The photo with size 8 sister that made the 21 stone woman lose half her body weight SWNS

A wedding photo of two sisters prompted one of them to lose half her body weight and drop from a size 24 to a size 10.

Sarah Hart had a joint wedding with her sister Amanda and was so large she had to have her wedding dress custom-made.

The mother of two said: "My dress was absolutely huge. I was stuck in a size 24, while my sister effortlessly slipped into a stunning little dress."

"My size was always in the back of my mind, but I was in denial at the time, because I was in love and happy."

"Looking back at the photos, I'm shocked. The weight just crept up on me. I used photos like my wedding snaps as motivation tool. I stuck them to my fridge to scare me away from snacking."

The 30-year-old had gastric band hypnosis, which tricks the mind into thinking a gastric band has been fitted.

Sarah was able to lose more than 11 stone over a two year period after the £800 session at the Elite Clinic in Marbella, Spain. She now weighs just 9 stone 12lbs and ran a half marathon recently.

The photo with size 8 sister that made the 21 stone woman lose half her body weight SWNS

She said: "I feel so much much better now. If i want chocolate, I eat chocolate, but just not five bars of it. And I can't eat too much because I feel full, so I eat smaller portions."

"Now I will have cereal or porridge for breakfast, a light lunch and then a bit of meat and salad for tea."

"When I was fat things were difficult for me. I couldn't even do the housework without feeling exhausted. I even fell out with my sister for two months because she told me I was too fat. But they say the truth hurts."

'I would love to head back to Cyprus with Lee [her husband] to renew our vows. Now I'm a size 10 and completely happy with my figure."

Do you think gastric band hypnosis is a better idea than surgery or not? Let us know below...

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