B12
Best for: Boosting energy
Celeb fan: Madonna
While Madge takes the extreme measure of injecting B12, experts recommend taking capsules of the energy-giving supplement instead. “There’s no reason why injections should be any more beneficial than supplements,” says nutritionist Claire Williamson.

Ginseng
Best for: Young-looking skin
Celeb fan: Cheryl Cole
Packed full of magnesium and B vitamins, Cheryl Cole’s been popping Ginseng pills to keep her looking fresh-faced for judging duties, alongside Botox fans Dannii Minogue and Simon Cowell.

Omega-3
Best for: A flatter tummy
Celeb fan: Elle MacPherson
New studies show that fish oil supplements such as omega-3 can help suppress the appetite and encourage the body to shift fat around the mid-section.
“They’re great for helping your body burn fat,” says celeb trainer James Duigan. “Especially around your stomach and waist.”

Cod liver oil
Best for: Shiny hair
Celeb fan: Gwyneth Paltrow
Packed with DHA, EPA, vitamin A and vitamin D, Cod Liver Oil is the perfect boost for dull hair and nails.

Vitamin E
Best for: Healthy skin
Celeb fan: Liz Hurley
Vitamin E is excellent for the maintenance of healthy skin, a healthy heart and blood cells. It’s also known for reversing and preventing the signs of ageing, as it is also a very strong antioxidant.

Zinc
Best for: Faster metabolism
Celeb fan: Cindy Crawford
Zinc aids the metabolism, making it work faster and harder, making it easier for you to lose weight quicker.