Probiotic + Fiber+ Duo
First Month of Fiber+ on Us!
Buy Probiotic, get Fiber+ FREE
Free shipping · Limited time offer
Renews monthly at full price
What's in
the Bundle?
Two products built for kids.
One unbeatable price.
Kids Daily Probiotic
Supercharged with 10 billion live cultures selected for childhood needs, using three of the most clinically-researched probiotic strains for children.
10 billion live cultures
Probiotic and prebiotic fiber
Designed for optimal absorption
Supports gut health
Kids Daily Fiber+
A daily dose of fiber designed specifically for kids in a unique powder blend to support gut health, digestion, and regularity. Most kids fall short on fiber every single day.* Kids Daily Fiber+ is here to help.
Clean source of fiber for kids
Digestive comfort
Helps keep potty time regular
Gut microbiome support
Recommended by the Best
"So many vitamins are loaded with excess sugar and junk. Hiya is really clean."
Dr. Mark Hyman, M.D.
New York Times Best Selling Author
Host of The Doctor’s Farmacy podcast
Founder, Cleveland Clinic Center for Functional Medicine
"Hiya checks the boxes: evidence-based nutrients, zero junk, and designed with real child health in mind."
Dr. Joel Warsh
MD, MScPediatrican
Board-Certified Pediatrician
Author & Parenting Health Expert
Specialist in Holistic Pediatric Care
"Hiya gives my patients the nutrients they need without the sugary junk."
Dr. Monica Madan
Board-Certified Pediatric Gastroenterologist
Children’s Digestive Health Expert
Specialist in Pediatric Nutrition
The Dream Team
Good bacteria. The fiber that feeds them. The complete gut routine.
Kids Daily Probiotic brings the good bacteria — 10 billion live cultures from three of the most clinically-researched probiotic strains for children, in one chewable.
Kids Daily Fiber+ brings the prebiotic fiber those bacteria feed on — 6g per serving from organic inulin, resistant vegetable fiber, dragon fruit and psyllium husk, in a bright pink Island Punch powder you mix with water.
Together they support gut health and digestion — and help keep potty time regular.
4.9 stars
Loved by Parents & Kids
Testimonials featured in videos or other promotional materials may include individuals who have received compensation, free product, or other incentives.
Limited Time Offer!
Get Fiber+ on Us!
4.9 stars
11,000+ Reviews | Millions of Happy Parents
Get The Probiotic + Fiber+ Duo
Get Fiber+ on us for your first month
Renews at full price
Refills delivered fresh monthly | Cancel anytime
Free shipping included
Discount Auto-Applied ✅
We Created Hiya for our Own Kids
Hiya started with two dads who wanted better for their families. After discovering that many children’s vitamins were more like candy than nutrition, they created a daily essential built around clean ingredients, transparency, and the kind of quality they’d trust for their own kids.
Stay Up To Date
Join thousands of parents who get exclusive deals, new product releases, and clean health tips — straight to their inbox.
Let's Answer
Some Questions
Do kids really need probiotics?
The short answer is probably yes. We've all seen what happens when our kid's stomachs are acting up, yet what we don't see is how much the gut is the control center for little kid's bodies. Since toddlers are born with a sterile GI system (that unfortunately gets further impacted by processed foods, added sugar, and antibiotics), a good probiotic is now seen as an essential way to support a healthy immune system, yet so many probiotics are dead on arrival.
What ages should take your probiotic?
Our probiotic is designed for boys and girls starting at age 2. Please always consult your pediatrician to make sure a probiotic is right for your child.
What is fiber and why is it important for kids?
Fiber is an essential nutrient that plays a big role in keeping kids' digestive systems running smoothly. It helps support regularity, gut microbiome health, immune strength, and even healthy blood sugar levels. The challenge is that most kids fall short on their fiber needs. That's where a kids fiber supplement can make a big difference for growing bodies.
Can kids take Kids Daily Fiber+ alongside Hiya's Multivitamin, Probiotic, or Hydration?
Absolutely. Kids Daily Fiber+ is designed to be taken alongside all of Hiya's products, as each has unique and interconnected functions to help your kid get full nutritional support. As with any combination of supplements, we always recommend checking with your pediatrician if you have questions specific to your child.