If you have a zinc deficiency, supplementing with a pill or zinc-rich foods can help you feel better. However, if you take too much, you'll feel just as bad.

We doctored 10 favorite comfort foods and gave each a nutritional boost to make them better for both your body and your conscious.

On this week's episode of the Stronger podcast, we talk to Bulletproof founder and CEO Dave Asprey about what coffee is doing to our health and our brain.

While many people supplement their diets with Vitamin D, too much can cause problems. Complications include excessive urination and high blood calcium levels.

If lactose intolerance or milk allergy is prompting a switch to coconut milk, first take a look at coconut milk versus milk to weigh which is better for you.

NITRO-TECH enhances performance and builds muscle. Yet, it may cause mild side effects like stomach discomfort and serious side effects like kidney damage.

Getting too much vitamin D can cause hypervitaminosis. You can lower your levels by decreasing vitamin D and calcium intake. Prescription drugs can also help.

If you're wondering which oil is best for skin glow and reducing the effects of aging, consider the antioxidant benefits of vitamins A, C and E in rose hip oil.

If you're considering taking a multivitamin supplement for vitamin D and vitamin B benefits, keep in mind that the two nutrients can be safely taken together.

Negative health effects of chocolate include a higher risk of heartburn, obesity and cancer. Also, producers may accidentally contaminate chocolate candies while making them.

It's possible to get adequate nutrition from just protein shakes. But it's also possible to get too much added sugar and not enough of some of the nutrients you need each day for good health.

Researchers don't have a lock on possible causes of tinnitus, but vitamins D and B12 are the only supplements thought to have any link at all to the condition.