Agaric, Agaricus, Agaricus blazei, Agarikusutake, Brazil Mushroom, Brazilian Mushroom, Brazilian Sun-Mushroom, Callampa Agaricus, Champignon Agaric, Champignon Brésilien, Champignon du Brésil, Cogumelo do Sol, Kawariharatake, Himematsutake, Mushroom, Sun Mushroom.
Agaricus mushroom is a fungus. It originated in Brazil, but is now grown in China, Japan, and Brazil for sale. A solution containing chemicals that are taken from the plant (extract) is used as medicine.
Agaricus mushroom is used for cancer, type 2 diabetes, high cholesterol, “hardening of the arteries” (arteriosclerosis), ongoing liver disease, bloodstream disorders, and digestive problems. Other uses include prevention of heart disease, weakened bones (osteoporosis), and stomach ulcers. It is also used to boost the immune system and for physical and emotional stress.
In Japan, extracts of the agaricus mushroom are approved as a food additive.
It is also consumed as food and tea.
How does it work?
Agaricus mushroom contains chemicals that might improve the body's use of insulin and decrease insulin resistance in people with type 2 diabetes. Some developing research also suggests it might be able to strengthen the immune system, fight tumor development, and work as an antioxidant.
Possibly Effective for...
- Type 2 diabetes. People with type 2 diabetes often have “insulin resistance.” This is the inability to use insulin properly. Insulin is the hormone that allows sugar to move into the cells and be used as energy. Many medications that are used to treat diabetes work by lowering insulin resistance. Some research shows that certain medications are better at lowering insulin resistance when they are given with agaricus mushroom extract.
Insufficient Evidence to Rate Effectiveness for...
- Cancer treatment (chemotherapy) side effects. Developing research suggests that taking agaricus mushroom might reduce some of the side effects of chemotherapy including weakness and loss of appetite.
- High cholesterol.
- “Hardening of the arteries” (arteriosclerosis).
- Ongoing liver disease (chronic hepatitis).
- Digestion problems.
- Heart disease prevention.
- Weak bones (osteoporosis) prevention.
- Stomach ulcer prevention.
- Immune system strengthening.
- Other conditions.
Natural Medicines Comprehensive Database rates effectiveness based on scientific evidence according to the following scale: Effective, Likely Effective, Possibly Effective, Possibly Ineffective, Likely Ineffective, and Insufficient Evidence to Rate (detailed description of each of the ratings).
Agaricus mushroom extract seems to be safe for most people when taken for up to 12 weeks. Powdered agaricus seems to be safe for most people when taken for up to 6 months. Agaricus products can cause blood sugar to go too low (hypoglycemia) in some people with diabetes. They can also cause itching, nausea, and diarrhea.
A few people who took agaricus mushroom during treatment for cancer have developed severe liver damage, and a few have had allergic reactions.
Special Precautions & Warnings:Pregnancy and breast-feeding: Not enough is known about the use of agaricus mushroom during pregnancy and breast-feeding. Stay on the safe side and avoid use.
Liver disease: There is some concern that agaricus mushroom might cause liver disease or make it worse. Don't use it if you have liver disease.
Surgery: Agaricus mushroom might lower blood sugar. There is some concern that it might interfere with blood sugar control during surgery. Stop using agaricus mushroom at least 2 weeks before a scheduled surgery.
Medications used for diabetes (Antidiabetes drugs)Interaction Rating: Moderate Be cautious with this combination.Talk with your health provider.
Agaricus mushroom might decrease blood sugar in people with type 2 diabetes. Diabetes medications are also used to lower blood sugar. Taking agaricus mushroom along with diabetes medications might cause your blood sugar to go too low. Monitor your blood sugar closely. The dose of your diabetes medication might need to be changed.
Some medications used for diabetes include glimepiride (Amaryl), glyburide (DiaBeta, Glynase PresTab, Micronase), insulin, pioglitazone (Actos), rosiglitazone (Avandia), chlorpropamide (Diabinese), glipizide (Glucotrol), tolbutamide (Orinase), and others.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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Ahn WS, Kim DJ, Chae GT, et al. Natural killer cell activity and quality of life were improved by consumption of a mushroom extract, Agaricus blazei Murill Kyowa, in gynecological cancer patients undergoing chemotherapy. Int J Gynecol Cancer 2004;14:589-94. View abstract.
Barbisan LF, Miyamoto M, Scolastici C, et al. Influence of aqueous extract of Agaricus blazei on rat liver toxicity induced by different doses of diethylnitrosamine. J Ethnopharmacol 2002;83:25-32. View abstract.
Bernardshaw S, Johnson E, Hetland G. An extract of the mushroom Agaricus blazei Murill administered orally protects against systemic Streptococcus pneumoniae infection in mice. Scand J Immunol 2005;62:393-8. View abstract.
Chen L, Shao H. Extract from Agaricus blazei Murill can enhance immune responses elicited by DNA vaccine against foot-and-mouth disease. Vet Immunol Immunopathol 2006;109:177-82. View abstract.
Delmanto RD, de Lima PL, Sugui MM, et al. Antimutagenic effect of Agaricus blazei Murrill mushroom on the genotoxicity induced by cyclophosphamide. Mutat Res 2001;496:15-21. View abstract.
Guterrez ZR, Mantovani MS, Eira AF, et al. Variation of the antimutagenicity effects of water extracts of Agaricus blazei Murrill in vitro. Toxicol In Vitro 2004;18:301-9. View abstract.
Hashimoto T, Nonaka Y, Minato K, et al. Suppressive effect of polysaccharides from the edible and medicinal mushrooms, Lentinus edodes and Agaricus blazei, on the expression of cytochrome P450s in mice. Biosci Biotechnol Biochem 2002;66:1610-4. View abstract.
Hsu CH, Liao YL, Lin SC, et al. The mushroom Agaricus Blazei Murill in combination with metformin and gliclazide improves insulin resistance in type 2 diabetes: a randomized, double-blinded, and placebo-controlled clinical trial. J Altern Complement Med 2007;13:97-102. View abstract.
Kaneno R, Fontanari LM, Santos SA, et al. Effects of extracts from Brazilian sun-mushroom (Agaricus blazei) on the NK activity and lymphoproliferative responsiveness of Ehrlich tumor-bearing mice. Food Chem Toxicol 2004;42:909-16. View abstract.
Kasai H, He LM, Kawamura M, et al. IL-12 Production induced by Agaricus blazei fraction H (ABH) involves toll-like receptor (TLR). Evid Based Complement Alternat Med 2004;1:259-67. View abstract.
Ker YB, Chen KC, Chyau CC, et al. Antioxidant capability of polysaccharides fractionated from submerge-cultured Agaricus blazei mycelia. J Agric Food Chem 2005;53:7052-8. View abstract.
Kim YW, Kim KH, Choi HJ, Lee DS. Anti-diabetic activity of beta-glucans and their enzymatically hydrolyzed oligosaccharides from Agaricus blazei. Biotechnol Lett 2005;27:483-7. View abstract.
Kimura Y, Kido T, Takaku T, et al. Isolation of an anti-angiogenic substance from Agaricus blazei Murill: its antitumor and antimetastatic actions. Cancer Sci 2004;95:758-64. View abstract.
Kobayashi H, Yoshida R, Kanada Y, et al. Suppressing effects of daily oral supplementation of beta-glucan extracted from Agaricus blazei Murill on spontaneous and peritoneal disseminated metastasis in mouse model. J Cancer Res Clin Oncol 2005;131:527-38. View abstract.
Kuroiwa Y, Nishikawa A, Imazawa T, et al. Lack of subchronic toxicity of an aqueous extract of Agaricus blazei Murrill in F344 rats. Food Chem Toxicol 2005;43:1047-53. View abstract.
Lee YL, Kim HJ, Lee MS, et al. Oral administration of Agaricus blazei (H1 strain) inhibited tumor growth in a sarcoma 180 inoculation model. Exp Anim 2003;52:371-5. View abstract.
Martins de Oliveira J, Jordao BQ, Ribeiro LR, et al. Anti-genotoxic effect of aqueous extracts of sun mushroom (Agaricus blazei Murill lineage 99/26) in mammalian cells in vitro. Food Chem Toxicol 2002;40:1775-80. View abstract.
Menoli RC, Mantovani MS, Ribeiro LR, et al. Antimutagenic effects of the mushroom Agaricus blazei Murrill extracts on V79 cells. Mutat Res 2001;496:5-13. View abstract.
Mukai H, Watanabe T, Ando M, Katsumata N. An alternative medicine, Agaricus blazei, may have induced severe hepatic dysfunction in cancer patients. Jpn J Clin Oncol 2006;36:808-10. View abstract.
Nakajima A, Ishida T, Koga M, et al. Effect of hot water extract from Agaricus blazei Murill on antibody-producing cells in mice. Int Immunopharmacol 2002;2:1205-11. View abstract.
Ohno N, Furukawa M, Miura NN, et al. Antitumor beta glucan from the cultured fruit body of Agaricus blazei. Biol Pharm Bull 2001;24:820-8. View abstract.
Ohno S, Sumiyoshi Y, Hashine K, et al. Phase I clinical study of the dietary supplement, Agaricus blazei Murill, in cancer patients in remission. Evid Based Complement Alternat Med 2011, doi 10.1155/2011/192381. View abstract.
Shimizu S, Kitada H, Yokota H, et al. Activation of the alternative complement pathway by Agaricus blazei Murill. Phytomedicine 2002;9:536-45. View abstract.
Takaku T, Kimura Y, Okuda H. Isolation of an antitumor compound from Agaricus blazei Murill and its mechanism of action. J Nutr 2001;131:1409-13. View abstract.