Can 200mg of tea polyphenols cause insomnia?

Generally, 200 mg of tea polyphenols will not cause insomnia. The detailed analysis is as follows:

Tea polyphenols are natural antioxidants primarily found in foods such as tea, coffee, and red wine. Generally, moderate intake of tea polyphenols does not lead to sleep disturbances. However, excessive consumption may affect sleep. An intake of 200 mg of tea polyphenols is not considered excessive and typically does not cause insomnia. Nevertheless, individual differences exist—some people may be more sensitive to tea polyphenols, and even a slightly higher intake could disrupt their sleep. Therefore, it is not recommended to consume tea polyphenols in the evening.

If a large amount of tea polyphenols has already been consumed, it's important to relax both body and mind and avoid overstimulation. Avoid vigorous exercise or intense activities before bedtime. Also avoid consuming stimulants such as caffeine close to bedtime. Maintain a good sleep environment, such as keeping the bedroom quiet and comfortable.