"No medical claims are being made for chlorella. I know that Chlorella is a food, not a medicine. We should realize, however, that when the proper foods are used, together with the right supplements to build up the health level of the body, diseases are often "crowded out". This is nature's way of healing the body. To put it very simply, there is no room for disease in a healthy body. When the tissues are cleansed and strengthened, and when we have removed the obstacles to healing that drag on all the glands and organs, I feel the body heals of its own accord. It would be difficult to describe the many highly technical experiments scientists have run to find out what biologically active substances are in CGF and what these substances do, singly and in combination. We must realise, however, that the reason why many scientists are putting so much time and effort into investigating Chlorella and CGF is because there is already a great deal of proof that Chlorella and CGF, even in relatively small amounts, stimulate growth, tissue repair and healing to an extent not previously found in any other food." 

"Chlorella, Jewel of the Far East" by Dr Bernard Jensen,D.O.,Ph.D. 

Chlorella & Liver Function 

"Fink studied Chlorella as a food in rats and concluded that it prevented liver gangrene in these animals. The agents that were thought to be exerting these effects were thioamine acid, vitamin E and an unidentified substance (factor 3 of Schwarz)....Chlorella has also been shown to protect the liver from toxic injury due to ethionine. Ethionine is a drug which induces a fatty liver type of injury much like the liver damage that malnutrition produces. Other studies have shown elevated levels of albumin and decreased levels of globulins while taking Chlorella which is what you would expect to see. 

"Chlorella - Natural Medicinal Algae" by Dr David Steenblock,B.S.,M.Sc.,D.O. 

"In 1975 Japanese researchers published an article in the Japanese Journal of Nutrition showing that chlorella in the diet lowered both the blood cholesterol and liver cholesterol. There was a definite effect by chlorella on liver function....Chlorella rescues a toxin-laden, fatty, mineral-deficient liver by a combination of methods. First, its chlorophyll cleanses and soothes the irritated tissue in the bowel and builds up the haemoglobin content of the blood. Second, chlorella stimulates better bowel function and increased bowel elimination, as noted in Japanese and U.S. medical studies. Better bowel function carries off more cholesterol and fats in the waste, instead of allowing them to be assimilated into the bloodstream where they could be more of a problem. Further, the high DNA/RNA content of chlorella directly stimulates liver tissue repair at the cellular level. A clean bloodstream, rich in oxygen-bearing red blood cells, is the foundation of a strong defense against disease. Chlorella's cleansing action on the elimination organs and liver helps keep the blood clean. Clean blood efficiently carries off metabolic wastes from the cells and tissues. I believe the buildup of metabolic wastes in underactive body organs and systems is just as dangerous as an exposure to air and water pollution, nutritionally deficient foods and exposure to chemicals in the workplace." 

"Chlorella, Jewel of the Far East" by Dr Bernard Jensen,D.O.,Ph.D. 

Chlorella and Chlorophyll 

"Chlorella contains the highest percentage of chlorophyll in the known plant world, from 1.7% to 7%. The chlorophyll molecule is very similar to the hemoglobin molecule in blood, and it acts as a wonderful cleanser in the bowel, kidneys, liver and bloodstream. Green plants help build red blood cell count and control calcium in the body. Chlorella contains as high as 7% chlorophyll, 35 times more than we find in alfalfa. 

An experiment by the US Army showed that animals fed chlorophyll-rich greens survived twice as long as other animals when all were exposed to fatal levels of radiation. Another experiment by scientists at National Taiwan University showed that Chlorella helped protect rats from liver damage when they were fed a toxic chemical named ethionine." 

"Chlorella, Jewel of the Far East" by Dr. Bernard Jensen,D.O.,Ph.D. 

"Chlorella's chlorophyll content is important, because it makes an important contribution to chlorella's effect in the body. One example of this is stimulation of erythrocyte (red cell) formation in the blood. 

Two University of Liverpool scientists performed several studies on laboratory animals. In one, induced anemic rabbits were given varying doses of chlorophyll (refined or fresh). The rabbits were able to convert chlorophyll into hemoglobin, thus correcting the anemia. Although the reaction occurred with both types of chlorophyll, the percentage of conversion was higher when the fresh chlorophyll was used. 

In 1941 Dr. S.L.Goldberg reported on treatment of 300 patients suffering from pyorrhea (bleeding gums and loosening teeth), noting significant improvement. Vincent's stomatitis, a gum infection which occurs most often in persons suffering from stress with an underlying cause of a severe vitamin C deficiency, was also treated by the doctor with chlorophyll. Goldberg noted that the use of chlorophyll resulted in a tightening of the teeth, the cessation of bleeding from the gums and the growth of new tissue to replace damaged tissue." 

"Chlorella - The sun-powered supernutrient and its beneficial properties" by William H. Lee,R.Ph., Ph.D. and Michael Rosenbaum, M.D. 

"In addition to CGF, Chlorella also contains more chlorophyll per gram than any other plant. Since chlorophyll's chemical structure is similar to hemoglobin’s (the red pigment of blood) several scientists have suggested the use of chlorophyll as a medical therapy for anemia. A complete review of chlorophyll and its effectiveness in correcting anemia as well as other medical uses was presented by Kephart in 1955. Briefly, if the person is not lacking iron or copper, the addition of chlorophyll may stimulate the production of blood presumably by providing the precursors to hemoglobin. Much research has been done which has proven that chlorophyll or its derivatives influence bacterial and animal growth, metabolism, and respiration. Chlorophyll or its derivatives stimulate the formation of erythrocytes in the blood, and affect nutrition, synthesis of vitamins in plants, hormone action, tumors, and a number of diseases, like anemia, arteriosclerosis, cardiac hypertension and others." 

"Chlorella - Natural Medicinal Algae" by Dr. David Steenblock,B.S.,M.Sc.,D.O. 

"We must realize that mineral salts in the soil must be water soluble to be used by plants, and if they are water soluble they are also subject to becoming dissolved by rain, washed into streams and rivers and carried off to sea. It is only in this last century that intensive agricultural methods have displaced more natural means of restoring soils. In a few decades, agriculture has stripped the earth of nutrients that may have taken nature thousands or millions of years to put there. The bottom line, depleted soils build depleted food crops; depleted foods build depleted bodies; depleted bodies build disease....Chlorella, unlike most food crops, is grown in liquid, not in soil. The proper ingredients for its efficient growth can be easily obtained, so it can be grown almost anywhere (climate permitting), and the percentage of its various nutrients can be changed by modifying the growth medium. Chlorella transforms inorganic chemicals into active, living bio-nutrients, sun-energized to provide vital food nutrients." 

"Chlorella, Jewel of the Far East" by Dr. Bernard Jensen,D.O.,Ph.D. 

Numerous research projects in the USA and Europe have indicated that chlorella can also aid the body in the breakdown of persistent hydrocarbon and metallic toxins such as DDT, PCB, mercury, cadmium and lead as well as strengthening the immune system response. 

Best Natural Detoxifier Known for Heavy metals and other Synthetics 

Chlorella is comprised of a fibrous, indigestible outer shell (20%) and its inner nutrients(80%). It is the fibrous material that has been proven to actually bind with heavy metals and other synthetics that have accumulated in our bodies. The entire cleansing of the blood and organs will begin to happen after a period of 3-6 months depending on the dosage taken. A person taking 15-20 grams of Chlorella per day is not at all unheard of if someone is trying to combat a disease with the amazing medicinal properties of Chlorella. It is a wholefood, not a concentrate or extract, therefore you can NOT take too much of it because of its detoxifying abilities. 
Dextoxification Properties of Chlorella 

"Detoxification refers to the removal of toxic substances from the body. These substances are either poisons that have entered from outside of the person as occurs in pesticide poisoning or may occur from within the body e.g. when the colon contains bacteria that produce toxic substances or as a result of inefficient metabolism of the body as a whole. The detoxification capability of Chlorella is due to its unique cell wall and the material associated with it. The cell walls of Chlorella have been shown to have three layers of which the thicker middle layer contains cellulose microfibrils. Atkinson et al found a 14nm thick trilaminar layer outside the cell wall proper which was extremely resistant to breakage and thought to be composed of a polymerised carotene like material.....Laboratory studies showed that there were two active absorbing substances - sporopollenin (a naturally occurring carotene like polymer which is resistant to degradation) and the algae cell walls." 

"Chlorella - Natural Medicinal Algae" by Dr David Steenblock,B.S.,M.Sc.,D.O. 

"In Japan, interest in chlorella has focused largely on its detoxifying properties--its ability to neutralize or remove poisonous substances from the body. Japan, with the earliest and most catastrophic experience with nuclear by-products and growing problem of industrial pollution, as exemplified in the outbreak of the mercury-caused Minimata disease, has a special concern with environmental contamination, and paid immediate attention to early medical journal reports of chlorella's effect on pollutants. 

One such test in the United States involved the administration of the poisonous hydrocarbon chlordecone to animals, which were then fed chlorella. The chlorella interrupted the recirculation of the chlordecone and eliminated it from the animal's bodies. The researchers concluded that chlorella was potentially effective as a detoxifier for not only chlordecone but for compounds with similar properties, such as dioxin and PCBs. 
The presence of such contaminants in the food supply and atmosphere was already seen as a problem requiring solution, and such reports encouraged research in Japan, but it was the studies indicating chlorella's effectiveness against radioactive contamination that really stimulated chlorella production in that country. As early as 1950 a paper in Experientia reported that guinea pigs on a diet rich in chlorophyll showed increased resistance to lethal X-rays; the U.S. Army repeated the experiment, with the same results. 
A Japanese study of heavy metal poisoning with cadmium revealed that when 8 grams of chlorella were administered to the test animals daily, cadmium excretion increased threefold in the stool and sevenfold in the urine. 
A 1986 Scottish study reported that cadmium is accumulated internally in algae as a result of a two-phase uptake process. The first phase involves a rapid physiochemical absorption of cadmium onto cell wall binding sites, which are probably protein and/or polysaccharides, followed by a slow, steady intracellular uptake. 
Another example of chlorella's ability to detoxify was shown in a study in which a culture of brewer's yeast was given a lethal dose of four highly toxic substances, mercury, copper, cadmium and PCB. When chlorella extract was added to a mixture of these poisons, the brewers yeast remained alive. Chlorella can also detoxify uranium and lead. Many more studies substantiate the ability of chlorella to remove poisonous materials from the body. It appears the detoxification effect is due both to the chlorophyll content of chlorella and to the composition of its cell walls. This is the reason that cell walls are included when chlorella is prepared for sale. 
The cell walls of chlorella have three layers, of which the thicker middle layer contains cellulose microfibrils, and the outer layer a polymerized carotenoid material. It is this cellular material which first binds the toxic material and then removes it from the body. 

"Chlorella - The sun-powered supernutrient and its beneficial properties" by William H. Lee,R.Ph., Ph.D. and Michael Rosenbaum, M.D. 

"The thick cell wall, which so effectively protects the chlorella cells' ingredients, can be broken down either mechanically or chemically to increase digestibilty. In fact, The cell wall itself has a beneficial effect. When chlorella is used as a food, fragments of the cell wall adhere to and remove heavy metals like cadmium, lead and mercury from the body....Dr Liang-Pin Lin of National Taiwan University said - "We can do experiments to show that chlorella absorbs heavy metals from water. So if you use chlorella as a nutritional supplement it will remove heavy metals such as lead, mercury and cadmium from the body". 

"Chlorella, Jewel of the Far East" by Dr Bernard Jensen,D.O.,Ph.D. 

"Chlorella binds strongly to cadmium and will not give it up to the body. Dr T.Nagano at Shizuoka College of Pharmacy in Japan did a study a study in which rats were given chlorella that contained cadmium to determine whether the cadmium would be absorbed from the chlorella into the rats. In rats given only cadmium (without chlorella), growth retardation was noted, while no problem with growth was seen in those given chlorella containing cadmium. Blood levels of cadmium were determined and demonstrated that the cadmium that was bound to the chlorella was not absorbed into the rats' bodies. 

Chlorella has been used to detoxify people suffering from P.C.B. (polychlorobiphenyl) exposure. Dr Ueda of the Kitakyushu City Institute for Environmental Pollution Research gave 30 patients who suffered from P.C.B. exposure daily doses of 4-6 grams of chlorella for one year. Almost all imroved being less tired, with better digestion and normal bowel movements. Chlordecone (kepone) another very harmful chlorinated hydrocarbon insecticide, has been shown to be removed more than twice as fast from the body when chlorella is taken by mouth. Dr S Pore of the School of Medicine, West Virginia University did a study in which chlorella given to rats speeded up the detoxification of this toxin, decreasing the half-life of the toxin from 40 days to 19 days. 
Drs D Lorch and A Weber reported that chlorella walls absorb and hang onto lead. In 1979 a study done by Dr Horikoshi showed that the cell components extracted from chlorella even bind uranium. 
Chlorella's ability to detoxify the body is very significant because of the large amount of chemicals we are exposed to in today's modern world. This ability to detoxify chemicals is also one of the important differences between chlorella and other "green" products." 

"Chlorella" Health World Magazine 1989 


In many nutritional medicine circles, chlorella, a simple algae plant, is being held in high regard for its health benefits.
Though chlorella isn’t the most requested product in the EU, it has been both a food and supplement in Asian cultures for many years [Source: Kay]. In this algae, there are several nutrients that can improve health. Chlorella is a source of B-12, a vitamin commonly found in proteins [Source: Watanabe]. It also contains B-1, B-2, folic acid, and vitamins C and K [Source: Baianova, Ohkawa]. Its unique composition gives this plant significant antioxidant properties and provides a boost to the body [Source: Miranda].
As concerns increase over pollution and environmental toxins, chlorella offers a simple avenue to better handle these elements. Studies in rats have confirmed that chlorella aided in protection from, and detoxification of, certain toxic chemicals [Source: Pore, Vijayavel]. A study looking at mothers breastfeeding found that those taking chlorella had increased levels of IgA, the body’s natural defense antibodies that can help protect babies. Chlorella also helped clear dioxin, a toxin, from the milk [Source: Nakano]. This, unfortunately, stresses the need for nutrients like this to keep our detoxification systems strong, since nearly all of the women tested in the study had some level of dioxin.
Chlorella has shown mild benefit for high blood pressure and ulcerative colitis [Source: Merchant]. It has demonstrated some positive effect for pain in fibromyalgia as well [Source: Merchant]. Study has also been done with chlorella and diabetes, with animal testing showing chlorella improves insulin sensitivity and may provide protection against the chronic effects of the condition, such as vision loss and early cataracts [Source: Cherng, Shibata]. Chlorella didn’t consistently lower blood sugar levels, but did lower the test HgA1c (or Hemoglobin A1c), which looks at average blood sugars over several weeks. Further research demonstrated that rats on a high fat diet were able to lower their triglycerides and LDL cholesterol when feed was combined with chlorella [Source: Cherng].
Because of these benefits, the nutrient may prove to be a significant supplement for diabetes patients, who are at higher risk for heart disease.
Chlorella is tolerated well, with most human studies listing no significant side effects. That said, one study did find that patients on low doses of chlorella complained of fatigue [Source: Halperin]. Another case documented kidney problems in a child taking the nutrient [Source: Yim]. And a third report suggested that chlorella may have caused high manganese levels in an elderly man [Source: Ohtake]. These were all isolated cases.
Supplements that contain chlorella typically use chlorella pyrenoidosa or chlorella vulgaris. The pyrenoidosa was more commonly used in the studies referenced above, though the vulgaris form also contains vitamin benefits. A typical starting dosage for adults is 500 mg taken twice a day, at or after a meal. This dosage could then be titrated to 1,500-2,000 mg a day, in divided doses. Patients who are on the blood thinner Coumadin (warfarin) should take chlorella with a physician’s supervision.
Chlorella has great potential as a supernutrient for the body. Its detoxification abilities make it an important part of a treatment program, especially for those want to cleanse the body of toxins. Patients with diabetes or fibromyalgia should also consider chlorella, not as a primary treatment, but as part of a program. Hopefully, research will help demonstrate further benefits for heart disease, as chlorella has already proven its benefit in high cholesterol and high blood pressure.

  • 1. Watanabe, F. (2002). Characterization and bioavailability of vitamin B-12-compounds from edible algae. J Nutr Sci Vitaminol (Tokyo), 48(5):325-31.
  • 2. Baianova, IuI. (1981). Comparative evaluation of the vitamin composition of unicellular algae and higher plants grown under artificial conditions. Prikl Biokhim Mikrobiol, 17(3):400-7.
  • 3. Miranda, M.S. (2001). Antioxidant activity of the microalga Chlorella vulgaris cultured on special conditions. Boll Chim Farm,140(3):165-8.
  • 4. Kay, R.A. (1991). Microalgae as food and supplement. Crit Rev Food Sci Nutr, 30:555-73.
  • 5. Pore, R.S. (1984). Detoxification of chlordecone poisoned rats with chlorella and chlorella derived sporopollenin. Drug Chem Toxicol, 7(1):57-71.
  • 6. Vijayavel, K. (2007). Antioxidant effect of the marine algae Chlorella vulgaris against naphthalene-induced oxidative stress in the albino rats. Mol Cell Biochem, 303(1-2):39-44.
  • 7. Nakano, S. (2007). Chlorella (Chlorella pyrenoidosa) supplementation decreases dioxin and increases immunoglobulin a concentrations in breast milk. J Med Food, 10(1):134-42.
  • 8. Merchant, R.E. (2002). Nutritional supplementation with Chlorella pyrenoidosa for mild to moderate hypertension. J Med Food, 5(3):141-52.
  • 9. Merchant, R., Andre, C. (2001). 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, 7:79-91.
  • 10. Merchant, R., Carmack, C., Wise, C. (2000). Nutritional supplementation with Chlorella pyrenoidosa for patients with fibromyalgia syndrome: a pilot study. Phytother Res, 14:167-73.
  • 11. Cherng, J.Y. (2006). Improving glycogenesis in Streptozocin (STZ) diabetic mice after administration of green algae Chlorella. Life Sci, 78(11):1181-6.
  • 12. Shibata, S. (2003). Antioxidant and anti-cataract effects of Chlorella on rats with streptozotocin-induced diabetes. J Nutr Sci Vitaminol (Tokyo), 49(5):334-9.
  • 13. Cherng, J.Y. (2005). Preventing dyslipidemia by Chlorella pyrenoidosa in rats and hamsters after chronic high fat diet treatment. Life Sci, 76(26):3001-13.
  • 14. Halperin, S.A. (2003). Safety and immunoenhancing effect of a Chlorella-derived dietary supplement in healthy adults undergoing influenza vaccination: randomized, double-blind, placebo-controlled trial. CMAJ, 169(2):111-7.
  • 15. Ohkawa, S. (1995). Warfarin therapy and chlorella. Rinsho Shinkeigaku, 35(7):806-7.
  • 16. Yim, H.E. (2007). Acute tubulointerstitial nephritis following ingestion of Chlorella tablets. Pediatr Nephrol, 22(6):887-8.
  • 17. Ohtake, T. (2005). Manganese-induced Parkinsonism in a patient undergoing maintenance hemodialysis. Am J Kidney Dis, 46(4):749-53.
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