A concentrated, nutrient-dense green superfood delivering 3,000 mg of pure chlorella per 3-tablet serving to support natural detoxification, cellular energy, and immune defense.
Chlorella is an ancient, single-celled green freshwater microalgae celebrated as one of planet Earth’s richest natural sources of chlorophyll, complete plant protein, carotenoids, and vital trace minerals. Because raw chlorella possesses a tough exterior that human digestive enzymes cannot naturally break down, NOW Foods Chlorella 1000 mg undergoes an advanced mechanical pulverization process. This breaks open the cell wall without heat or chemical solvents, unlocking whole-food micronutrients so your body can absorb them quickly and comfortably.
✓1,000 mg Potency Per Tablet: Flexible daily dosing with fewer pills required compared to standard 500 mg tablets.
✓Mechanically Broken Cell Wall: Ensures maximum bioavailability and easy digestive breakdown.
✓Natural Chlorophyll & Beta-Carotene: Delivers vibrant, whole-plant antioxidants and phytonutrients.
✓Pure & Non-GMO: Formulated without artificial binders, chemical additives, or common allergens.
Why "Broken Cell Wall" Chlorella Matters for Your Digestion
Think of an intact chlorella cell like a walnut inside an unbreakable shell. The cell wall of chlorella is composed of complex cellulose microfibrils and sporopollenin, a rugged material designed by nature to protect the plant from harsh environmental extremes. If you swallow chlorella with an intact cell wall, your digestive tract cannot open the shell, meaning the valuable vitamins, iron, and proteins simply pass through without being utilized.
NOW Foods uses a gentle, mechanical milling method that cracks this outer shell while keeping the delicate interior nutrients 100% intact. By avoiding high heat or harsh acid washes, the natural nutrient profile remains completely bioavailable, gentle on the stomach, and ready for immediate cellular uptake.
Evidence-Based Health Benefits Backed by Clinical Research
Unlike synthetic multivitamin isolates, chlorella delivers a synergistic matrix of vitamins, nucleic acids (known as Chlorella Growth Factor or CGF), and natural pigments. Peer-reviewed clinical trials have documented several distinct physiological benefits:
Chlorella acts as a natural microscopic sponge in the digestive tract. Its unique cellular fibrous structure binds to heavy metals (such as lead, mercury, and cadmium) and common industrial pollutants (such as dioxins), helping prevent them from being reabsorbed through the intestinal lining.
Clinical Reference: Nakano S, Takekoshi H, Nakano M. Chlorella (Chlorella pyrenoidosa) supplementation decreases dioxin and increases immunoglobulin A concentrations in breast milk. J Med Food. 2007;10(1):134-142. (PMID: 17472477)
Human clinical trials have revealed that daily chlorella supplementation helps activate your immune defenses by stimulating Natural Killer (NK) cell activity and supporting the production of interferon-gamma and protective mucosal antibodies (secretory IgA).
Clinical Reference: Kwak JH, Baek SH, Woo Y, et al. Beneficial immunostimulatory effect of short-term Chlorella supplementation: enhancement of Natural Killer cell activity and early inflammatory response (Randomized, double-blinded, placebo-controlled trial). Nutr J. 2012;11:53. (PMID: 22849818)
3. Healthy Cholesterol & Cardiovascular Support
The natural plant sterols, carotenoids, and water-soluble fibers in chlorella support vascular flexibility and help maintain healthy total cholesterol and triglyceride levels already within the normal range.
Clinical Reference: Ryu NH, Lim Y, Park JE, et al. Impact of daily Chlorella consumption on serum lipid and carotenoid profiles in mildly hypercholesterolemic adults: a double-blinded, randomized, placebo-controlled study. Nutr J. 2014;13:57. (PMID: 24920270)
4. Systemic Vitality & Antioxidant Defense
Chlorella contains a broad spectrum of active chlorophyll, beta-carotene, lutein, and bioavailable plant iron. These nutrients play direct roles in hemoglobin production, cellular oxygen transport, and neutralizing everyday oxidative stress.
Clinical Reference: Merchant RE, Andre CA. A review of recent clinical trials of the nutritional supplement Chlorella pyrenoidosa in the treatment of fibromyalgia, hypertension, and ulcerative colitis. Altern Ther Health Med. 2001;7(3):79-91. (PMID: 11347287)
Complete Supplement Facts & Ingredient Listing
VitaNet verifies label accuracy against the physical product packaging and official manufacturer lot releases.
Supplement Facts
Serving Size: 3 Tablets
Servings Per Container: 40
Amount Per Serving
% Daily Value*
Calories
10
Total Carbohydrate
< 1 g (< 1%*)
Protein
2 g (4%*)
Chlorella (Broken Cell Wall) (Chlorella spp.)
3 g (3,000 mg) †
* Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value not established.
Other Ingredients: Carboxymethyl Cellulose, Silicon Dioxide, and Magnesium Stearate (vegetable source).
Allergen Information: Not manufactured with yeast, wheat, gluten, soy, corn, milk, egg, fish, shellfish, tree nut, or sesame ingredients. Produced in a Good Manufacturing Practices (GMP) compliant facility that processes other ingredients containing these allergens.
Quality Testing: Packaged and laboratory tested for heavy metal purity, microbial safety, and authenticity in the USA by NOW Foods.
How to Take NOW Chlorella 1000 mg: Usage & Dosing Guidelines
Suggested Daily Use: Take 3 tablets daily, preferably with meals and plenty of pure water.
Pro-Tip for Beginners: The "Start Low" Strategy
Because chlorella is a potent whole green food that naturally stimulates bowel movement and toxin clearance, first-time users should start with 1 tablet daily for the first 3 to 5 days. Once your digestive system adapts, increase your dose to 2 tablets, and finally reach the full 3-tablet serving (3,000 mg). This gradual approach helps avoid temporary mild gas, digestive rumbling, or loose stools.
Hydration Notice: Always drink an extra 8 to 12 ounces of water when taking chlorella tablets. The dietary fibers within chlorella expand and bind wastes more smoothly when your body is well-hydrated.
Safety Information, Interactions & Precautions
Chlorella is widely recognized as a safe dietary supplement, but as with any therapeutic superfood, certain individuals must exercise caution:
Blood Thinners (Warfarin / Coumadin): Chlorella naturally contains variable amounts of Vitamin K, a nutrient that helps blood clot. If you are taking anticoagulant medications, consult your prescribing physician before using chlorella, as Vitamin K can decrease medication efficacy.
Autoimmune Conditions: Because chlorella stimulates Natural Killer (NK) cell activity and immune function, individuals with autoimmune conditions (such as Lupus, Multiple Sclerosis, or Rheumatoid Arthritis) should use it only under medical supervision.
Iodine & Mold Sensitivities: While chlorella is a freshwater algae (unlike kelp or seaweeds that concentrate oceanic iodine), trace amounts can exist. People with diagnosed algae or mold allergies should perform a patch or single low-dose test.
Pregnancy & Nursing: Always speak with your obstetrician or healthcare professional before introducing new dietary botanicals during pregnancy or lactation.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Frequently Asked Questions About NOW Chlorella 1000 mg
What is the difference between Chlorella and Spirulina?
While both are nutrient-packed microalgae, chlorella is a green freshwater plant containing twice the chlorophyll content of spirulina and a distinct fibrous cell wall prized for binding heavy metals and environmental toxins. Spirulina is a blue-green cyanobacterium with a soft protein membrane, commonly favored for quick plant protein and endurance rather than deep cleansing.
What does "broken cell wall" mean, and why is it necessary?
Chlorella in its wild state has an outer shell made of tough cellulose fibers that human digestive juices cannot break down. NOW Foods uses mechanical pulverization to crack this shell open so that your digestive enzymes can reach and absorb the rich vitamins, iron, chlorophyll, and amino acids stored inside.
What time of day is best to take NOW Chlorella 1000 mg?
Most customers achieve optimal results by taking chlorella in the morning or early afternoon with a meal and a full glass of water. Because it naturally supports cellular energy and metabolism, taking it earlier in the day is preferred over taking it right before bedtime.
Does NOW Foods test this chlorella for heavy metals and contaminants?
Yes. Because chlorella readily binds to metals in its environment, clean sourcing is vital. NOW Foods performs comprehensive analytical testing in its world-class, ISO-accredited laboratories using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to guarantee every batch meets rigorous purity standards for lead, arsenic, cadmium, mercury, microcystins, and microbial pathogens.
Can chlorella turn your stool green?
Yes, this is completely normal and harmless. Chlorella has one of the highest concentrations of dark green chlorophyll found in nature. A slightly greenish tint in the stool simply confirms that the natural plant pigments are traveling through your digestive system.
How many tablets come in this bottle, and how long does it last?
This bottle contains 120 tablets at 1,000 mg each. At the standard recommended serving of 3 tablets daily (3,000 mg total), one bottle provides a full 40-day supply. If you take a lighter maintenance dose of 1 to 2 tablets daily, the bottle will last between 60 and 120 days.
