NO JUNK FOOD... BUT NO DIETS TO STAY TRIM

JANE credits isometric exercises for her enviably flat stomach. This is a form of ‘static’ exercise, like yoga or Pilates, in which a pose is held for set periods of time without contracting or lengthening the muscles.

She told an interviewer: ‘With isometrics, you’re isolating and engaging the stomach muscles to strengthen them. I get more out of isometrics than crunches. It has given me really strong stomach muscles and I have a longer, leaner look than before.’

Naturally, she doesn’t eat junk food, either. She said in 2013 that she considered four Maltesers to be a binge — and in 2018 that if she wanted a treat, she would take a single mouthful of key lime pie and leave it at that.

‘I just have one bite and my brain and body are satisfied, knowing we aren’t on a diet but also that we

didn’t miss out. It’s the same way you’d have a glass of Champagne instead of the whole bottle!’

Jane is thought to weigh a mere 8st 6lb. She once told an interviewer: ‘I love berries and other antioxidant-rich foods. We always have fresh fruits and vegetables grown without pesticides. I rarely eat red meat; it’s usually chicken or fish with lots of veggies. I try to keep my sodium intake low, too. Once in a while I’ll indulge but even then it’s in moderation.’

She added: ‘If I have pasta I’ll just eat half of it. I’ve tried all the diets and they are a complete waste of time for me, because any time you say, “I’m not doing this any more, I’m only doing that”, you know you’re going to fail.

‘If you’re really trying to lose weight, just cut out the carbs.’