Sir Anthony McCoykept his wiry frame in shape for years with a punishing routine involving very little food, b ut after decades of making the weight he has confessed a weakness for chocolate biscuits in front of the television.
The now-retired 20-times champion National Hunt jockey has indulged in a chocolate habit and put on two stone since hanging up his riding boots.
He said: "There's nights I would eat the whole packet...it is not something I am proud of. For someone that had pretty good willpower it is not anywhere near as good as it used to be."
McCoy weathered around 1,000 falls and multiple broken bones with little long-term effect.He underwent blood tests which showed he was largely healthy.
However, the check at Randox Laboratories healthcare company - the new sponsor of the
Grand National at Aintree - flagged up his cholesterol level and raised the spectre of diabetes which runs in the family.
But he joked: "Maybe I need to come out of retirement just to get myself back, get my diet back to a more healthy lifestyle, even though people thought it was unhealthy."
McCoyretired in 2015 after a record-breaking career which amassed more than 4,300 jumps winners.
He was tall for his sport, at just over 5ft 10in, and endured hot baths, saunas and near-starvation rations as he kept his weight down to about 10st 3lb. Naturally he would be nearer 12st.
"When I was racing I was unhealthy looking. Everybody tells me now I am healthy looking but yet there are things I need to keep an eye on like my cholesterol, the possibility of diabetes.
"I spent all my life dieting but it is something I actually do need to (do).
"Because my body was so used to that I cannot really let my lifestyle change too much.
"I am two stone heavier than I was a year and a half ago."
Throughout his career he had regular health checks.
"The biggest problem that we have in the world is that most of us only go to the doctor whenever we are ill. Prevention is so much better than any cure."