71-year-old singer, Tom Jones, has decided to slim down, and has lost more than two stone in just five months.

His new slimline shape is all down to a healthy eating plan known as 'the Caveman Diet', which advocates fresh raw foods over carbohydrates.  He also stopped drinking a bottle of wine with dinner each night.

Jones told Radio 2 DJ, Chris Evans:  “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.”

With help from a dietician and the US diet book, ‘Syndrome X: The Complete Nutritional Program to Prevent and Reverse Insulin Resistance,’ he overhauled his diet.

Jones explained the diet:  “'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.”

He also gave up drinking for two months.   Aside from the bottle of wine with dinner, Jones says, “'What I didn't tell him (dietician) was I'd started off with a martini, had a cognac and a bottle of champagne too.”

See Tom Jones on BBC's Top Gear in the video below: