Vitamin K2 might just be the least crazy vitamin craze. Studies show it helps keep arteries clear of calcium build up, but also puts calcium where it’s needed, in the bones. Find out how to build Vitamin K2 into your diet.
Fluoride has been controversial for longer than many of us have been alive. Back in the 1940s and 50s, when scientists introduced the idea of adding fluoride to our water systems to strengthen Americans’ teeth, people fought the effort.