If the gastrointestinal function is poor, constipation may occur after drinking protein powder, but most people drink protein powder in moderation, which does not cause constipation.
For people with weak intestinal digestive function, consuming too much protein, which cannot be fully digested, will lead to water being over-absorbed, resulting in dry stools and manifesting constipation. And in most cases, moderate intake of protein powder will not affect normal life, so do not worry too much.
If constipation is already a problem, stop using protein powder, drink more water, and enhance gastrointestinal activity through exercise. Secondly, you can also use drugs that promote gastrointestinal power such as mosapride and itopride. If necessary, under the guidance of healthcare professionals, take laxatives such as polycarbophil calcium, lactulose, bisacodyl to assist excretion.
In summary, protein powder belongs to nutritional food supplements, and should be used in moderation. If adverse reactions occur, it is recommended to seek medical help in a timely manner.