Kids calcium supplement with strawberry flavor: The Day Tunteunki즈 Cal-Mag-D Plus K2

In short

The Day Tunteunki즈 Cal-Mag-D Plus K2 Strawberry Flavor is an individually packaged powder supplement for children in Korea. I gave it to my child for nutritional support and my spouse and I tried it too; my child liked the mild strawberry taste and soft-melting texture, so I would consider buying it again.

The Day Tunteunki즈 Cal-Mag-D strawberry product introduction

Good to know

Product
The Day Tunteunki즈 Cal-Mag-D Plus K2 Strawberry Flavor
How we used it
Chosen as nutritional support for my child; both parents also took it
Where to buy
The Day official brand store, online
Ingredients mentioned
Calcium, magnesium, vitamin D3, and vitamin K2
Format and packaging
Strawberry-flavored powder in individual easy-cut packets

Prices as written by the tester on Mar 22, 2026 · not updated automatically

My child did not seem to be growing as quickly as other children their age, so I wanted to pay more attention to nutrition. While looking for a product with calcium, magnesium, and vitamin D, I tried The Day Tunteunki즈 Cal-Mag-D Plus K2 Strawberry Flavor.

The Day Tunteunki즈 Cal-Mag-D strawberry product introduction

My biggest concern was whether my child would take it well. Of the various products I have given my child, they took this one especially well and liked it enough to try to have two or three more a day.

The Day Cal-Mag-D strawberry product given to my child
The Day Tunteunki즈 Cal-Mag-D strawberry product

Were the individual packets easy to open and take?

When I first opened the delivery box, the red packaging caught my eye. Its design brought strawberries to mind, and my child was curious about it too.

Cal-Mag-D Plus and Strong multivitamin products
Cal-Mag-D Plus is on the right, and the Strong multivitamin introduced alongside it is on the left.
Cal-Mag-D packaging reminiscent of strawberry flavor
Red packaging of The Day Cal-Mag-D strawberry flavor

It comes in individual packets with easy-cut notches, so I could tear them open by hand without scissors. I also liked the condition and finish of the packaging, and I could check the nutrition information on the back of the box.

Nutrition facts panel on The Day Cal-Mag-D packaging
The nutrition facts panel on the back of the product.
The Day Cal-Mag-D product information from the official website
Source: official website product-detail description.

What did I check when choosing the ingredients?

When choosing supplements, I tend to look at the country of origin of the ingredients first. The information saying that this product does not use Japanese or Chinese ingredients had a major influence on my choice.

Information about The Day Cal-Mag-D ingredients
A Cal-Mag-D product whose ingredients I reviewed.
The Day Cal-Mag-D with ingredient origins reviewed

Because it was a product for my child, I also checked the statement that no coloring was added. The information about ingredients and additives matched the criteria I consider important when choosing a product.

Cal-Mag-D introduced with additive information

When I tried it myself, the powder particles felt fine and consistent. I also liked that it did not clump in the mouth and melted softly.

The Day Cal-Mag-D product description from the official seller
Source: The Day Cal-Mag-D official seller.

Which nutrients does it contain?

The product description presents it as a product with four functional ingredients: calcium, magnesium, vitamin D3, and vitamin K2. I also checked the information that the calcium-to-magnesium ratio is 2:1 and that the vitamin K2 is in Trans MK-7 form.

Cal-Mag-D ingredient information from The Day official seller
Source: The Day official seller.
Information on calcium and magnesium formulation in Cal-Mag-D
I reviewed the calcium-to-magnesium formulation ratio.

I liked having several ingredients in one packet. I thought it would be more convenient than giving separate products one by one.

Cal-Mag-D product introduced with its nutrient combination
The Day Tunteunki즈 Cal-Mag-D product introduction

Did my child like the strawberry flavor and powder format?

To my taste, it was closer to a mild, sweet strawberry flavor than an artificial syrup taste. My child would ask first, saying, “Please give me strawberry powder!” Although it is a powder, it melted softly in the mouth and was easy for my child to take.

Cal-Mag-D introduced with strawberry flavor experience
Cal-Mag-D introduced with powder-format experience

In our home, not only my child but also my spouse and I took it. The two of us had two packets a day, which was simply how we used it at home.

Why would I buy it again?

What satisfied me most was that my child did not refuse it and instead asked for it first. I would consider buying it again because I also liked the hand-tearable individual packets and the combination of several nutrients.

The Day Cal-Mag-D product tried by the family
Cal-Mag-D introduced with repurchase thoughts

Where to buy

더데이 · The Day Tunteunki즈 Cal-Mag-D Plus K2 Strawberry Flavor더데이 튼튼키즈 칼마디 플러스 K2 딸기맛Prices as written by the tester on Mar 22, 2026 · not updated automatically
더데이 공식 브랜드 스토어
온라인 구매

Products · Food & snacks