We all know the importance of eating our greens to make sure we get enough vitamins and minerals to keep our body healthy.

However, Queen of Pop Madonna apparently took to injecting vitamin B12 to boost her health, which was voted No 8 in the list of most ineffective health fads.

Aviva's study, which questioned over 1,000 women, found that three quarters (79%) use alternative health treatments favoured by celebrities, yet declared many a waste of money (92%) and having no medical value (93%).