Resveratrol is LIKELY SAFE when used in the amounts found in foods, and when taken by mouth in doses up to 250 mg daily for up to 3 months. Higher doses of up to 900 mg have been taken for up to 2 days. Resveratrol has also been applied to the skin safely for up to 30 days. Special Precautions & Warnings: Pregnancy and breast-feeding: Resveratrol is LIKELY SAFE when used in amounts found in some foods. However, during pregnancy and breast-feeding, the source of resveratrol is important. Resveratrol is found in grape skins, grape juice, wine, and other food sources. Wine should not be used as a source of resveratrol during pregnancy and breast-feeding.

Bleeding disorders: Resveratrol might slow blood clotting. In theory, resveratrol might increase the risk of bleeding in people with bleeding disorders.

Hormone-sensitive condition such as breast cancer, uterine cancer, ovarian cancer, endometriosis, or uterine fibroids: Resveratrol might act like estrogen. If you have any condition that might be made worse by exposure to estrogen, don"t use resveratrol.

Surgery: Resveratrol might increase the risk of bleeding during and after surgery. Stop using resveratrol at least 2 weeks before a scheduled surgery.

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Resveratrol: Uses, Side Effects, Interactions, Dosage, and ...