Tom Jones is a judge on the UK The Voice.
He is also known for his decades of music, creating hit songs such as It’s Not Unusual and She’s a Lady.
The singer, who has reached a grand age of 78, is originally from Pontypridd, Wales.
He has lost a large amount of weight in the past, but how?
Tom Jones lost 2st 7lb in just five months.
The singer cited a diet book named Syndrome X: The Complete Nutritional Program to Prevent and Reverse Insulin Resistance as a key factor in his weight loss.
Tom explained: “I’d recommend it to anybody. It tells you to get back to what we used to eat when we were hunters and gatherers.
“Eat anything that’s natural – meat, fish, veg.”
What is the Syndrome X weight loss plan?
Syndrome X is also known as Metabolic Syndrome, which is a group of different diseases, including diabetes, heart disease and some cancers.
The metabolic syndrome diet aims to reduce the risk of these illnesses, as well as cause weight loss.
Simply, the diet involves cutting down on sugar, artificial sweeteners, trans fats and salt.
Followers of the diet increase their intake of fibre, Omega-3 fatty acids and potassium.
The diet is relatively simple, and is not a crash diet.
During an interview on Radio 2 in 2011, Tom said: “I was putting too much weight on.
“I didn’t think I was going to and I left the working out for a bit, thought I’d keep a check on it.
“But with the Christmas puddings and cakes, before I knew it I was 230lb (16.4 stone) which was 30lb more than I should be.”
Tom added: “I couldn’t get into my suits. That’s when I thought, ’this has got to stop’.”
A 50-year-old woman revealed the keto diet plan was behind her 9.6 stone weight loss.
She shrank to a very petite size 4.
The amazing transformation helped the Reddit user, whose name is Brandiaston, lose 135lbs.
Eating more of a certain food can help you lose weight.
Increasing your intake of fibre will reduce hunger pangs and encourage you to make healthier choices.