He wrote an article that you may have read
http://thepaleodiet.com/vitamin-nutriti ... ity-death/
Except for fish oil and vitamin D, supplementation is a total waste of your time and money.
http://articles.mercola.com/sites/artic ... efits.aspx
One of the major benefits of getting your nutrients from a varied whole food diet is that you're far less likely to end up with too much of one nutrient at the expense of others.
Taking mega doses of vitamin D supplements without sufficient amounts of K2 can lead to vitamin D toxicity symptoms,
However, maintaining an appropriate calcium-to-magnesium ratio is important regardless. Research on the paleolithic or caveman diet has shown that the ratio of calcium to magnesium in the diet that our bodies evolved to eat is 1-to-1
So, all in all, anytime you're taking any of the following: magnesium, calcium, vitamin D3 or vitamin K2, you need to take all the others into consideration as well, since these all work synergistically with each other.
It raises some questions, how do we know if the supplements do more harm than good?
High doses of vitamin D3 is safe (if taken with K2). (It can not be harmful to be in the sun for 30min)
But how about large amounts of magnesium, if you don't take calcium, vitamin D3 or vitamin K2, is it really safe?
You people who take 800-1200 mg of magnesium per day, do you also calcium supplements?
And how about the other things I use like zinc, selenium, glutathione, vitamin c and b? Will it benefit me to take these supplements, or is it better to try to get them through nutritious diet? I do not know the answer.