> Stats <
Size: 8
Personal Trainer: Torje Eike
Physiotherapist: Torje Eike
Yoga Instructor: Kisen
Weight: 7 Stone (97 lbs)

> Yoga <
"Some people's bodies - like Geri Halliwell's - respond drama-tically and very quickly."

Geri owes her fab body to yoga. She practices such moves as the Crab, the Dog, the Cat and the Cobra. Yoga has helped her to get in tune with her body and streamline her figure. "It keeps me supple and really trim," she says. "I do it as much as I can, and I've lost weight since I started doing it.

"It's given me good abdominal definition and it really helps to relax me. It's fantastic - I love it."

Geri was introduced to the ancient Indian art by the private teacher Kisen, whose wealthy clients include Neil Tennant from the Pet Shop Boys and Hollywood actress Elisabeth Shue. He teaches Ashtanga yoga, which emphasises meditation and breath control rather than the traditional yoga poses. Geri contacted him after leaving the Spice Girls in 1998 and has been seeing him ever since. She looks to him for spiritual guidance as well as fitness tips.

"The general public has absolutely no idea of the tensions that were placed upon her at that time," says Kisen, 42, whose nickname for Geri is Gingernut. "I've talked to her about slowing down, taking life easier, seeing the beauty in ordinary things."

He has devised an individual fitness plan which has left her leaner, wirier and less bulky. "It's not about flexibility," he says. "It's about reaching a greater understanding and acceptance of yourself. It is about strength in the service of wisdom." Liverpool-born Kisen says Geri is delighted by the results. He says: "She once called me to say: 'I've just seen my new video and guess what, Kisen? I look like a babe!'

Geri has learned to perfect Kisen's techniques at home, but also attends the Triyoga centre in Primrose Hill, North London, where fellow devotees include actors Jude Law and his wife Sadie Frost.

>Excersise <
"I'm not one of these women who will ever be naturally thin - I really have to work hard at it."

Geri supplements her yoga with more conventional ways of keeping fit. She runs up to six miles a day, often with her Norwegian personal trainer and physiotherapist Torje Eike. Geri varies her routine with swimming, cycling and visits to the gym.

Torje knows celebrities can rarely go out cycling or running alone and encouraged Geri to buy a bike stand that effectively converts her outdoor bike into an indoor version. He has explained when she should exercise to get maximum results from her programme. Her routine includes warming up, stretching, achieving an aerobic level of exercise, cooling down, strengthening muscles and stretching again. Torje has taken over from Kenny Goss, George Michael's partner, who helped Geri lose a stone after she left the Spice Girls. She also goes to the Buckinghamshire health club where Mel B works out.

"The best way to reduce body fat is to combine exercise with a low-fat, high-carb diet. This will keep you slim for life, the best sources of carbohydrates are sugar-free cereals, bread, pasta and rice." said Torje.

>Diet <
"The trick to having a healthy body is to eat what you want, but in moderation."

Geri has recently followed the controversial low-carbohydrate diet favoured by stars such as Jennifer Aniston and Ally McBeal's Calista Flockhart. But she opted for the more moderate Zone version devised by American biotechnologist Dr Barry Sears. Instead of completely cutting out carbohydrates he recommends a daily food intake of 30 per cent protein, 30 per cent fat and 40 per cent carbohydrate - double the protein and half the carbohydrate that mainstream nutritionists say is healthy.

Strict no-carb dieters would typically eat an egg for breakfast, a rare steak for lunch and grilled chicken for supper. Now on Torje Eike's advice Geri has sensibly included more carbohydrates, seafood and plenty of fruit and vegetables.

She says: "If you really want a flat stomach, you've got to make the effort to find a balance and eat a good, varied diet. You can't deny yourself everything, but at the same time you mustn't go overboard on the junk. I try to eat lots of healthy foods such as salads and fish to keep trim, butI do have a sweet tooth and love desserts - especially sticky toffee pudding or anything with chocolate.

A typical day's food includes:
Breakfast: Wholemeal toast or low-fat bagel with low sugar, high-fruit jam. Muesli with low-fat yogurt and fruit.
Lunch: Jacket potato with baked beans with tabasco.Worcestershire sauce or chilli sause topped with chopped tomatoes.
Dinner: Fillet of fish, grilled with a paste of fresh ginger, soy sauce, lemon juice, spring onions and five-spice powder, with noodles. low-fat rice pudding.

> Beauty <

The old Geri wouldn't have dreamt of leaving the country without a sackful of make-up. But she has pared down her beauty regime to a minimum to look fresh-faced and much younger. "My must-have product is concealer, which I use to cover up any dark under-eye shadows," she says. "It helps make me look more `aliveŽ and I also like pink blusher to add a glow to my cheeks."

Geri's skin is radiant, and she looks healthier with a light tan. But there's no doubt her blonde hair extensions demand high maintenance. Specialist hair-care products now fill the space in her suitcase where her make-up used to be.

> Torje Eike <

A new man is behind Geri Halliwell's dazzling transformation from a bulimic binge eater to an ultra-toned size six. And no, he's not her lover but her personal trainer Torje Eike.

The Norwegian physiotherapist is one of the celebrity world's most best kept secrets. In 1998 model Jerry Hall wrote the foreword to "The Vitality Plan", a book co-authored by Torje. In it, she revealed that she had followed his Total Fitness plan for years to stay in shape. And Torje's co-author was the royal ballets principal dancer Deborah Bull, who confesed to years of yo yo dieting before meeting him.

So what is the secret of his success? As a fitness advisor to Olympic athletes and soccer stars, Torje takes the view that the best way to lose weight-and keep it off-is to combine sensible healthy eating with sensible regular exercise. The key phrase that Jerry Hall and Deborah Bull use in the book is that "losing weight is not about the things you shouldn't do-it is about the things you should do."

Forget about counting calories and starving yourself to stay thin. It doesn't work, as Geri, with her history of binge eating and bulimia can testify. Eating fewer than 1,200 calories a day is bad for your long term health, the book says, and losing weight just by dieting and not excercising will slow down your metabolism.

The books advice contradicts reports that Geri has been following a high-protein diet, which is currently fashionable in Hollywood.

> Injections <

It emerged that Geri has a private nurse who regularly injects a potentially fatal cocktail of vitamins straight into her bloodstream. Her publicist said: "She's under an incredibly gruelling schedule and vitamin injections are par for the course for many artists. It's to boost her energy levels. She's doing 12 to 18-hour days and travelling all over the world."

But nutritionists believe she has resorted to the injections because she has cut fat out of her diet and cannot absorb vitamins properly. They say it is easy to inject too much which, in extreme cases, can kill. Claire MacEvilly, of the British Nutrition Foundation, said: "Where a person has a limited amount of fat in their diet, the fat-soluble vitamins A, D, E and K cannot be absorbed properly by the body. This is why some people who have a low fat intake can suffer from vitamin deficiency. Vitamin injections are an extreme and dangerous fad which has come from America - it is not very popular over here yet and hopefully will not take off.

"Overdosing on the non-soluble vitamins by injecting them is easy to do and is a real concern. It can cause cramps, nosebleeds, nausea, blurred vision, dry skin, liver disease, weight loss, kidney stones and permanent kidney damage. In the most extreme cases it can lead to death. My advice for Geri Halliwell would be to snack on fruit and vegetables throughout the day instead. The injections are a dangerous practice."

And fellow nutritionist Dr Gail Goldberg added: "Injecting means the vitamins get into the bloodstream more quickly but Geri should be getting her nutrition from a balanced diet." However Geri's publicist insisted: "She would not take anything that would harm her. I imagine you would have to be taking them a lot before they would start harming you. If she had blurred vision and cramps then it would be blatantly obvious. She 's healthier and happier than ever. She does not inject herself. A nurse visits occasionally - it's all monitored."

Geri has admitted to cutting out products which contain white flour or sugar and thus excludes staple foods such as white bread and pasta. She also rules out cakes, biscuits and chocolate. She recently said: "My body image can be distorted because of the disease I suffered, so it's best not to examine all of this, for my own sake. I'll try to avoid looking at pictures of myself. I leave it up to my stylists and make-up people and if they think I look OK, I don't worry. I'm taking this a day at a time. Everyone's got their thing, their addiction, and mine's sugar."

Sun GP Carol Cooper said: "I would not recommend vitamin injections for anyone. Most of us can get all the vitamins we need from food. Clearly, Geri is not eating very much so she may well need extra vitamin supplements but she could take them by mouth. Taking too many vitamins can be extremely bad for you. Vitamin A can damage the liver, vitamin D can give you kidney stones and vitamin E can make you bleed too easily. Vitamin injections are a craze.

"If things are injected you feel they are working better but it's more dangerous because you have got all the risks associated with injecting such as bruising and bleeding. I wouldn't want anyone to think Geri Halliwell is going to die, but overdosing on vitamins can be as dangerous as overdosing on aspirin. It can lead to death through convulsions brought on by high calcium levels. If you are eating a diet which is so low in fat that you are not getting enough vitamins then something is seriously wrong with that diet."