Both are helpful for leg cramps and allergies. Calcium and magnesium are also natural calmatives. Supplementing them in equal amounts provides the best supplement possible. Because they are difficult to absorb, most people should supplement with them. It includes a team of vitamins and trace elements necessary to properly utilize calcium and magnesium.
Boron helps maintain calcium levels in the body once it is absorbed.
We probably need more calcium and magnesium than any other vitamin or mineral because they are the primary building blocks of bones, teeth and muscles. Very simply, calcium is difficult to absorb for most people. It includes an abundant amount of magnesium and other specific nutrients your body needs in order to absorb and utilize both calcium and magnesium to its fullest potential. Your body needs adequate amounts of magnesium in order to absorb calcium and it also needs adequate amounts of calcium to utilize magnesium. Any calcium supplement that does not contain calcium, magnesium and vitamin D is simply not of much value in terms of absorption and utilization in the body.