Your dosage for vitamins D and K2 and how long you should take each ... The tolerable upper limit for vitamin D in adults is 100 micrograms (4,000 IU). Taking amounts above this may be harmful.

Another important factor to consider is the dosage of vitamin K2 in the supplement. The recommended daily intake of vitamin K2 varies depending on age and gender, but most adults need around 90 ...

Vitamin K supplementation may serve as a nocturnal leg cramps treatment reducing frequency, intensity, and duration in older ...

One received vitamin K2 and the other group, a placebo. The dose given was 180 micrograms. For reference, the recommended daily allowance for adult women is 90 micrograms and adult men is 120 ...