According to The Journal of the American Osteopathic Association, Vitamin D remains stored and inactive for as many as 50 percent of Americans. Without magnesium, Vitamin D is not really useful, In fact, a person may suffer from vascular calcifications if their magnesium levels are low and they are taking Vitamin D supplements.
Deficiency in Vitamin D or magnesium could lead to any number of health issues, ranging from cardiovascular diseases to cancer.
The recommended daily allowance for magnesium is 420 mg for males and 320 mg for females, and as much as half of the total population is estimated to be consuming too little.
Some foods high in magnesium include almonds, bananas, beans, broccoli, cashews, egg yolk, fish oil, flaxseed, green vegetables, milk, mushrooms, other nuts, pumpkin seeds, sesame seeds, and sunflower seeds.