The Importance of a High Fiber Diet for Kids

Kids have an increasingly processed diet, which contributes to higher risk of obesity and Type 2 diabetes, as well as overall poor nutrition. There is another concern: inadequate dietary fiber. Fiber is very important for kids’ health and may play a role in decreasing colorectal cancer in young people, which although still uncommon, has alarmingly tripled in 15-19 year olds in the last 20 years. A high fiber diet is associated with a lower rate of all cancers, so starting this habit in childhood can pay off in the long run.

There are 2 types of fiber: soluble and insoluble. Soluble fiber dissolves in water, binds to fats and lowers cholesterol, thereby helping to prevent heart disease.  The beneficial  bacteria in the gut feed on the soluble fiber, increasing the health of the microbiome (microorganisms in the intestinal tract). By controlling the blood sugar, soluble fiber also decreases the risk of Type 2 diabetes. Since soluble fiber causes a feeling of fullness, it helps regulate the appetite and assists with weight control.

Insoluble fiber does not dissolve in water. It softens stool, helping keep bowel movements soft and waste going through the intestinal tract. By preventing constipation, insoluble fiber also decreases the risk of hemorrhoids and diverticulitis.

Getting fiber through a healthy diet is better than relying on fiber supplements. Healthy fiber-containing foods also have other nutrients and vitamins that a fiber supplement does not. Good sources include fruits, vegetables, nuts, lentils, beans, and whole grains. Avoid peeling fruit if possible (except for oranges, etc.) and serve the whole fruit instead of juice which has no fiber but is high in sugar. Avoid processed foods which usually have little fiber.

Include a fruit and/or veggie at each meal and emphasize fiber-containing snacks such as nuts, dried fruits, and carrot/celery sticks. Not all whole grain foods contain adequate fiber, so do look at nutrition labels, aiming for at least 3 grams of fiber per serving.  Popcorn (ideally without butter) has 6 grams of fiber per serving so is fine as an occasional snack.

To estimate how much fiber your child should have daily, add 5-10 to their age. As an example, a 5-year-old should take in 10-15 grams of fiber per day. For comparison, an adult should have about 25-30 grams daily. Go slowly as you increase the fiber, otherwise bloating and discomfort may occur. If your child is old enough, you can look up recipes together using beans, lentils, and other high fiber foods and then have fun cooking up healthy meals. The whole family should make this change to a healthier high fiber diet together, with parents, as aways, leading by example.