People should not be fooled by detox diets and supplements which promise to make them feel healthier after overindulging during the festive period, a Government chief scientist claims.
Andrew Wadge, from the Food Standards Agency (FSA), said drinking water, taking exercise and eating home-cooked food can all help improve health.
In his online blog, he writes: "There's a lot of nonsense talked about 'detoxing', and most people seem to forget that we are born with a built-in detox mechanism. It's called the liver."
Dr Wadge also advises people that they have better alternatives to buying detox diet products or supplements.
He said: "First, drink a glass or two of water (tap is fine, cheaper and more sustainable than bottled), second, get a little exercise - maybe a walk in the park - and third, enjoy some nice home-cooked food.
"So my advice would be to ditch the detox diets and supplements and buy yourself something nice with the money you've saved."
On his blog homepage, which is reached via the FSA's main website, Dr Wadge says he wants to use his internet page to show people the importance of good science in their daily lives.