Solgar Magnesium Citrate uses a supplemental form of magnesium combined with citric acid. This highly absorbable magnesium supplement is involved stimulating the production of calcitonin, which affects the rate of calcium transport and absorption into the bones. Magnesium Citrate benefits bone mineralisation, cellular energy production, muscle functions, and nerve transmission. visit us http://www.tasmanhealth.co.nz/solgar-magnesium-cit rate/ for more details!!