What is the best food and drink to eat and drink when suffering from gastro? i have heard that the pectin in cloudy apple juice helps, is this true?

But too much sugar: Apple juice has too much sugar. Loose stools can be from variety of causes. People usually see their doctors if symptoms are bad or last more than 1-2 days. When diarrhea first starts, a person can benefit by stopping oral intake for a few hours, and then start just drinking small amounts (few ounces) of something like Pedialyte or half-strength Gatorade each hour. That should decrease diarrhea.