Everything about Vitamin K2
All articles on Vitamin K2 — from dosage to timing, explained clearly.
Vitamin K2 interactions: medicines and nutrients
One vitamin K2 interaction is well documented, several medicines slow absorption — and a good deal of what gets named as an interaction does not hold up.
Vitamin K2 daily requirement: which number applies
There is no separate daily requirement for vitamin K2. What NRV, the DGE estimated value and the EFSA reference value mean, and how much German diets supply.
Vitamin K2 quality: label, stability, origin
Why 200 µg on the tub is not 200 µg in the capsule: what the label reveals, which ingredient breaks the K2 down and how to recognise the raw material.
Vitamin K2 MK-7 all-trans: what the label says
MK-7 all-trans on the label: why only the trans form is biologically active, how cis isomers arise and what measurements on supplements have found.
Vitamin K2 in food: natto, cheese and the rest
Where vitamin K2 actually sits: measured values for natto, Gouda, Emmental, meat and sauerkraut — and what adds up over an ordinary day.
Vitamin K1 vs K2: difference in origin and uptake
K1 and K2 are two forms of the same vitamin: K1 from leafy greens, K2 from bacteria. What separates them in uptake, half-life and on the label.
Vitamin K2 forms: MK-4, MK-7 and the production route
MK-4, MK-7, all-trans, „from natto": which of these is a form, which is the production route — and what the label really tells you about the contents.
How to take vitamin K2: timing, fat, combinations
Vitamin K2 belongs with a meal — the time of day makes no difference, the interval between two portions very much does. What the evidence shows.
Vitamin K2 and calcium: the combination at a glance
Taking vitamin K2, D3 and calcium together: what to watch for in this combination and which interactions are possible — explained factually.
Vitamin K2 overdose: what you should know
Overdosing vitamin K2 and D3: what counts as too much, the role of the recommended amount and what to watch for when taking them.