When I was eating a low fat diet I used to have episodes of pain about as bad as giving birth diagnosed as a gallstone making an exit.

With some trepidation I started doing low carb Atkins - sure enough, three hours of agony and then - nothing - not for over a decade.

Treating gall stones which can't get out - you have to do low fat or risk permanent blocking of the bile duct, but to not have them - eat the fat normally associated with the foods instead of skimming it off, leaving it on the plate or trimming before cooking.

When you eat fat the gall bladder empties as part of the process of digestion.

The low fat diet so touted as healthy unfortunately goes against the design of our digestive tracts, we were meant to eat fat.