Most diets have a relatively high calcium intake but a severely low magnesium intake. (partially due to modern diets reliance on dairy and grains that have displaced fruits and vegetables)
Magnesium is a cofactor in bone formation and increases calcium absorption. So don't focus so much on calcium for stronger bones! Focus more on weight bearing exercise, vitamin D and magnesium to keep bones strong.
Where can you get magnesium?
Fruits and Veggies. (dark green vegetables)
Supplement (magnesium citrate mixed in water)
3 Rounds of:
12 Overhead Lunges (95/65)
21 Ring Dips