Sam Smith Drops More Than 14 Pounds in 2 Weeks — Find Out Why!

Sam Smith is slimming down.

The 22-year-old "Stay With Me" singer posted a black-and-white photo of himself sporting a slimmer figure and revealing how he shaded 14 pounds in just two weeks. In an Instagram post, Smith said he owes his new dietary lifestyle to Amelia Freer, a nutritional therapist.

"Three weeks ago I met a woman who has completely changed my life. Amelia Freer has helped me lose over a stone in 2 weeks and has completely transformed my relationship with food," Smith captioned a photo of himself holding Freer's book "Eat. Nourish. Glow."

He continued, "Everyone go check out her incredible book, and start to live healthy. 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."

The Grammy-winner has been documenting his weight loss journey on Instagram, sharing photos of his food. Smith has also stepped up his workout routine, posting a photo of himself surrounded by weights, with the caption, Gym is kicking my ass today."

Freer is a qualified London-based nutritional therapist. According to her website, she follows a "gluten, dairy, and refined sugar free" diet and helps her clients to create "a dietary and lifestyle plan suitable for the individual's circumstances with the aim of addressing their health goals."