Why don’t you cover 100% of the RIs for Magnesium and Zinc?

Because we still favor a 'food-first' approach whenever possible and encourage everyone to eat a healthy, varied diet. Magnesium and Zinc can be found in food sources, but can be more difficult to obtain in sufficient amounts through diet alone due to factors such as poor soil mineralization. While we don't cover 100% of the RIs for these minerals, our carefully selected amounts are designed to fill common nutrient gaps.