It is one of the fruits with a high vitamin C content, which not only enhances the function of the digestive tract by strengthening the active cells in the gastrointestinal mucosa, but also eliminates free radicals in the body, reducing the possibility of digestive diseases. 3. watermelon, which has the effect of detoxification and detoxification of diarrhea, contains a large amount of vitamins and water to soften dry stools and promote the elimination of toxins from the body.