Also known as vitamin B7, biotin is commonly taken for its perceived beauty benefits. Discover more, and find our expert ...

But if is it too much, you need to find the root cause of hair loss. Hormonal imbalances or scalp conditions such as dandruff ...

While most people don't eat enough fiber, eating too much of it can cause symptoms such as bloating, cramps, and constipation. In some cases, it could also lead to an intestinal blockage. Fiber is the ...

However, too much biotin may cause false positives or false negatives on certain blood tests. As a result, biotin supplements should be avoided before having any lab work done.

In a study published Wednesday in the scientific journal Cell, biologist Richard Young shows that continuously eating too much added sugar causes traffic jams inside cells. And these traffic jams ...

You may have too much vitamin D if you experience stomach discomfort, unusual mental symptoms, or kidney problems. Excessive vitamin D also shows up in a blood test. Vitamin D plays an important ...

Michael Freeman is a founder of, and works at, The Skin Centre, a private dermatology practice on the Gold Coast, Queensland. The Skin Centre provides botulinum toxin injections for axillary ...