Lisa Ashworth, 33, an accountant from Guildford, has watched her weight creep up for the last two years. We sent her on a seven-day New You Body & Soul Boot Camp with a seven-week follow-up programme.

Lisa’s ‘Before’ Body

Height: 5ft 1in

Weight: 11st 1lb

Size: 14/16

Lisa’s weight is higher than average, partly due to muscle, but also to excess fat,’ says InBody expert Glynia Wedekind. ‘She needs to reduce fat bt eating 1,500 calories a day and doing fat-burning cardiovascular exercise.’

Lisa’s ‘After’ Body

Weight: 10st 4lb

Size: 10/12

What Lisa Says

Two years ago, I was just over 9st and a size 10, I would run 12 miles at the weekend and go to the gym on weekdays, which is how I got away with eating junk, like pizza. Then we moved house, I stopped running and started putting on weight.

I try to eat healthily: muesli, yoghurt and fruit for breakfast and a skinny latte on the way to work. I have soup and a cheese and pickle sandwich for lunch, and homemade moussaka or breaded chicken and veg for supper. But I have a weakness for office treats. Most afternoons, I’ll have two chocolate hobnobs and two m&s mini bites, plus a krispy kreme donut. At home, I snack on cheese and crackers or handfuls of kettle chips before dinner, then eat a bag of haribo afterwards. I still go to the gym four times a week, but the weight is hard to budge.

Lisa’s Programme

New You Boot Camp’s new Body & Soul Week (newyoubootcamp.com). The programme is 12 hours of military physical training a day and a 1,500 calorie diet. Afterwards there are follow-up workshops and you’re given a DIY programme- Lisa’s was three cardio and two weights sessions per week and a diet of no wheat, dairy, sugar or caffeine.

Lisa’s Verdict

I made it into the fittest group on the first day at boot camp, but my excitment soon dissapeared when the military trainers said they were going to work us until we bled.

We started with running at 6am, followed by weight exercises and military circuits. By day two, my muscles were so sore, I couldn’t even walk up the stairs. Day four was the hardest, I was cold, hungry and nauseous. But after a morale-boosting chat with the group, I decided not to give up.

The meal portions were tiny and I craved sugar. A typical days eating was one Weetabix with oat milk for breakfast, tuna salad for lunch, and lentil and squash soup followed by roast chicken with cauliflower mash for supper. By the end of the week I was delighted to find I’d lost 7lb.

At home, the toughest rule was no snacking. But upping my protein levels helped me resist office binges. And I could eat three filling meals each day, like scrambled eggs on rye bread.

I am also enjoying running again. I did a half marathon at the end of eight weeks and beat my fastest time from two years ago. I feel much healthier.*