Our Bone Support Kit is designed to give you everything you need to keep your bones haelthy and strong. We include a 90 day supply of Osteo-Fizz and Barefoot Super D3. Osteo-Fizz gives you 1200 mg of calcium to go with the 2000IU of Vitamin D in Barefoot Super D3. Vitamin D3 enhances absorption of calcium by as much as 30%. Taken in tandem, these two products will help keep your bones healthy and strong.