An ER Doctor & Mom's Guide to Kids' Nutrition
Dr. Darria Long Gillespie, MD, MBA — Yale & Harvard-trained ER physician, bestselling author, and mom — shares why she trusts Hiya for her own family.
Zero Sugar, No Gummies
Pediatrician-formulated
Third-party Tested
“I give these to my own kids every single day.”
1M+
Parents trust Hiya
4.9/5
Average rating
15+
Essential vitamins
0g
Added sugar
Every Hiya product is developed with pediatricians and nutritionists using research-backed dosages — not guesswork or marketing gimmicks.
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Meet Dr. Darria
As a board-certified emergency physician, bestselling author, TED speaker, and mom, Dr. Darria Long Gillespie knows what it takes to keep families healthy — and what to avoid.
After years of seeing the impact of poor nutrition in the ER, she joined Hiya's Scientific Advisory Board because of the brand's uncompromising commitment to clean, science-backed kids' vitamins.
Yale-trained ER physician, Harvard MBA
Bestselling author of Mom Hacks
National TV health contributor
Hiya Scientific Advisory Board member
Mom who gives Hiya to her own kids daily
Dr. Darria is Featured In
Why Dr. Darria Trusts Hiya
A Doctor's Standard for Her Own Kids
Pediatrician-formulated
Every product is developed with pediatricians and nutritionists using research-backed dosages — not guesswork or marketing gimmicks.
Sugar-free, no gummies
As an ER doctor, Dr. Darria sees the effects of excess sugar daily. Hiya uses monk fruit — zero sugar, zero gummy junk, kid-approved taste.
Third-party tested
Clean Label Project certified. Every batch independently tested for purity, potency, and heavy metals — the transparency Dr. Darria demands.
Clean ingredients only
Free from the top nine allergens, artificial dyes, and toxic fillers. What's NOT in Hiya matters just as much as what is.
Made for ages 2–12
Age-appropriate dosages designed for growing minds and bodies — not scaled-down adult vitamins.
Sustainable by design
A refillable glass bottle with monthly refill pouches — teaching kids healthy habits and environmental responsibility.
Doctor Darria's Top Picks
Daily Multivitamin
Chewable Multivitamin with 15+ essential vitamins & minerals to support immunity, growth, & development among kids.
"This is my number one non-negotiable — the foundation of my kids' daily routine."
Bedtime Essentials
A non-habit forming nightly chewable to help kids relax before bed and wake up rejuvenated and refreshed. Supports calm, focus and brain health, and more. No melatonin or added sugar.*
"Sleep is when kids' brains consolidate learning. This supports healthy sleep naturally — with zero melatonin."
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.
“Most kids get less than half the fiber they need. This fills that gap deliciously.”