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| Are there observed “side effects” caused by the intake of resveratrol in humans? |
| • There are no valid data on the toxicity of chronic intake of resveratrol in humans. |
| • A short term human study (29 days) indicated frequent gastrointestinal discomfort/diarrhea only at high doses (2.5 g or 5 g per day). Only minor and inconsistent side effects have been observed in other short-term or acute studies. |
