Are the vitamins you use actually made from food or plants? Or are they synthesized? Last time I researched vitamins (a few years ago) only two brands made vitamins with no synthetic vitamins at all, one was Rainbow Light (I think that was the name) and some were natural, some synthesized), and I can’t recall the other company. Non-synthesized vitamins do not have 100% of the RDA, or rarely. Anyway, I will be back tomorrow.
Check out Standard Process vitamins/supplements.
You can get excellent information from www.prohealthsolutions.com
If you call the toll free number, nutritionist will assist you with good information.
I can highly recommend.
Purchased magnesium in January to resolve issue with heart...am taking Vitamins D3 with K1 & K2...needed the magnesium (which I had not been using). Issue was resolved in 24 hours!