Madonna
reportedly shocked fellow passengers on a recent transatlantic flight
when she started injecting herself with vitamins instead of eating any
food.

The singer, who turns 49 today, was travelling back to London from
her recent trip to New York and was seen refusing offers of food during
the journey.

An onlooker told Closer magazine: gSeven hours was a long time to go without eating. Madonna was quiet, talking to the air staff only to ask for bottled water.h

gJust before landing, she brought out the phials of vitamins and injected herself.h

The vitamins, believed to be B6 and B12, are said boost energy levels and have been used by the likes of Britney Spears and Geri Halliwell
in the past to give them a boost before gigs. However nutritional
experts claim theyfre unnecessary and potentially dangerous for
otherwise healthy individuals.