematic Reviews, (1), CD005312. (Systematic review demonstrating that standardized hawthorn leaf and flower extracts support workload tolerance and healthy cardiac function.)
6. Dandelion Extract & Normal Fluid Balance: Clare, B. A., Conroy, R. S., & Spelman, K. (2009). The diuretic effect in human subjects of an extract of Taraxacum officinale folium over a single day. Journal of Alternative and Complementary Medicine, 15(8), 929–934. (Documented gentle, natural fluid-balancing properties of Taraxacum officinale.)

Complete Product Facts & Manufacturer Verified Ingredient Profile

Unlike hard chewable tablets loaded with artificial binders, synthetic bacon flavors, or high-glycemic corn syrups, NOW® Pets Cardiovascular Support Powder provides clean, concentrated levels of active nutrients per scoop. Below is the exact manufacturer-verified label breakdown for SKU N4306 (4.5 oz / 127.6 g bottle):

Inactive / Other Ingredients: Chicken Bone Broth Powder (for flavor, sourced from the USA, growth hormone and steroid free) and Silica (natural anti-caking mineral so the powder scoops smoothly).

Allergen & Clean-Label Assurance: ✓ No Artificial Flavors, Colors, or Preservatives • ✓ Gluten-Free • ✓ Non-GMO • ✓ Approx. 90 servings per bottle at the 1/2 teaspoon (21–40 lb dog) daily rate, or 180 servings per bottle at the 1/4 teaspoon (cat & small dog) daily rate!

NOW® Brand Lab Testing, NASC Certification & Strict Contaminant Constraints

Many pet owners do not realize that animal supplements are not pre-approved by the FDA before hitting store shelves, leaving room for unverified brands to cut corners. When you give your dog or cat NOW® Pets Cardiovascular Support, your pet receives a formula held to the exact same pharmaceutical-grade testing standards as NOW® Foods’ human supplements—backed by two layers of independent verification:

• ✓ Prestigious NASC Quality Seal Certified: Every bottle of NOW® Pets Cardiovascular Support carries the official National Animal Supplement Council (NASC) Quality Seal. To earn and keep this seal, NOW® must pass a comprehensive independent facility audit every two years, maintain strict written quality control manuals, follow FDA Center for Veterinary Medicine (CVM) compliant labeling standards, participate in a national adverse event reporting system, and submit to random independent third-party product testing.
• ✓ Over 31,000 In-House Lab Tests Conducted Every Month: NOW® Foods operates world-class, ISO/IEC 17025 accredited analytical and microbiological laboratories (and holds UL® and Eurofins cGMP certifications). Every single month, NOW® scientists perform up to 31,000 individual tests on raw ingredients and finished batches to verify identity, potency, and purity before a single bottle leaves their facility.
• ✓ Strict Heavy Metal & Environmental Contaminant Limits: Dogs and cats have smaller body weights and faster metabolisms than humans, making them extra sensitive to heavy metal accumulation. Using advanced Inductively Coupled Plasma Mass Spectrometry (ICP-MS), NOW® screens raw materials and finished powders for Lead, Arsenic, Cadmium, and Mercury, enforcing strict internal rejection limits that meet or exceed California Proposition 65, USP, and NASC safety thresholds.
• ✓ Pesticides, Steroids & Adulterant Screening: Botanical ingredients like Hawthorn and Organic Dandelion Root are screened via Gas Chromatography and Liquid Chromatography-Mass Spectrometry (GC-MS / LC-TOF-MS) to verify they are free from agricultural pesticides, residual solvents, and synthetic adulterants. The USA-sourced chicken bone broth is strictly verified to be growth-hormone-free and steroid-free.
• ✓ Microbiological Pathogen Testing: Because this product uses a savory bone broth base, every production lot undergoes automated microbiological screening to guarantee the complete absence of harmful bacteria, yeast, mold, Salmonella, E. coli, and Staphylococcus aureus.

Daily Feeding Directions by Pet Weight, Practical Tips & Veterinary Precautions

Directions for Use: For use in Dogs and Cats only. Administer during or immediately after mealtime to maximize nutrient absorption and reduce the chance of mild stomach upset. Simply measure the recommended amount using a standard household measuring spoon and mix directly into wet food, canned food, raw food, or dry kibble moistened with a splash of warm water.

Real-World Feeding Tips & Important Veterinary Safety Precautions

• ✓ Introducing to Finicky Cats or Sensitive Dogs: Although pets love the savory USA chicken bone broth flavor, cats can be suspicious of new textures. Start with a tiny pinch mixed into wet food for the first 2–3 days and gradually build up to the full 1/4 teaspoon serving. For larger dogs taking 1 to 1½ teaspoons daily, dividing the dose between morning and evening meals improves absorption.
• ✓ Synergistic Pairing with Omega-3s: Because CoQ10 and Vitamin E are fat-soluble nutrients, giving this powder alongside a meal or pairing it with NOW® Pets Omega-3 Fish Oil enhances nutrient absorption and provides complementary EPA/DHA support for normal heart rhythm.
• ✓ Veterinary Examination & Medication Interactions: An examination from a licensed veterinarian is recommended prior to using this product. If your pet is currently taking prescription heart medications—such as pimobendan (Vetmedin), ACE inhibitors (enalapril, benazepril), furosemide (Lasix), or digoxin—consult your veterinarian before adding this supplement, as Hawthorn and Dandelion Root work on circulation and fluid pathways. Never stop or reduce prescription heart medications without your vet’s guidance.
• ✓ Poultry Allergy Notice: Because this product uses real USA Chicken Bone Broth Powder for flavor, consult your vet before use if your dog or cat has a diagnosed poultry protein allergy.
• ✓ Official NASC Cautions & Storage: Safe use in pregnant animals or animals intended for breeding has not been proven. If your animal’s condition worsens or does not improve, stop product administration and consult your veterinarian. For animal use only (not for human consumption). Keep out of the reach of children and animals. In case of accidental overdose, contact a health professional immediately. Store in a cool, dry, dark place after opening, and keep the freshness packet inside the bottle.

Why Buy NOW® Pets Cardiovascular Support From VitaNet®, LLC?

When you are shopping for a supplement to support your dog or cat’s heart, freshness and authenticity matter. Heat-sensitive nutrients like CoQ10, Vitamin E, and amino acids can degrade if stored in hot, unconditioned third-party marketplace warehouses. Founded in 1995, VitaNet®, LLC is a proudly independent, family-owned natural health retailer operating out of our physical brick-and-mortar store in Hartville, Ohio with over 31 years of hands-on nutritional expertise.

• ✓ 100% Authentic, Climate-Controlled Inventory: We source directly from authorized manufacturer channels and store all NOW® Pets supplements in our climate-controlled Ohio facility with high inventory turnover—ensuring your pet gets fresh, potent powder with long expiration dates.
• ✓ Unconditional 100% Money-Back Guarantee (We Pay Return Shipping!): Worried your picky cat or dog won’t eat a new powder? At VitaNet®, we offer a full 12-month 100% Money-Back Guarantee on all products. Even if you open the bottle and your pet refuses it, we will refund 100% of your purchase price and pay the return shipping back to us!
• ✓ BBB A+ Accredited & Direct Human Customer Support: We are a long-standing Better Business Bureau (BBB) A+ Accredited Business. Have a question about your order? Call our friendly Ohio team directly at 1-800-877-8702 or 330-877-8786 (Monday–Thursday 10 AM–6 PM, Friday 10 AM–5 PM, Saturday 9 AM–12 Noon EST) or visit us at 887 Edison St NW, Hartville, OH 44632.

Frequently Asked Questions (FAQ) – NOW® Pets Cardiovascular Support Powder

1. What does NOW Pets Cardiovascular Support Powder do for dogs and cats?

NOW Pets Cardiovascular Support Powder provides targeted daily nutrition to keep your dog or cat’s heart muscle strong and blood circulation flowing normally. Formulated by holistic veterinarian Dr. Barbara Royal, DVM, CVA, it combines 200 mg of L-Carnitine and 200 mg of Taurine with CoQ10, Hawthorn Extract, Organic Dandelion Root, Vitamin E, and Magnesium Glycinate to fuel heart muscle cells and protect against oxidative stress.

2. How many servings are in one 4.5 oz (127g) bottle of NOW Pets Cardiovascular Support?

Each 4.5 oz (127.6 gram) container holds approximately 90 servings at the standard 1/2 teaspoon (1.41 g) serving size. That means one bottle lasts about 6 months (180 days) for a cat or small dog under 20 lbs (taking 1/4 tsp daily), 3 months (90 days) for a 21–40 lb dog (1/2 tsp daily), 45 days for a 41–60 lb dog (1 tsp daily), and 30 days for a large dog over 61 lbs (1½ tsp daily).

3. Can I give this powder to a dog eating a grain-free diet for taurine support?

Yes! Many pet parents and veterinarians use NOW Pets Cardiovascular Support to supplement dogs eating grain-free, legume-heavy, or home-cooked diets, as well as breeds predisposed to lower taurine and L-carnitine levels (such as Golden Retrievers, Cocker Spaniels, Boxers, Dobermans, and Cavalier King Charles Spaniels). Each 1/2 teaspoon provides 200 mg of pure Taurine and 200 mg of L-Carnitine. Always check with your veterinarian for blood taurine testing if you suspect a deficiency.

4. What does the powder taste like, and how do I give it to a picky cat or dog?

The powder is naturally flavored with real, USA-sourced Chicken Bone Broth Powder that is free of steroids and growth hormones, giving it a savory chicken aroma that dogs and cats love. Simply mix the measured dose into wet food, canned pate, or dry kibble moistened with a little warm water. For extra-finicky cats, start with a tiny pinch mixed into their favorite wet food and increase to 1/4 teaspoon over several days.

5. Can NOW Pets Cardiovascular Support be given with prescription heart medications like Vetmedin or Lasix?

While amino acids like Taurine, L-Carnitine, and CoQ10 are frequently used alongside conventional veterinary heart care, this formula also contains Hawthorn Extract and Organic Dandelion Root, which gently influence blood vessel tone and fluid balance. If your pet takes prescription cardiac medications such as pimobendan (Vetmedin), furosemide (Lasix), or ACE inhibitors (enalapril/benazepril), always consult your veterinarian before starting this supplement.

6. Is NOW Pets Cardiovascular Support tested for heavy metals and contaminants?

Yes. Every bottle carries the NASC (National Animal Supplement Council) Quality Seal, verifying that NOW Foods passes rigorous independent facility audits and random third-party product testing. In addition, NOW conducts up to 31,000 in-house laboratory tests monthly in its ISO/IEC 17025 accredited labs, screening raw materials and finished powders for heavy metals (lead, arsenic, cadmium, mercury), pesticides, and harmful microbes.