I already take a basic multivitamin, but my concern is not that I'm trying to make a personal decision based on this article; I make my health decisions based o

I already take a basic multivitamin, but my concern is not that I'm trying to make a personal decision based on this article; I make my health decisions based on more research than that. My concern is that the article makes a strong empirical claim that it does not back up: >However, it also inhibits vitamin D receptors, and as such decreases the body’s uptake of this-much-needed-vitamin. In fact, I can find a couple of studies sort of supporting this, but they have to do with a very specific vitamin D receptor in a very specific subpopulation (elderly women). Some people are going to read this and they're going to assimilate into their "probably true facts" bank the idea that caffeine just generally keeps you from absorbing vitamin D, and then they're going to repeat that fact and it will spread, and we'll have a whole new common belief about caffeine which is probably false.