2. Calcium
Our bodies use calcium to maintain strong bone density and prevent osteoporosis. If you are a mature person of a certain age, you are probably seeing a lot of spam emails urging you to get more calcium lest your bones shatter to dust. The best sources are dairy products like milk, cheese, and yogurt.
If you hate dairy, you can still get your RDA from foods like kale and canned sardines. Better? No, we didn’t think so. Go ahead and take a calcium supplement, just tread lightly if you are prone to kidney stones or happen to be a woman over 70. Stick to less than 500 mg per dose and take your calcium with vitamin D to improve absorption.