calcium and magnesium in well-absorbed citrate-malate form*
- a 1:1 ratio of calcium and magnesium
- optimally absorbable form of these minerals
- to improve absorption in individuals with low stomach acid
Calcium and magnesium are the essentials: anthropological evidence indicates humans were high consumers of calcium until the onset of the Agricultural Age 10,000 years ago. Current calcium intake is one-quarter to one-third of our evolutionary diet, indicating we may not be consuming enough dietary calcium. Doses of well-absorbed calcium citrate-malate (that are significantly lower than what is conventionally recommended) promote bone density.*
Magnesium is present in all cells of the body and is involved in over 300 enzymatic processes, including energy production.* Magnesium is essential for maintaining normal bone density, normal cardiac rhythmicity, normal pulmonary function, and normal blood glucose regulation.* Other body functions requiring magnesium include nerve conduction, methyl-group transfer, conversion of pyridoxine to pyridoxal 5'-phosphate (the active form of vitamin B6), production of energy, and muscle contraction.* Magnesium supplementation appears to be a significant support to maintaining already normal bone density.*
The appropriate intake ratio of calcium to magnesium is undecided, with some authors in the scientific literature supporting a 2:1 ratio (twice as much calcium than magnesium) and others recommending a 1:1 ratio. Thorne Research offers several formulas with varying ratios of calcium to magnesium to meet individual needs.
Cal-Mag Citramate provides a 1:1 ratio of calcium and magnesium as the well-absorbed citrate-malate chelate.* Magnesium and calcium appear to work in tandem in the body, with both necessary for many functions, including maintaining normal blood pressure, muscle contraction, and menses.* In addition to calcium, magnesium is essential for helping maintain normal bone density.* Magnesium depletion impairs mineral homeostasis by reducing the activation of vitamin D.*