Genestra - Cal Mag Berry Liquid - 450 Millilitre(s) - NPN: 80028682 -- Cal Mag Berry Liquid + supports bone health with a combination of calcium and magnesium, plus boron and vitamins A, D and K. Calcium citrate is an organic form of calcium that is significantly better absorbed in postmenopausal women than inorganic calcium oxide.1 Magnesium citrate is a highly bioavailable form of magnesium2 that helps to maintain bone mineral density: in healthy young men, regular magnesium supplementation has been shown to suppress bone turnover rates.3 In vitro osteoblast studies indicate that boron stimulates production of several proteins involved in maintaining bone structure, including type 1 collagen, osteocalcin and osteopontin.