Selenium supplements

Getting too much selenium could be bad for you.

It’s a naturally-occurring trace mineral found in soil and many foods, and is essential, in small amounts, for good health.

A healthy level has been shown to enhance male fertility.

It also has anti-viral effects and provides some protection against prostate, lung, colon and bladder cancer.

But a new study finds that too much of it could raise the risk of type two diabetes.

Researchers say most of us get enough selenium naturally, and shouldn’t be taking supplements.