Jack Challem

Vitamin D improves health in so many ways that you'll want to jump for joy.

Find out why vitamin K is key for treating osteoporosis, controlling blood sugar, and maybe even preventing cancer.

Learn why this somewhat controversial vitamin is essential for heart health and more.

Love your liver, lower blood sugar, and much more with this compound from milk thistle.

There's no magic wand for completely preventing aging or common diseases such as diabetes, but resveratrol supplements may be the next best thing.

Learn why these friendly bugs are vital for immunity and more.