Arroz Integral, Genmai, Glutinous Brown Rice, Oryza sativa, Riz Asiatique, Riz Brun, Riz Cargo, Riz Complet, Riz Intégral, Sticky Brown Rice.


Overview Information

Brown rice is "unpolished" white rice. Brown rice retains unsaturated fatty acids, protein, minerals, vitamins, and starch that are usually removed during the polishing of white rice. Brown rice is eaten as food and taken as medicine.

Brown rice is used for diabetes, prediabetes, a grouping of symptoms that increase the risk of diabetes, heart disease, stroke (metabolic syndrome), diarrhea, and many other conditions, but there is no good scientific evidence to support these uses.

How does it work?

It is not known how brown rice might work for medical conditions. Developing research suggests brown rice might help to lower levels of blood sugar in people with diabetes. There is also some evidence that it might keep some kinds of cancer cells from multiplying.


Uses & Effectiveness?

Insufficient Evidence for

  • Diabetes. Early research shows that eating a specific type of brown rice called glutinous or sticky brown rice can help with blood sugar control in people with type 2 diabetes. However, regular brown rice does not have the same benefit.
  • Prediabetes. Early research shows that replacing white rice in the diet with brown rice that has been allowed to start sprouting might help with blood sugar control, cholesterol levels, and blood pressure in people with prediabetes.
  • A grouping of symptoms that increase the risk of diabetes, heart disease, and stroke (metabolic syndrome). Early research shows that eating a specific type of brown rice called glutinous or sticky brown rice can help with blood sugar control, body weight, and cholesterol levels in people with metabolic syndrome. However, regular brown rice does not have the same benefit.
  • Diarrhea.
  • Upset stomach.
  • Nausea.
  • Jaundice.
  • Swelling (inflammation).
  • Paralysis.
  • Hemorrhoids.
  • Psoriasis and other skin ailments.
  • Other conditions.
More evidence is needed to rate the effectiveness of brown rice for these uses.

Side Effects

Side Effects & Safety

When taken by mouth: Brown rice is LIKELY SAFE for most people when consumed in amounts commonly found in foods. There isn't enough reliable information to know if brown rice is safe when used in medicinal amounts or what the side effects might be.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Brown rice is LIKELY SAFE in the amounts found in food. But there isn't enough reliable information to know if it's safe in the larger amounts that are used as medicine. Stay on the safe side and stick to food amounts.

Diabetes: When brown rice is used as medicine, it might lower blood sugar. Watch for signs of low blood sugar (hypoglycemia) and monitor your blood sugar carefully if you have diabetes and use brown rice as medicine.

Surgery: When brown rice used as medicine, it might interfere with blood sugar control during and after surgery. Stop using brown rice as medicine at least 2 weeks before a scheduled surgery.



We currently have no information for BROWN RICE Interactions.



The appropriate dose of brown rice depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for brown rice. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.

View References


  • Bird AR, Hayakawa T, Marsono Y, et al. Coarse brown rice increases fecal and large bowel short-chain fatty acids and starch but lowers calcium in the large bowel of pigs. J Nutr 2000;130:1780-7. View abstract.
  • Bui TN, Le TH, Nguyen do H, et al. Pre-germinated brown rice reduced both blood glucose concentration and body weight in Vietnamese women with impaired glucose tolerance. J Nutr Sci Vitaminol (Tokyo). 2014;60(3):183-7. View abstract.
  • FDA, Center for Food Safety and Applied Nutrition, Office of Premarket Approval, EAFUS: A food additive database. Website: (Accessed 23 February 2006).
  • Hagiwara H, Seki T, Ariga T. The effect of pre-germinated brown rice intake on blood glucose and PAI-1 levels in streptozotocin-induced diabetic rats. Biosci Biotechnol Biochem 2004;68:444-7. View abstract.
  • Katayama M, Sugie S, Yoshimi N, et al. Preventive effect of fermented brown rice and rice bran on diethylnitrosoamine and phenobarbital-induced hepatocarcinogenesis in male F344 rats. Oncol Rep 2003;10:875-80. View abstract.
  • Madar Z. Effect of brown rice and soybean dietary fiber on the control of glucose and lipid metabolism in diabetic rats. Am J Clin Nutr 1983;38:388-93. View abstract.
  • Miller JB, Pang E, Bramall L. Rice: a high or low glycemic index food? Am J Clin Nutr 1992;56:1034-6. View abstract.
  • Nakayama T, Nagai Y, Uehara Y, et al. Eating glutinous brown rice twice a day for 8 weeks improves glycemic control in Japanese patients with diabetes mellitus. Nutr Diabetes. 2017;7(5):e273. View abstract.
  • Oh CH, Oh SH. Effects of germinated brown rice extracts with enhanced levels of GABA on cancer cell proliferation and apoptosis. J Med Food 2004;7:19-23. View abstract.
  • Oh SH, Soh JR, Cha YS. Germinated brown rice extract shows a nutraceutical effect in the recovery of chronic alcohol-related symptoms. J Med Food 2003;6:115-21. View abstract.
  • Oh SH. Stimulation of gamma-aminobutyric acid synthesis activity in brown rice by a chitosan/glutamic acid germination solution and calcium/calmodulin. J Biochem Mol Biol 2003;36:319-25. View abstract.
  • Shimabukuro M, Higa M, Kinjo R, et al. Effects of the brown rice diet on visceral obesity and endothelial function: the BRAVO study. Br J Nutr. 2014;111(2):310-20. View abstract.
  • Terashima Y, Nagai Y, Kato H, Ohta A, Tanaka Y. Eating glutinous brown rice for one day improves glycemic control in Japanese patients with type 2 diabetes assessed by continuous glucose monitoring. Asia Pac J Clin Nutr. 2017;26(3):421-426. View abstract.
  • Zhang G, Pan A, Zong G, et al. Substituting white rice with brown rice for 16 weeks does not substantially affect metabolic risk factors in middle-aged Chinese men and women with diabetes or a high risk for diabetes. J Nutr. 2011;141(9):1685-90. View abstract.

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CONDITIONS OF USE AND IMPORTANT INFORMATION: This information is meant to supplement, not replace advice from your doctor or healthcare provider and is not meant to cover all possible uses, precautions, interactions or adverse effects. This information may not fit your specific health circumstances. Never delay or disregard seeking professional medical advice from your doctor or other qualified health care provider because of something you have read on WebMD. You should always speak with your doctor or health care professional before you start, stop, or change any prescribed part of your health care plan or treatment and to determine what course of therapy is right for you.

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