Two new medical studies suggest coffee is the latest substance which can help to prevent cancer

Scientists in Japan found that women who drink three or more cups a day can halve their risk of colon cancer; and researchers in the US concluded that combining drinking coffee with regular exercise can help to guard against skin cancer.

We are bombarded almost daily with new claims about what we should and should not eat and drink to keep us healthy, so who should we believe, and what is the right advice?

Inside Story looks at the evidence.

Watch this episode of Inside Story here: