It seems there is a lot of confusion and uncertainty about dosage of the fat-soluble, "Paleo" vitamins A-D-K-E. Everything I've read concentrates on toxicity and taking as much as possible to be safe.
Vit-D seems the most studied and 2000IU/50lbs/day seems well established. Unfortunately, there is not a lot of study into how much vit-K is safe, or how little is optimal. I think vit-A & E are not recommended for any supplementation in most healthy westerners.
Given all that uncertainty, I'm inclined to think the answer for Paleo vitamin dosage is to match the ratio found in the milk of green grass fed cows. Using 2000IU/50lbs/day of Vitamin D as a starting point, does anyone know what the A-D-K-E ratio of pasture butter is in order to extrapolate to K, E, and A dosage?