Celebrity diet secrets

Celebs - we want to look like them, dress like them, even smell like them - and now we can eat like them too. After all, if you can't be famous, there's no reason you can't act famous instead...

If (like us) your celebrity obsession reaches to wondering about the contents of their fridges and what they really eat to stay looking trim, then you're not alone.
 Thanks to Beyonce and Jennifer Aniston we're all guilty of contemplating bottles of maple syrup and jars of babyfood at Tesco - and there's nothing like a celebrity aside to spark a worldwide wave of fad dieting.
 As much as we pretend not to give a hoot about celebrity diets (as we tuck into another bar of choc) we are inwardly curious.
 What do they really eat? Do they eat anything at all? And are celebrity diets easy to stick to?
We've rounded up some of our fave A listers and found out which diets they're doing. Plus we've enlisted the help of nutritionist Dr Aubry to find out how more about celebrity diet secrets...

Scarlett Johansson's low-calorie diet

Scarlett Johansson is famed for her curves but the star lost a few pounds to squeeze into a leather catsuit for her role in Iron Man 2.

Miss Johansson denies loosing silly amounts of weight but admitted to going on a low-calorie diet based on white meat, vegetables and regular work outs.
Nutritionist Dr Aubry says: "A low-calorie diet guarantees weight loss without the risk of putting weight back on afterwards. The advantage of this diet is that it allows the dieter to adopt a healthy attitude towards food for years to come.
Risks: "For a time, low-calorie diets can make the dieter feel famished."
Top tip to pinch from Scarlett: Fruits, vegetables and starchy foods... these form the basis of a healthy diet, for losing weight without the risk of deficiencies. Don't forget to retain a bit of fat in your diet... the body needs fatty acids. Glowing skin and hair depend on it!
 Best not waste those biscuits then..

Rihanna's Atkins diet
Rihanna has the type of womanly curves we dream of, teamed with a toned body that almost puts us off the gym - but her gorgeous bod' is also down to eating well.
In the past Rihanna has tried the famous (but controversial) Atkins diet.
Basically Atkins equals zero carbs but there are no restrictions on fats. In a word, a diet that's guaranteed to be very rich in cholesterol.
Nutritionist Dr Aubry says: "The Atkins diet is completely unbalanced and very dangerous, even though it's been reborn in recent years under the name "Low Carb" diet - it actually eliminates carbohydrates, meaning that fruits can't be consumed and yet fats can. Not good."
Risks: "With the Atkins diet there is a distinct lack of vitamins and it's disastrous for cholesterol levels."
Top tip to pinch from Rihanna: This diet is to be avoided at all costs. If you want a body like Rihanna then head to the gym instead. No short cuts here. Boo.

Kirsten Dunst's alkaline diet

It's difficult to believe that Kirsten needs to go on a diet... But with exercise not really being her thing, Kirsten has tried the alkaline diet.
 This is pretty popular in celebville. There's no need to dig out your chemistry schoolbooks though, this regime consists of rebalancing the diet (which is often too rich in acidic products like processed food, red meat, chocolate, etc) and prioritising alkaline foods (fruit, vegetables, green tea).

This not only helps to lose weight but can also boost skin's radiance.

Nutritionist Dr Aubry says: "It's an original diet but completely acceptable from a nutritional point of view. More than a pure weight loss plan, it's above all a rebalancing diet that has everything to ensure good health."
Risks: "It's not dangerous at all because it doesn't cut out any category of foods. Everything being a question of balance, there's no risk of deficiencies."
 Top tip to pinch from Kirsten: This diet is popular with a number of celebs because it allows them to adopt a healthy attitude towards food. Plus it sounds pretty cool.

Gisele is a fan of Martha's Vineyard Diet Detox. 

This incredible diet promises weight loss of 21 pounds in 21 days (around 10kg) - although we're not sure Gisele has ever had that much to lose!
This is essentially a liquid detox where you can drink vegetable stock, herbal teas and a few fruit juices.
 Nutritionist Dr Aubry says: "A detox can do a lot of good. But be careful, it's a question of duration. This one is for far too long! It should last 2 days absolute maximum, although 1 day is even better.
 "Over a short period of time, it's not too unbalanced: vegetable stock provides trace elements while fruit juice provides sugar, and all of it will purify the body. We have a tendency to overeat these days, so an occasional detox can be really beneficial."
 Risks: "The main risk is fatigue. It's very important to avoid any exercise on the day you do this detox so that you can rest. Also limit the amount of liquid ingested to 2 litres max a day so you don't put strain on your kidneys."
 Top tip to pinch from Gisele: Go ahead and detox but limit it to one day a week only.

Kate Hudson's high protein diet
For Kate Hudson, the problem of post-pregnancy weight was quickly dealt with. Following her last pregnancy she lost 27kg in... 4 months! Of course giving birth may have helped...
 She also benefited from a high protein diet and regular exercise.
 Nutritionist Dr Aubry says: "High protein diets are very effective when they're carefully followed. They don't allow for any bending of the rules, not even the slightest, seemingly harmless infringement. A single tomato can ruin results."
 Risks: "It can be very dangerous in the event of heart or kidney failure. But generally speaking, it's a diet that shouldn't be followed for more than two weeks."
 "If you've just had a baby the body is trying to re-establish a balance and avoid deficiencies, so this diet isn't ideal for sensible post baby weight loss."
 Top tip to pinch from Kate: Because the weight loss is so spectacular in the short term, high protein diets are ideal for anyone who has decided to take themself in hand and wants a good, quick result. It's a good starting point, but take care throughout the stabilisation phase.

Madonna's macrobiotic diet
Madonna is proud to show off her sculpted figure which she has worked hard for over the years, and in terms of her diet she's just as strict, opting for a macrobiotic diet.
 It's a predominantly vegetarian diet that's based on the principles of yin and yang. Expect lots of whole grains with vegetables and legumes. Too strict? Not for Madonna.
 Nutritionist Dr Aubry says: "The macrobiotic diet is a very zen, philosophical attitude towards food, and can help keep weight consistent.
 Risks: "I would say that there aren't any. It's a 100% healthy diet that's based on healthy foods for the body, mostly cereals and vegetables.
 Top tip to pinch from Madonna: The idea of a stabilising diet over the long term is good. By cutting out meat and limiting the amount of fatty foods, this type of diet will inevitably have a slimming effect. There's no secret, the winning trio is cereals, fruits and vegetables.

Megan Fox's vinegar detox diet
Megan Fox looks incredible in lingerie ads for Armani, but (irritatingly) she freely admits to avoiding the gym and eating her fave foods as she pleases.
 Apparently her secret lies in a cocktail of water and apple cider vinegar that she sips every morning for its cleansing, slimming and complexion-improving properties.
 Ok so it's hardly mouthwatering, but if it works, we could be convinced, right?
Nutritionist Dr Aubry says:"Unfortunately, cider vinegar doesn't have any particular slimming properties. So if that does her any good, it's only because she believes that it does.
 Risks: "She isn't really risking a lot apart from the very acidic nature of the vinegar that might lead to stomachache after a while."
 Top tip to pinch from Megan: Ditch the vinegar and instead opt for lemon juice in a glass of warm water in the morning. It's really cleansing for the liver.

Natalie Portman's vegetarian diet
Natalie Portman owes her slim figure to her convictions. A hard-line vegetarian, she likes "to eat things that have not been killed."
 She even became a vegan in 2009 in reaction to the scandals involving American industrial food production.
 Nutritionist Dr Aubry says: "A vegetarian diet isn't unbalanced. We don't need meat, just as long as our diet is varied.
 "A vegan diet, on the other hand, seems too restrictive to me: I'd prefer to keep dairy for calcium. It's very important."
 Risks: "Whilst people can survive without meat, they must nevertheless remember that it's the main source of iron in the diet and it can't be found in the same proportions in vegetables.
Those following a vegetarian diet should therefore consider taking iron supplements from time to time."
Top tip to pinch from Natalie: Vegetarians can have some delicious, balanced and creative dishes based on whole grains and vegetables. There's no need to eat meat!