Children's calcium-magnesium daily sachets: The Day Tunteun Kids

In short

The Day Tunteun Kids Calcium Magnesium Plus K2 is a children's nutritional supplement I gave my five-year-old while they adjusted to a new daycare in Korea. One sachet after dinner was easy for me to manage, and my child liked taking the pink product on their own.

Calcium-magnesium product for my child's nutrition

Good to know

Product
The Day Tunteun Kids Calcium Magnesium Plus K2, Strawberry Flavor
Use context
A five-year-old adjusting to a new daycare
How I gave it
One sachet per day, after dinner
Ingredients featured in the original post
Calcium, magnesium, vitamin D3, and vitamin K2

Prices as written by the tester on Feb 27, 2026 · not updated automatically

Why did I start giving calcium-magnesium to my five-year-old?

When my child turned five, they moved to a new daycare. I worried about whether they would adjust well after leaving a familiar place, so I paid closer attention to their usual meals and basic nutrition.

Calcium-magnesium product for my child's nutrition
Calcium-magnesium prepared for my child during enrollment season
Children's calcium-magnesium for the daycare adjustment period

It was also a busy period for me, going back and forth between work and home while preparations for enrollment and graduation overlapped. I thought my child would feel nervous about the unfamiliar environment too, which made me want to take even better care of them.

Calcium-magnesium for my five-year-old's nutrition
Calcium-magnesium prepared around new daycare enrollment
Children's calcium-magnesium product chosen for my child

The product I started giving them then was The Day Tunteun Kids Calcium Magnesium Plus K2. In the mornings, I had to handle my child's meal and get ready for work, so it mattered that it would be easy to manage even in a busy routine.

Calcium-magnesium given to my child in a busy routine

When I spoke with parents of children the same age who were also changing daycares, we had similar concerns about adjustment. I looked at the product's composition because I wanted to support my child's bone health and basic nutrition.

Calcium-magnesium chosen for my child's basic nutrition

What did I look for in the ingredients and materials?

I noticed that each sachet contained calcium, magnesium, vitamin D3, and vitamin K2. I also considered the product's stated 2:1 blend ratio and four functional claims when choosing it.

Children's calcium-magnesium product with reviewed ingredients
Calcium Magnesium Plus K2 for my child
Calcium-magnesium product introduced with ingredient information

Since it was a product for my child, I also checked the information about the ingredients. I liked the guidance stating that it did not include ingredients from Japan or China, as well as the explanation that it uses vitamin K2 in trans MK-7 form.

Children's calcium-magnesium with reviewed ingredient information

Did my child take it well, and was it easy to manage?

After work, I picked up my child, gave them dinner, and then gave it to them. When I suggested having the pink product, my child liked it enough that they now took it on their own.

Calcium-magnesium given to my child after dinner
Pink calcium-magnesium product my child enjoys

My child held the product tightly in their hand and took it well. One sachet a day was convenient for me during busy days, and I liked how willing my child was to take it on their own.

Child holding calcium-magnesium product in hand
Child taking calcium-magnesium on their own

Where to buy

더데이 · The Day Tunteun Kids Calcium Magnesium Plus K2, Strawberry Flavor더데이 튼튼키즈 칼마디 플러스 K2 딸기맛Prices as written by the tester on Feb 27, 2026 · not updated automatically
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