(-)- Epicatechin did not affect food intake or the body weight of tested rats, and it showed no acute toxicity even up to dosages of 1.5 g/kg body weight.

Pterocarpus marsupium powder did not produce side effects in diabetic patients and others participating in clinical trials, at the levels used (up to 4 g of Pterocarpus marsupium powder per day, for 12 weeks).