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All Things Fiber — And Why You & Your Child Likely Aren't Getting Enough

Writer: Emily Dorko
Emily Dorko
Oct 7
3 min read

There’s a lot of buzz around fiber and you may be wondering what the big deal is. Roughly 95% of the population is not meeting the daily recommended amount of fiber. Fiber is a crucial part of a balanced diet for improving and maintaining health, and a necessary nutrient for children and adults alike. So, why aren’t we as a society getting enough?


For starters, the Standard American Diet (SAD) lacks fiber, and is high in ultra-processed foods, added sugars, and refined carbohydrates. This inevitably means a lack of fruits, vegetables, whole grains, and legumes. Relying on processed foods (which refine grain products of the fibrous parts), having a low intake of plant products, and limiting complex carbohydrates significantly reduces the possibility of meeting adequate fiber needs. 


Fiber is important for many daily functions and long-term health. Functions of fiber include:

  • Support digestion

  • Regulate blood sugar

  • Improve satiety- keeps you feeling full longer 

  • Prevent & improve constipation (when drinking adequate fluids also) by adding bulk and softening stool

  • Feed good gut bacteria- strengthens immune function and prevents development of common health conditions

  • Protect heart health


How much fiber do we really need in a day?

  • 12-23 months old: 19 grams

  • 2-3 years old: 14 grams

  • 4-8 years old: 25 grams

  • Girls 9-13 years old: 26 grams

  • Boys 9-13 years old: 31 grams

  • Girls 14-19 years old: 26 grams

  • Boys 14-19 years old: 38 grams

  • Women 19-50 years old: 25 grams or more

  • Men 19-50 years old: 38 grams or more


What does that look like?

Let’s start by looking at what the fiber content in a typical day of eating may look like for a toddler and an adult:


Typical Toddler Day:  

  • Breakfast: 8 oz cows milk, peanut butter toast, banana - 2g fiber

  • Snack: strawberry Greek yogurt, tractor wheel bar- 3.5g fiber

  • Lunch: chicken nuggets, fries, berries - 3g fiber

  • Snack: smoothie melts - 0.5g fiber

  • Dinner: 8 oz milk, Kraft mac n cheese, meatball, avocado - 1.8g fiber

Total: 11g fiber


Typical Adult Day:

  • Breakfast: 2 eggs, 2 slices of white toast, coffee - 2g fiber

  • Snack: Granola bar - 2g fiber

  • Lunch: Turkey and cheese sandwhich on white bread, chips and an apple - 6g fiber

  • Snack: String cheese and crackers - 2g fiber

  • Dinner: 5 oz chicken breast, 1 cup white rice, 1/2 cup broccoli, and a roll - 5g fiber

  • Dessert: 2 small cookies - 2g fiber

Total: 19g fiber


High-fiber foods to include in your family's diet:

  • Fruits: guava, blackberries, raspberries, pear, avocado, blueberries, apple, fig, banana, goji berries (dried), banana, prunes (dried), orange, strawberry, kiwi, mango, raisins

  • Vegetables: green peas, pumpkin, brussels sprouts, sweet potato, broccoli, cauliflower, spinach, carrots, green beans, kale, beets, corn, eggplant, celery, artichoke, squash

  • Whole grains: whole-wheat bread/tortillas/pasta/crackers, oats, quinoa, farro, popcorn, barley, whole-grain cereals (Fiber One, Raisin Bran, Cheerios, instant oatmeal)

  • Legumes: navy beans, white beans, pinto beans, chickpeas, kidney beans, split peas, lentils

  • Seeds & nuts: chia seeds, flax seeds, pistachios, pumpkin seeds, coconut, almonds, sunflower seeds, pecans, walnuts 


How to Add High Fiber Foods In:

  • Add chia seeds and dried goji berries to yogurt or oatmeal

  • Add fresh fruit to oatmeal, yogurt, cereal

  • Add beans or lentils to quesadillas, tacos, soups, pasta sauces 

  • Add finely chopped or shredded vegetables into meatballs, pasta sauce

  • Choose whole-wheat/whole-grain breads and pastas

  • Blend fruits, seeds, and nut butters into smoothies

  • Make nut butter and seed protein snack balls (nut butter, chia/flax seeds, oats, honey, chocolate chips)

  • Include a fruit and vegetable at each meal

  • Use avocado in meals instead of mayonnaise or cheese


Don’t increase fiber too fast!

Too much too fast will not benefit anyone in your house- slow and steady is the name of the game. Slowly increase fiber intake (and fluid intake) to avoid gastrointestinal distress and constipation.



Written by Intern Lauren Johansson. Finalized by Emily Dorko.

 
 
 

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