The calcium chewable that’s tastier and healthier

Made for kids, Hercules Calcium is free from gummy gunk and loaded with great taste.

The calcium chewable that’s tastier and healthier

Made for kids, Hercules Calcium is free from gummy gunk and loaded with great taste

Renzo’s gets rave reviews from parents and kids!

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Hercules CalciumHercules Calcium
Hercules Calcium
Hercules Calcium
Hercules Calcium
Hercules Calcium
Hercules Calcium
Hercules Calcium
Hercules Calcium

Hercules Calcium


  • Kid-approved grapelicious flavor
  • Formulated with vegan vitamin D3 and vitamin K2 for absorption
  • Non-GMO formula made with high-quality, plant-based ingredients 
  • No sticky sugar or gummy junk - bye, bye cavities!
  • Easy to take: Chewable and dissolvable. Or let the tabs magically melt in your kid’s mouth!

Kids love it, or your money back!

Finally, calcium chewables with vitamin D you can feel good about giving to kids! 

 None of the gunk of calcium gummies, but all the good taste

Cheerfully Chewable & magically meltable

Our melty tablets' terrific taste makes taking vitamins an easy and enchanting experience for kids.

Made with Dad-Power, backed by PHD-Power

Handcrafted in our family-owned business by Dr. Rocca for his son. Our vitamins are made in an NSF-certified facility & tested by a third-party lab. 

Practically perfect plant-based ingredients

Our non-GMO melty formulas contain the highest quality plant-based ingredients and tooth-friendly sweetness from monk fruit.

 So good, even Doctors give them to their kids

After giving Renzo’s to their own children, pediatricians and dentists alike recommend them to their patients.

No Sugar. No Gummy. No Compromises 

As parents, we’ve found a better way to nourish our kids without giving in to sugary gummies disguised as "healthy." 

Pediatrician + Dentist recommended 

Parent’s magical quest now has a storybook ending:

A vitamin doctors recommend so much, they give it to their own kids.

My kids (and patients) love the taste!

"As a mom and a Board Certified Pediatric Dentist, Renzo’s is the hands down vitamin for my kids and patients. 

It doesn’t stick to teeth like gummy vitamins.

It doesn’t stain teeth like traditional iron supplements.

My kids (and patients) love the taste!

They have a vitamin routine with every kid in mind including probiotics! I hope you make Renzo’s your family’s choice."

Dr. Jonelle Anamelechi

Board Certified Pediatric Dentist

Have a kid who’s picky with chewable supplements? 

You’re covered by our guarantee.

Kids love it, or your money back!

Questions Parents Ask About Renzo’s Hercules Calcium

How do I know if my child needs a calcium and vitamin D supplement?

If your child doesn’t eat several calcium-rich foods daily, they may need a calcium supplement to build strong bones, teeth, and muscles.

To meet a child’s requirements for calcium (and complementary vitamin D), they’ll need 2-4 servings of dairy daily, depending on their age. 

Have a kid who doesn’t eat dairy? Look at how often they eat calcium-fortified foods and vegan sources of calcium (like spinach). 

Many kids don’t meet the Recommended Dietary Allowance of calcium and vitamin D. That’s why Renzo’s calcium chewables exist. Hercules Calcium makes it easy to top up your kid’s intake of calcium every day.

How much vitamin K2 should my child get per day?

Health officials have defined “adequate intake” amounts for vitamin K (but not “daily value”). Children ages 3-18 need between 30 and 75 mcg of vitamin K daily. 

What do you use instead of sugar to sweeten Renzo’s tabs?

We use mannitol and xylitol. These plant-derived ingredients and natural sugar substitutes give each tab a sweet taste without harmful sugar. Dentists (and tooth fairies) love xylitol because it helps strengthen teeth!

Are these calcium chewables vegan?

Yes, Hercules Calcium is made with vegan vitamin D, so you can feel good knowing no sheep were harmed in the making of these chewables.

Are these chewables or melty vitamins?

Renzo’s tabs can be easily chewed, and they also melt in your mouth. It takes just a few seconds for the tabs to melt, releasing the sugar-free sweetness and fun fruit flavors.

What if my child is too young to chew a calcium supplement?

Your child doesn’t have to chew to get the goodness from Hercules Calcium. As soon as each tablet comes in contact with saliva, it instantly dissolves!

Why should I choose a chewable that dissolves?

Nutrients that are dissolved are more absorbable. Little bodies don’t have to break down hard tablets because these tabs melt on contact with saliva.

Why are calcium and vitamin gummies unhealthy?

Sugar isn’t great for growing bodies, and it’s definitely a no-no for teeth. (Especially when that sugar sticks to teeth because it’s in a gummy.) Gummies are also a choking hazard for toddlers.

That’s why we made Renzo’s tabs that fully melt in the mouth, with no sugar to leave traces on the teeth.

Can my child under 2 take these?

Children under 2 can take this supplement, but because toddlers have specific dietary requirements, we recommend that you ask your doctor for specific dosage requirements. 

As a tip, these calcium tabs can be chewed, swallowed, or dissolved in the mouth or water, so you have a wide variety of ways to give the vitamin to your toddler!

What ingredients are in your natural flavors?

It is possible for our natural flavors to contain trace amounts of other fruits and vegetables. We test our products to make sure there are no traces of the Big 8 allergens: Fish, Shellfish (crustacean), Tree nuts (walnut, pecan, almond), Peanuts, Gluten (wheat, rye, barley), Soy, Milk (Beta-lactoglobulin dairy and casein), and Eggs. 

However, we do not test for other fruits and vegetables. While it is unlikely that our products would contain traces of other fruits, vegetables, or other ingredients, we would highly recommend checking with a healthcare professional before using Renzo’s if your child is sensitive to any ingredients we do not test for.

My child has a food allergy. Is Renzo’s right for me?

Our products are free from the “Big 8 Allergens,” which include: Fish, Shellfish (crustacean), Tree nuts (walnut, pecan, almond), Peanuts, Gluten (wheat, rye, barley), Soy, Milk (Beta-lactoglobulin dairy and casein), and Eggs. 

Our products are tested in 3rd Party Labs which follow FDA guidelines when checking for any traces of the big 8 allergens! 

We always advise consulting with a healthcare professional before using any dietary supplement, along with careful monitoring in the case of treating allergic reactions.