Kids calcium-magnesium for age 4: The Day Tuntun Kids Cal-Mag Plus K2
In short
The Day Tuntun Kids Cal-Mag Plus K2 Strawberry Flavor is a children’s calcium-magnesium supplement with vitamins D and K2. I gave it to my four-year-old in Korea, who said it was tasty and took it without resistance; I liked the ingredient combination, though I have not seen any noticeable changes yet.

Good to know
- Product
- The Day Tuntun Kids Cal-Mag Plus K2 Strawberry Flavor
- Test context
- Tried with a four-year-old child
- Ingredients
- Calcium, magnesium, vitamin D, and vitamin K2
- Flavor
- Strawberry
Prices as written by the tester on Feb 22, 2026 · not updated automatically
While looking for a kids’ calcium-magnesium supplement for my four-year-old, I chose The Day Tuntun Kids Cal-Mag Plus K2 Strawberry Flavor. Along with the ingredient combination, I considered whether my child could take it without resistance.

Why did I look into calcium-magnesium supplements for my four-year-old?
Once my child turned four, I started hearing a lot about children’s growth from people around me. My child was not especially small compared with peers, but I began looking into products because I wanted to support them in advance during this growth period.

When I searched, there were so many products and advertisements, each with different ingredient combinations, that it was confusing. After comparing several products, I chose The Day Tuntun Kids Cal-Mag Plus K2 Strawberry Flavor.

What did I look for in the ingredient combination?
Rather than looking only at the calcium content, I checked whether magnesium and vitamin D were included as well. I wanted to compare the overall combination rather than focus on one ingredient.


What caught my attention about this product was that it also contains vitamin K2. Whether K2 was included was one of the criteria I considered when comparing products.


I liked the combination of calcium, magnesium, vitamin D, vitamin K2, and strawberry flavor. I was satisfied with the ingredient combination, but I also wanted to see whether my child would actually take it well.


Did my child take the strawberry flavor without resistance?
My child tried it for the first time and said, “This is tasty.” The strawberry flavor seemed to suit them, and they took it without resistance, which was what pleased me most. Since they did not hesitate to take it, it was easier for me to keep giving it to them.

When choosing, I considered whether it was a product for children in their growth years, whether it contained vitamin K2, and whether it had a flavor my child would take well. After trying it, I felt in everyday life that whether it suited my child’s taste mattered most.

Were there any noticeable changes after trying it?
I have not seen any noticeable changes yet. So far, what I have been satisfied with is that my child takes the strawberry flavor comfortably and the ingredient combination I looked into. Rather than having confirmed any growth-related changes, I am giving it with the thought of supporting them in advance.

If you are comparing kids’ calcium-magnesium supplements or looking for a product that includes vitamin K2, you may find it helpful to know that my child did not resist the flavor.

I gave the choice a lot of thought because it was a product for my child. This time, I was satisfied that my child takes it well, so I plan to keep giving it to them.







