( CNN ) Sam Smith does not want his weight to `` Stay With Me . '' The Grammy-winning singer has shed 14 pounds and is crediting author Amelia Freer with his new slimmer look . Freer is a nutritional expert and writer of the book `` Eat . Nourish . Glow . '' Smith gave her a shoutout on an Instagram photo that shows his weight loss . `` Three weeks ago I met a woman who has completely changed my life , '' he wrote . `` Amelia Freer has helped me lose over a stone in 2 weeks and has completely transformed my relationship with food . '' Freer said she decided to dedicate herself to helping people change their lives via healthier eating years ago , when she was working as an assistant to Prince Charles , according to the Daily Mail . `` I used to arrive home exhausted ( not because of the job , it turns out , but because of my terrible diet ) , with no energy to cook , so I would have cheese on toast or a plate of pasta with a glass of wine , slumped in front of the TV , '' she said . `` I was tired all the time . My tummy looked and felt like a football most days , and I still had acne . I took several courses of the acne drug Roaccutane , and that 's when my body said , 'Enough ! ' `` After visiting a nutritionist and learning about the effects of food on the body , Freer decided to become one . Smith has been open about his struggle with weight , even touching on it during a speech in February after one of several Grammy wins . `` Before I made this record , I was doing everything to try and get my music heard , '' Smith said . `` I tried to lose weight , and I was making awful music , and it was only until that I started to be myself that the music started to flow and people started to listen . ''
The Grammy-winning singer shed the weight quickly . Hide Caption