16 . Grilled red meat
This might be a little hard to swallow (get it?) if you love your steak, but excessive consumption of grilled red meat might increase your risk of cancer. Although aesthetically pleasing, high temperatures used to achieve those sexy char marks release cancer-causing hydrocarbons.
Alternatives – Reduce your intake of red meat, and be careful about how you cook it. Pick organic, grass-fed beef whenever possible.