Vitamin K2 & D3 daily bone care: THE DAY Family Bone Care
In short
THE DAY Family Bone Care Supercritical Vitamin K2 & D3 is a once-daily vitamin supplement I tried while looking into bone-health nutrients for my family. The capsule was not overly large and was easy for me to swallow, while the compact, tidy package was convenient to store.

Good to know
- Product
- THE DAY Family Bone Care Supercritical Vitamin K2 & D3
- Testing context
- I regularly take supplements but had not separately taken nutrients related to bone health.
- Frequency
- Once daily, according to the original post.
- Ingredient information
- According to the product description, vitamin K2 is 99% or more Trans MK-7, and the vitamin D3 uses an ingredient from DSM in Switzerland.
Prices as written by the tester on Mar 13, 2026 · not updated automatically
I received this product and tried it.

Why I looked for a vitamin K2 and D3 product
Thinking about my family’s health made me interested in managing bone health as well. I tend to take supplements regularly, but I had not separately taken nutrients related to bone health.

The product I tried this time was THE DAY Family Bone Care Supercritical Vitamin K2 & D3. I was interested in the fact that it lets you take vitamin K2 and vitamin D3 together.

Was the package easy to store?

The package had a clean, uncluttered design, which gave a good first impression. It was also a convenient size to store.

What ingredient features did the product description list?
It contains both vitamin K2 and vitamin D3. The product description states that the vitamin K2 is in a form with 99% or more Trans MK-7, and that the vitamin D3 uses an ingredient from DSM in Switzerland.

The description also says that the vitamin K2 uses an encapsulation method to protect it from light and heat. The ingredient information and features were organized relatively clearly, making the product easy to understand.
How were the once-daily routine and capsule swallowing?
Since it is taken once a day, there was no need to manage a complicated routine. Taking supplements can sometimes feel inconvenient in a busy daily life, so I liked the simple frequency.
For me, the capsule was not overly large, and it went down smoothly, so it was easy to swallow. I plan to continue taking it while also keeping up with exercise and eating habits.






