Constipation is a common chronic disease that is difficult to cure.At present,drug treatment is the main clinical method,but the side-effects of drugs are significant.The effect of food source anti-constipation factors is mild and side effects are minimal.Patients with chronic constipation can take it daily to relieve symptoms.Insoluble dietary fiber,soluble dietary fiber,resistant starch and y-linolenic acid are four common food source anti-constipation factors.This review summarized and sorted out their separation techniques,hoping to be helpful for the development of anti-constipation functional foods.
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