How Much Fiber Do Men Need? | Healthy Eating | SF Gate

July 5, 2019
A man between the ages of 19 and 50 needs approximately 38 grams of fiber each day, says the National Institutes of Health’s Food and Nutrition Board. Men over 50 years old need slightly less, about 30 grams daily. There are two types of dietary fiber, soluble and insoluble fiber, and men who eat good sources of both regularly may be less likely to develop a variety of chronic medical problems. “}}