Friday, June 2, 2023
Friday, June 2, 2023

Hiya Vs. Olly: Which Kids’ Probiotic Should You Choose For Your Child?

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Kid’s bodies are home to 100 trillion types of bacteria, many of which are friendly bacteria known as probiotics. Experts are just now discovering the numerous benefits of these probiotics, which is why so many experts now suggest a daily probiotic for kids, especially since kids typically don’t eat foods (e.g, kimchi, sauerkraut, etc) high in probiotics. In fact, the more we learn, the more we discover that for growing kids, probiotics can help support immunity, digestion, gut health, healthy bowel movements, allergies, and so much more.

Yet with countless options of children’s probiotics on the market, finding the one that will be best for your child is no easy task. Fortunately, our editors compared two leading kids’ probiotic supplement brands to help you make the decision that can impact the health of your child going forward – Hiya and Olly.

Key  Similarities: 

  • Both include at least one probiotic strain known to support a wide range of benefits
  • Both are gluten-free with a focus on taste 
  • Neither contain any artificial sweeteners 
Both sound good on paper, right? Well, we were surprised when we learned about the differences…

Key Differences:

Hiya includes  ZERO  added sugar, whereas the recommended daily dosage for Olly adds up to 4 grams of sugar daily (which unfortunately is not ideal for a daily probiotic).
  • Hiya includes 10 billion CFUs and multiple probiotic strains for additional support while Olly includes ~5% the CFUs compared to Hiya
  • Hiya additionally includes prebiotic fiber, which according to studies is lacking among 95% of kids
  • Hiya is made without any gummy additives that may contribute to cavities and more
  • Hiya’s recommended serving is just one per day, while Olly requires two per day
  • Hiya is sent direct to customers with refillable bottle (to help maximize optimal potency) while Olly is packaged and designed to sit on a store shelf
Learn more about how each product works here:


Hiya was created by Darren Litt and Adam Gillman, two dads who were shocked to learn that many available options for children’s health products were nutritionally light, candy-esque, and worst of all,  contributing to the very health problems they were meant to address.
So instead, they summoned a team of leading pediatricians and nutritionists to formulate a probiotic with zero added sugar and no gummy additives. That way, they could feel comfortable about what they were giving their children. 
Hiya’s new Kids’ Daily Probiotic is supercharged with 10 billion live cultures individually selected for childhood needs and known to support childhood immunity, gut health, and nutrient absorption. Just like their enormously successful kids vitamin, the daily probiotic is sweetened with zero added sugar for a taste kids love.
The probiotic is allergy-friendly so all kids can enjoy its amazing benefits and establish a healthy gut. The best part? Hiya makes it easy by delivering your kid’s probiotics fresh each month on a pediatrician-recommended schedule and with a protective, refillable  bottle that the kids can decorate with stickers they send. With just one probiotic a day and no refrigeration necessary, your kid will be on their way to better health. By taking their probiotic everyday, your kids will learn to take care of their bodies while caring for the environment! 


Olly delivers essential vitamins and minerals active kiddos need plus a boost of live probiotics. Like Hiya, it’s formulated by a team of nutritional experts.
Olly’s kids multi + probiotic is made without artificial sweetening or coloring and comes in a naturally tasty Fruit Punch & Berry Blast flavor.
For kids aged 4 and up, Olly’s recommended serving is 2 gummies per day which can lead to excessive sugar intake. Olly comes packaged in plastic bottles designed for retail store shelves.

Final Note

While both brands offer benefits, our consensus winner is Hiya. Our editors strongly prefer Hiya’s Kids Daily Probiotic because it’s made with zero sugar and offers nutritional benefits for your child while only requiring one serving a day.
Unfortunately for kids today, many gummy options feature unnecessary additives and added sugar that can contribute to poor dental health and other problems the gummies were designed to solve. Hiya is offering something that is widely considered to be a unique mechanism to support kids’ health, and it has been long overdue.
Hiya gets bonus points for being sugar-free and refillable, so every child can get the nutrients they need.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
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