I take once a week 10 000 UI retinyl pamitate (softgel).
I manage so:
breakfast Vit A (with fat)
midday with K2 (1 drop K2 MK4 = 1 000 mcg). High dose fat is needed (optimal at 35 gr fat).
Evening meal: 5 000 UI D3. (2 000 UI in summer time if outside)
Useful info:
Vitamin K uses the same pathway as Vit E. , High-dose vitamin K could contribute to vitamin E deficiency. Idem for glutathion (a small portion of vitamin K is broken down to a compound known as menadione. Menadione must be neutralized, with glutathion).
Source: Masterjohn and Mito on RPF.