Bone-Building Vitamins - Vitamin D is essential for the absorption of calcium from the digestive tract into the bloodstream. Vitamin2 helps to maintain bone density by promoting the transport of calcium from the blood to the bones. Both of these nutrients are essential for helping to keep strong, healthy bones and teeth.Bone-Health Minerals - Magnesium, zinc and other minerals for bone health are needed to maintain strong bones. Vitamin K2 Osteo Repair contains 300 of Magnesium from Magnesium Oxide. Boron for Bones - Boron is a trace mineral that has beneficial effects on bone and joint strength. This formula contains patentedruitex B OsteoBoron, made from a calcium/carbohydrate/boron complex similar to that found in fruits and vegetables. Ingredients: Vitamin3 (as cholecalciferol) 1000 IU, Vitamin K2 (as menaquinone-7) 200 mcg,cium (as DimaCal Apple acid calcium, TRAACS Calcium Glycinate Chelate, Calcium Fructoborate) 700 mg, Magnesium ( Magnesium Oxide) 300 mg, Zinc (as Zinc Amino Acid Chelate) 2 mg, Manganese (as Mangan Amino Acid Chelate) 1 mg, Silicon [from Horsetail Extract (herb)] 5 mg, Boron (Calcium Fructorate as patented Fruitex B OsteoBoron) 3 mg, Other ingredients: Plant Cellulose (Capsule), Plant Stearic Acid Maltodextrin, Silicon Dioxide, Corn Starch. For best results, take four (4) capsules daily, or as recommended by your health care practitioner Scientific studies have shown that calcium is best absorbed when taken in divided doses, twice a day, with meals. Maintaining optimal vitamin D blood levels also helps to maximize calcium absorption