Keith Sorrell is living proof that man can live on Mars – he’s eaten nothing but the choc bars for 17 years.
Keith, 37, munches a dozen a day for his breakfast, lunch and dinner.
He gets through more than 4,000 a year – even having Mars Bar drinks mixed with vodka or rum when he goes to the pub.
Single Keith said: “My love of Mars Bars started at school with one or two between meals.
“All my pocket money went on them and one day I realised I couldn’t get by without them.
"Now I can easily polish off 12 a day, more at weekends. I’m totally addicted.”
The 14st printer went on: “When it’s mealtimes for other people I normally eat two or three Mars, and I’ve always got a bar handy at work.
“I’m big into the Mars drinks as well. There’s nothing better than mixing them with vodka at the weekend. People say it’s bad for me but I drink lots of orange juice and take vitamins. I haven’t changed my diet for 17 years and my health is fine.”
But experts warned Keith, from Walton, Liverpool, was increasing his risk of heart disease, cancer and bowel problems.
Anne Sidnell, of the British Nutrition Foundation, said: “It’s amazing how he’s survived this long, but he could be the exception and live to 80.
“He seems to get enough vitamin C and the bars could provide enough calcium and protein. But he’s missing out on fibre, which will have an effect as he ages.”
A spokesman for Mars said: “We encourage people to enjoy chocolate as part of a balanced diet.”