I've been supplementing with 5000 IU D3 and just read at The Daily Lipid that D may calcificate your soft tissues if you don't have enough A and K. So, should I start drinking cod liver oil for A (I hate liver) and supplementing with K? According to cronometer, I get all the A and K I need via food, but I don't know if they are bioavailable enough since they are mostly derived from vegetables. Should I stop supplementing with D3? Or perhaps take a lower dose? At the moment it's winter and don't get enough sunlight.
asked bygiacinto (571)
Get FREE instant access to our Paleo For Beginners Guide & 15 FREE Recipes!
on February 16, 2013
at 11:02 PM
It's probably a safe bet that you're not producing enough vitamin D via UV exposure that the supplemental D3 isn't going to be problematic.
But you could probably take some K2 to hedge your bets...
Or get some sun (vitamin D), eat a little liver and a lot of plants (retinol and beta carotene), and eat a good amount of grass-fed animals (vitamin K2). That would be the natural, arguably optimal, way to do it.