Sam Smith says this is the worst thing you can say to him

Sam Smith says he is changing his unhealthy obsession with food. Photo/Instagram

Sam Smith has flip-flopped on whether or not he sees himself as a spokesperson for gay rights.

That ended for good last month, when he announced in an interview with The Observer that he planned to set up his own LGBT charity to help those oppressed in other countries live as freely as possible.

He aims to fund the project by donating money earned from a series of concerts he's set to perform.

But in a recent interview with 60 Minutes, the singer admitted that he is personally more affected by derogatory comments about his weight than those about his sexuality.

"If someone called me fat, that affects me way more than someone calling me a f*****," he said.

"I think just because I've accepted that, if someone calls me a f*****, it's like, I am gay and I'm proud to be gay so there's no issues there. But if someone calls you fat, that's something I want to change."

"From a young age food has controlled me," he added elsewhere of his relationship with food.

"When I was at school and wasn't having a great time or when music wasn't going very well. I would eat, eat. Eating would make me feel better; when I felt lonely, I would eat."

Smith recently revealed the effects of his 6kg weight loss in 14 days via a series of posts on Instagram.

He credits nutritionist Amelia Freer, who advised him to follow a diet free from gluten, sugar and processed foods, for the change in his appearance. He also exercised a lot.

"Three weeks ago I met a woman who has completely changed my life," he wrote alongside one of the pictures. "Amelia Freer has helped me lose over a stone in 2 weeks and has completely transformed my relationship with food."

"It's not even about weight loss it's about feeling happy in yourself. Love you Amelia & thank you for making me feel so happy inside and out @ameliafreer #eatnourishglow'"

Smith came out publically last year, after announcing that his album In The Lonely Hour was about a man he fell in love with.

- Independent