Calcium & Magnesium 2:1, Plant Based Algae Mineral Complex, Bone & Teeth Support, High Absorption Formula with Cofactors Boron, Vitamin D3 & K2, Vegan, 60 Tablets, by Igennus… - Walmart.com
Understanding the Balance between Magnesium, Calcium and Vitamin D - GrassrootsHealth
Current opinion on the regulation of small intestinal magnesium absorption
Magnesium - ScienceDirect
Magnesium is a key to calcium absorption and retention – Nature's Own