Woman loses 12lb in seven days on potato diet - but there's a serious catch 1 week ago

Woman loses 12lb in seven days on potato diet - but there's a serious catch

"Crash dieting is frowned upon by many health professionals."

We all know someone who'd happily tuck into a bowl of mash or a baked potato every - but could they go for a whole week eating nothing but spuds?

One woman tried just that - and ended up losing almost a stone.

Woman loses 12lb in seven days on potato diet - but there's a serious catch

Charmaine, a participant on last night's episode of How To Lose Weight Well on Channel 4, ate only potatoes for seven days.

The diet allowed her to eat boiled, baked or mashed potatoes seasoned with herbs, spices and oil - but chips and sweet potato were banned.

Charmaine was initially up for the challenge but after a few days admitted that she was getting bored.

"I’m literally sick and tired of potatoes!," she said.

"I'm really bloated. I'm going to turn into a potato by the end of this."

After a week, she was weighed and it was found that she had lost 12lbs on the diet, going from 12st 4lbs to 11st 6lbs.

Woman loses 12lb in seven days on potato diet - but there's a serious catch

The results may look miraculous but there is a catch - the diet could prove to be very bad for you.

Crash diets, which promise significant weight loss in a short period of time, are generally disapproved of by doctors because they can be seriously harmful on the body.

The show was criticised by a number of viewers for promoting extreme dieting.

The main issue with only eating one food is that you're unlikely to get all the nutrients you need.

"A diet of just potatoes will be deficient in vitamins A, E and K, the minerals calcium and selenium, essential fatty acids, protein and dietary fibre," nutritionist Fiona Hunter told the BBC.

"Although they may provide enough iron for a man, they will not provide enough iron for women."

Host of How To Lose Weight Well Dr Xand van Tulleken warned that diets like the potato one could be bad for your health.

"Do remember that, although popular, crash dieting is frowned upon by many health professionals for being unbalanced and losing a lot of weight quickly can be dangerous and might not offer long-lasting results."