Increased demands for L-arginine, a conditionally essential amino acid, can occur during periods of increased physical stress or illness. L-arginine supports growth hormone metabolism, tissue integrity, energy metabolism, and immune function.^† It also supports the synthesis of nitric oxide, a molecule produced in all body tissues that serves an important role in the cardiovascular, immune, endocrine, and nervous systems in the body.^† Discontinued by manufacturer.

Calcium, magnesium, and vitamin D are each essential for healthy bone formation.^† Calcium and vitamin D support bone mineral density while magnesium supports bone strength and remodeling.^† Cal-Mag 2:1 Plus D supplies calcium citrate, a highly absorbable, well-tolerated source of calcium, balanced with magnesium in a 2:1 ratio. Magnesium bisglycinate chelate from Albion^® Laboratories provides highly absorbable magnesium that is unusually well-tolerated without GI side effects. Natural vitamin D₃ assists calcium absorption to enhance benefits for bone health.^† May be used with MultiThera^® multiple vitamin/mineral supplements to augment calcium, magnesium, and vitamin D intake when necessary. Discontinued by manufacturer.