Harvard Health Letter

Rethinking fiber and hydration can lead to better colon health

Certain foods and medications can cause digestion problems, and likewise low intake of fibrous foods can cause constipation. The most common diet shortfalls are water and fiber. To improve digestion, add more water and fiber to the diet: aim for eight to nine glasses of water and 35 grams of fiber from food per day. Other strategies include exercising more, drinking coffee in moderation, and using probiotics—colonies of good bacteria—from a supplement or from food such as Greek yogurt.
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