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Nutritional Supplement

Reishi

Side Effects

Side effects from reishi can include dizziness, dry mouth and throat, nosebleeds, and abdominal upset. These rare effects may develop with continuous use over three to six months.23Pregnant or breast-feeding women should consult a physician before taking reishi.

References

1. Leung AY, Foster S. Encyclopedia of Common Natural Ingredients Used in Foods, Drugs, and Cosmetics, 2d ed. New York: John Wiley & Sons, 1996, 255-60.

2. Hobbs C. Medicinal Mushrooms. Santa Cruz, CA: Botanica Press, 1995, 96-107.

3. Jones K. Reishi mushroom: Ancient medicine in modern times. Alt Compl Ther 1998;4:256-66 [review].

4. Kammatsuse K, Kajiware N, Hayashi K. Studies on Ganoderma lucidum: I. Efficacy against hypertension and side effects. Yakugaku Zasshi 1985;105:531-3.

5. Jin H, Zhang G, Cao X, et al. Treatment of hypertension by ling zhi combined with hypotensor and its effects on arterial, arteriolar and capillary pressure and microcirculation. In: Nimmi H, Xiu RJ, Sawada T, Zheng C (eds). Microcirculatory Approach to Asian Traditional Medicine. New York: Elsevier Science, 1996, 131-8.

6. Noguchi M, Kakuma T, Tomiyasu K, et al. Effect of an extract of Ganoderma lucidum in men with lower urinary tract symptoms: a double-blind, placebo-controlled randomized and dose-ranging study. Asian J Androl 2008;10:651-8.

7. Yang Z, Wu F, He Y, et al. A novel PTP1B inhibitor extracted from Ganoderma lucidum ameliorates insulin resistance by regulating IRS1-GLUT4 cascades in the insulin signaling pathway. Food Funct 2018;9:397–406.

8. Yang Z, Chen C, Zhao J, et al. Hypoglycemic mechanism of a novel proteoglycan, extracted from Ganoderma lucidum, in hepatocytes. Eur J Pharmacol 2018;820:77–85.

9. Xiao C, Wu Q, Xie Y, et al. Hypoglycemic mechanisms of Ganoderma lucidum polysaccharides F31 in db/db mice via RNA-seq and iTRAQ. Food Funct 2018;9:6495–507.

10. Wang F, Zhou Z, Ren X, et al. Effect of Ganoderma lucidum spores intervention on glucose and lipid metabolism gene expression profiles in type 2 diabetic rats. Lipids Health Dis 2015;14:49.

11. Klupp N, Kiat H, Bensoussan A, et al. A double-blind, randomised, placebo-controlled trial of Ganoderma lucidum for the treatment of cardiovascular risk factors of metabolic syndrome. Sci Rep 2016;6:29540.

12. Yurkiv B, Wasser S, Nevo E, Sybirna N. The Effect of Agaricus brasiliensis and Ganoderma lucidum Medicinal Mushroom Administration on the L-arginine/Nitric Oxide System and Rat Leukocyte Apoptosis in Experimental Type 1 Diabetes Mellitus. Int J Med Mushrooms 2015;17:339–50.

13. Tie L, Yang H, An Y, et al. Ganoderma lucidum polysaccharide accelerates refractory wound healing by inhibition of mitochondrial oxidative stress in type 1 diabetes. Cell Physiol Biochem 2012;29:583–94.

14. Ma H, Hsieh J, Chen S. Anti-diabetic effects of Ganoderma lucidum. Phytochemistry 2015;114:109–13.

15. Jin H, Zhang G, Cao X, et al. Treatment of hypertension by ling zhi combined with hypotensor and its effects on arterial, arteriolar and capillary pressure and microcirculation. In: Nimmi H, Xiu RJ, Sawada T, Zheng C (eds). Microcirculatory Approach to Asian Traditional Medicine. New York: Elsevier Science, 1996, 131-8.

16. Schmidt U, Kuhn U, Ploch M, Hübner W-D. Efficacy of the hawthorn (Crataegus) preparation LI 132 in 78 patients with chronic congestive heart failure defined as NYHA functional class II. Phytomed 1994;1(1):17-24.

17. Walker AF, Marakis G, Simpson E, et al. Hypotensive effects of hawthorn for patients with diabetes taking prescription drugs: a randomised controlled trial. Br J Gen Pract 2006;56:437-43.

18. Cho YK, Kim Y, Choi M, et al. The effect of red ginseng and zidovudine on HIV patients. Int Conf AIDS 1994;10:215 [abstract no. PB0289].

19. Jones K. Reishi: Ancient Herb for Modern Times. Issaquah, WA: Sylvan Press, 1990, 6.

20. Willard T. Reishi Mushroom: Herb of Spiritual Potency and Wonder. Issaquah, WA: Sylvan Press, 1990, 11.

21. Shu HY. Oriental Materia Medica: A Concise Guide. Palos Verdes, CA: Oriental Healing Arts Press, 1986, 640-1.

22. Hobbs C. Medicinal Mushrooms. Santa Cruz, CA: Botanica Press, 1995, 96-107.

23. McGuffin M, Hobbs C, Upton R, Goldberg A (eds). American Herbal Products Association's Botanical Safety Handbook. Boca Raton, FL: CRC Press, 1997, 55.

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The information presented by Healthnotes is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2020.