Best Fiber Supplements for Kids in 2023

Did you know that digestive disorders from issues like a lack of dietary fiber in kids' systems account for up to 50% of referrals to pediatric specialists? Fiber supplements can help reinforce the daily portions your kids get from delicious high-fiber foods like oatmeal, popcorn, bananas, apples, whole grain bread, and berries. They are especially important if your child suffers from any of the common childhood digestive problems such as constipation, bloating, diarrhea, and cramps.

You may have heard that fiber is a carbohydrate, and there are actually two types:

• Soluble fiber dissolves in water to help with stool formation
• Insoluble fiber is non-dissolving in water to assist with issues related to constipation

Kidshealth.org suggests adding 'five' or 'ten' to your child's age to get their daily recommended intake range of fiber in grams. For example, a ten-year-old would require 15-20 grams of fiber per day.

Fiber supplements for kids can help meet these daily fiber requirements, even if you have picky eaters or kids with challenging dietary restrictions. Good fiber supplements keep kids' digestion flowing smoothly by using healthy ingredients like prebiotics and probiotics combined with the tastiest flavors that kids love.

But with all the choices available on the market, finding high-quality, affordable supplements can be a challenge. That's why we reviewed scores of options from companies like Feel Great Vitamin Company and Culturelle. Then we compiled the winners into our exclusive buying guide.

The 8 Best fiber supplements for kids in 2024

Feel Great 365 Kids Organic Greens Fiber Superfood Powder (Best Overall)

Made with over 50 real fruits and vegetables like broccoli, strawberry, grapefruit, and kale, this kid's powder has a natural cocoa chocolate flavor that makes it perfect for blending into your kids' favorite shakes, yogurt, milk, and mouthwatering baked goods.  

Feel Great 365 Fiber Superfood combines one gram of dietary fiber with 48 grams of digestive enzymes and 57 grams of probiotics per serving. It provides a daily dose of fiber from real food, just like doctors recommend, so you know your child is getting the best nutrition possible. 

HyFiber Liquid Fiber for Kids (Best Mid-Range)

True to its name, this supplement contains a whopping six grams of fiber per half ounce serving, which beats out most leading brands. People have found success using it for challenging potty training issues and for balancing digestive health, including for children with autism.

With a subtle orange flavor that kids love, HyFiber is a liquid fiber that can either be mixed into drinks or taken straight from the bottle cap.

L'il Critters Kids Fiber Gummies (Best Value)

The vitamin gummy brand in the U.S. combines award-winning strawberry, lemon, and berry flavors with merry multicolors to help make fiber fun for your kids. You'll get three grams of polydextrose fiber per serving. Also, these are the most affordable fiber supplements on our list.

Culturelle Kids Regularity Probiotic & Fiber

The option most recommended brand by pediatricians, Culturelle contains 3.5 grams of kiwi and inulin (chicory root sourced) fiber per serving. It comes in flavorless liquid packages that are great for mixing right into your kid's favorite yogurts, pudding, drinks, and more.

Culturelle also contains the most well-researched childhood strain of probiotics, Lactobacillus rhamnosus GG (LGG), to optimize digestion and assist with the most trying bathroom issues. 

Digestive Advantage Kids Probiotic and Prebiotic Fiber Gummies

These unique gummies have probiotics with their own built-in 'armor.' Their natural protein shell helps them survive your kids' stomach acid much better, so they can deliver more good bacteria to the digestive tract. Affordable and delicious, they provide three grams of prebiotic fiber per serving.

VitaWorks Sugar-Free Vegetarian Fiber Gummies for Kids

If you're looking for a vegetarian, certified kosher, and halal fiber supplement for your kids' diet, look no further than this VitaWorks sugar-free blend. These prebiotic-packed gummies are doctor-recommended and won the Mom's Choice Award, in part because they are sugar-free and contain 100% naturally sourced flavors.

The bonus? They're also keto-diet friendly and gelatin-free, with four grams of inulin (chicory root sourced) fiber per serving. 

SmartyPants Kids Formula & Fiber Daily Multivitamin

This powerhouse chewable for kids aged four and over has 15 essential nutrients, including Omega-3 Fish Oil, Vitamin D3 for immune support, and Vitamin K for bone health. It's a fiber supplement, multivitamin, and tasty snack – all in one!

Each serving contains four grams of inulin (chicory root sourced) fiber, plus vitamins and nutrients to balance energy levels and overall multi-system wellness. SmartyPants fiber gummies taste great and are perfect for kids who struggle to get all their nutrition from their diet.

Garden of Life Dr. Formulated Probiotics Organic Kids

Available in three mouthwatering flavors that kids will love, this gluten-free, organic supplement from a company that prioritizes social and environmental performance to provide kids with high-level digestive and immune support.

The 30-count bottle contains allergen-friendly chewable tablets that are packed with prebiotic acacia fiber, 14 probiotic strains, and Vitamins C and D. Plus, they're easy to transport because the shelf-stable version requires no refrigeration!

Fiber Advance Plant-Based Gummies for Kids

You'll be seeing triple with these all-natural chewables that contain three grams of inulin (chicory root sourced) fiber in every serving and are infused with a trio of tasty flavorings: purple berry extract, coconut oil, and chicory root.

Gummi King Fiber Supplement and Multivitamin

Six scrumptious flavors make these vegan fiber gummies a true king of kids’ palettes. Flavors include strawberry, lemon, grape, orange, cherry, and grapefruit options. Each gummy contains one gram of fiber, making it easy to figure out your child's daily dose.  

Conclusion

The bottom line when shopping for the best fiber supplement for kids is to focus first on fiber levels and high-quality ingredients, and then factor in any special dietary requirements your child may have, like gluten or soy allergies.

You should also consider the supplement's probiotic and probiotic levels, tastiness factor, ease of chewing and swallowing, doctor endorsements, overall price value, and the company's sustainability and manufacturing standards.

In general, kids who are picky eaters or who may experience digestive issues like constipation and bloating can benefit the most from a fiber supplement. Always check with your doctor before giving your child a fiber supplement, take note of the expiration date, and heed the safety warnings on the labels.

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