Kids Belly-Biotic

A unique 3-in-1 pre, post, and probiotic designed to promote gut health, support oral health, fortify immunity and improve overall wellness. 30 day supply of kiwi-flavored gummies for kids ages 4+.


$ per pouch

FREE delivery every month

Cancel anytime

Change, pause, or cancel online. No questions asked.

Subscription Savings Calculator
  • 3 Months
  • 6 Months
  • 9 Months
  • 12 Months
Total Savings: $

$ per pouch

If you subscribe, it's just $ per bottle!

You're missing out on FREE shipping!

You are 87% less likely to succeed in building a healthy habit if you don't subscribe. Are you sure you don't want to subscribe? You can cancel anytime.

Subscription Savings Calculator
  • 3 Months
  • 6 Months
  • 9 Months
  • 12 Months
Total Savings: $

Better When Combined

Bundle with Kids Multivitamins for +$26 per bottle ($21 in total savings!)

Kids Belly-Biotic enhances the body's ability to absorb nutrients from vitamins (and food in general!)

🔥 49+ people choose starter packs every day!

New Customer Offer

Save an additional 10% at checkout with discount code

add to cart
45 day money-back guarantee1.

Works in tandem with our kids daily multivitamin.

Over 38 million gummies sold in 2023.

Join over 460,000 parents who switched to First Day!

We are thoughtful about the ingredients we use and have selected scientifically studied strains that will have the most positive impact on your child’s gut health.

kids tribotic supplement facts

Livaux® (Prebiotic): Made from whole fruit golden kiwi powder, Livaux helps increase the probiotics in your microbiome. It also helps improve gut transit, fecal bulking and mucus production.

Bacillus coagulans SNZ 1969® (Probiotics): Designed to survive the trip through the stomach and all the way to your intestines, where it can germinate and flourish. These probiotics help aid in overall immune health and can even help reduce plaque and cavity-causing bacteria.

Heat-treated Lactobacillus paracasei MCC1849 (Postbiotics): Helps maintain a healthy immune response via stimulating health markers.

Other Ingredients: Organic Tapioca Syrup, Organic Cane Sugar, Water, Pectin, Natural Flavors, Citric Acid, Natural Colors, Organic Carnuba Wax

Free From The Top 8 Allergens: We are dairy-free, soy-free, egg-free, gluten-free, peanut-free, tree nut-free, fish-free, and sesame-free.

Subscribe & Save Details

Receive our eco-friendly refill pouches every 30 days on a pediatrician-recommended schedule.

Plus, you'll receive these benefits:

  • Save 15% every single month.
  • Delivered right to your doorstep for free.
  • Easy management - skip or pause whenever you need.
  • VIP access to sales, gifts, early access & more.
  • Cancel anytime.
kids belly-biotic probiotic gummies
Kids Belly-Biotic
Kids Belly-Biotic
Kids Belly-Biotic
Kids Belly-Biotic
Kids Belly-Biotic
non GMO allergen free probiotic
Belly biotic supplement facts

whoa, belly!

We have a gut feeling your kids are going to like this. Balancing those little tummies can be tricky. That’s why we created these tummy gummies made with three stages of supportive bionics. Livaux® (Prebiotic), SNZ 1969® (Probiotic) and heat-treated Lactobacillus paracasei MCC1849 (Postbiotic). We’ve got your kid’s gut covered.


No Gelatin




No Corn Syrup






Made In The USA

Three Keys To A Healthy Gut Microbiome

Our powerful 3-in-1 combination of prebiotics, probiotics and postbiotics work together to promote a healthy gut microbiome, which is essential for maintaining good health in children. A healthy gut microbiome plays a key role in immunity, cognitive function, respiratory health and heart health - and can also help prevent a variety of health issues, including allergies, asthma, eczema and obesity.

Lifestyle shot of a Kid Belly Biotic Pouch, on a plate, on a table


Probiotics are a healthy type of bacteria that live in the gut. They not only aid with digestion, but also improve overall immunity. Probiotics also aid in oral health, by helping reduce plaque, gingivitis and cavity-causing bacteria.

hand holding a probiotic gummy


Attack bathroom accidents at the source. Think of prebiotics as a type of "food" for probiotics, helping  them flourish & recover. When probiotics are thriving, they can help with irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD), two leading causes of accidents.


We included postbiotics, a natural byproduct of probiotics, to help kid’s bodies maintain a healthy immune response.  Studies have shown an increased antibody response to seasonal illnesses, as well as a decrease in symptoms from the common cold!

A complete 3-in-1 approach to improving your child's gut health, immunity and oral health.

A complete 3-in-1 approach to improving your child's gut health, immunity and oral health.




FirstDay logo. Dark Blue








kids multivitamin and probiotic bundle

Kids TLC Starter Pack

Belly-Biotic and Multivitamin gummies are the perfect pair - formulated to improve your child’s overall health & wellness. Our Kids Belly-Biotic actually increases the body’s ability to absorb the nutrients from multivitamins (and food in general!). If you're new to First Day, our Kids TLC Starter Pack includes a 30-day supply of each, making your mornings that much easier!

Bundle & Save

45-Day Money Back Guarantee

We're confident this is the best probiotic you'll ever give to your kids. But we understand you may be skeptical. So give it a try...worry-free! Have your kids try a gummy (sneak a taste for yourself too). If you're still not happy, just send it back.

Our Scientific Advisors

  • Dr. Ed Giovannucci, MD, MPH, ScDHarvard University

    Dr. Ed Giovannucci,MD, MPH, ScD
    Harvard University

    Dr. Giovannucci researches the intricacies of nutrition and lifestyle and is passionate about bringing healthier lifestyles to families everywhere. At home, he has 2 lovely children who love their veggies but also have a soft spot for chocolate!

  • Dr. Lei Chen, MD, MHSYale University

    Dr. Lei Chen,MD, MHS
    Yale University

    Dr. Chen is a professor and a practicing pediatrician in emergency medicine. He's deeply passionate about child healthcare and travels the worldto help bring better access to health for all. He has fast-growing, twin boys who love building kayaks together with him.

kid's probiotics faqs

Who should take Belly-Biotic Gummies?

We designed these gummies for kids who have frequent tummy aches, bathroom accidents, colds, and all kids in general! Our experts carefully formulated our Kids Belly-Biotic for ages 4+.

Is the product free from common allergens, such as gluten, dairy, or soy?

Yes! Synthetic colors, High-Fructose Corn Syrup, GMOs, Gluten, Eggs, Tree Nuts, Wheat, Peanuts, Artificial Flavors, and Preservatives are a NO-NO here!

Can these be taken with other multivitamins/supplements?

Yes! Our Kids Belly-Biotic gummies actually improve absorption rate of multivitamins, and help absorb nutrients in food as well!

Do these need to be refrigerated?

Unlike some other probiotics, there is no need to refrigerate these! It's best to store them in a cool, dark place away from sunlight.

What clinical studies or research support the effectiveness of this product?

What is the full ingredient list?

Ingredients: Livaux® (New Zealand Gold Kiwifruit powder) 250mg heat-treated Lactobacillus paracasei MCC1849 20mg Bacillus coagulans SNZ 1969® 1 Billion CFUs 10mg

Other Ingredients: Organic Tapioca Syrup, Organic Cane Sugar, Water, Pectin, Natural Flavors, Natural Colors, Organic Carnauba Wax

More questions? Find answers on our FAQ page.

1 We offer a 45-day satisfaction guarantee for returns. It covers 45 days starting from the day that you place an order and includes only the very first purchase of any product so that families can try our gummies - for any reason you aren't happy with your vitamins. Please note that we will refund up to $100 so that you can try up to 3 bottles of our gummies risk free. If you would like to order more than 3 bottles in your first order, we recommend that you ordering less so that your family can try them first. Thanks so much for your understanding!

** Compared with: Flintstones Vitamins Chewable Kids Vitamins; Nordic Naturals Nordic Berries; SmartyPants Kids Formula