Why are whole grains superior to refined grains concerning magnesium content?

Answer

The refining process strips away the nutrient-rich bran and germ

The essential magnesium is concentrated in the bran and germ components of the grain kernel. When grains are refined, these outer layers are removed, leading to a significant reduction in mineral content compared to their whole grain counterparts.

Why are whole grains superior to refined grains concerning magnesium content?
fooddietmineralnutritionmagnesium