I am glad to hear you are not taking acid blocking meds as they increase gut PH which inhibits mineral absorption which, in turn, often causes the body to rob it's own bones of the calcium it needs for various metabolic processes. I was asking about that because acid reflux is very common in the celiac community.

I am not taking anything except for the multivitamins that I purchased from the supermarket.

The critic acid and sodium citrate is corn unfortunately and they don’t have to label corn because it’s not part of the top 9 allergen and not mandatory 😭

Yaya, from the JAMA study you refer to: "Taking 60,000 international units (IU) a day of vitamin D for several months has been shown to cause toxicity." No one on this forum is recommending  taking anywhere near that amount. We're talking about 5-10,000IU daily.