Windmill Natural Vitamins Magnesium Citrate 400 mg in 2 tablets (1 serving). Magnesium Citrate offers a high potency of the essential mineral magnesium in its highly absorbable citrate form. Essential for calcium metabolism, the production of enzymes and proteins. Windmill offers cutting edge, clinically based formulas to satisfy a variety of market needs, including multi and single vitamins and minerals, whole food supplements, greens, proteins, specialty formulas, anti-aging nutrition, condition specific, performance nutrition, and herbals.ABOUT WINDMILL NATURAL VITAMINS. Windmill offers cutting edge, clinically based formulas to satisfy a variety of market needs, including multi and single vitamins and minerals, whole food supplements, greens, proteins, specialty formulas, anti-aging nutrition, condition specific, performance nutrition, and herbals. NON-GMO, GLUTEN FREE, VEGAN. Windmill Natural Vitamins Magnesium Citrate 400 mg is non-GMO, Gluten Free, and vegan. SUPPORTS HEALTHY BOWEL MOVEMENTS. Windmill Natural Vitamins Magnesium Citrate helps improve bowel movement and helps relieve occasional constipation. HEART, BONE & NERVE SUPPORT. Magnesium citrate, one of the most important minerals that plays an important role in supporting normal heart function, muscle, and bone strength.Best Sellers Rank: See Top 100 in Health & Household. Flavor: Unflavored. Unit Count: 60 Count. Primary Supplement Type: Magnesium. Item Form: Tablet. Brand: Windmill Natural Vitamins. Country of Origin: USA. : B06XC8H3V1. Manufacturer: Windmill Health Products. Date First Available: February 27, 2017. Package Dimensions: 4.41 x 2.13 x 2.05 inches; 4.66 Ounces. Is Discontinued By Manufacturer: No.