Now her former trainer, Pete Geracimo, has spoken out about the situation on Instagram.
"It’s disheartening to read negative commentary and fat-phobic accusations questioning the genuineness of her amazing weight loss," he wrote.
"In my personal experience of working with her through many highs and lows, she always marched to the beat of her own drum on her own terms."
He continued: "She never undermined her God-given talent in any way. She let her incredible voice do the talking, or should I say singing! She never once pretended to be something that she wasn’t. What you saw was what you got. And we all LOVED it!"
Pete said Adele's journey was always about getting healthy:
When Adele and I started our journey together, it was never about getting super skinny. It was about getting her healthy. Especially post pregnancy and post-surgery. When 25 dropped and the tour announced, we had to get ready for a 13 month gruelling schedule. In that time, she warmed to training and made better food choices. As a result, she lost considerable weight and people took notice. Her body transformation was splashed across every media outlet. The attention it generated was mind-blowing.
He also said her "transformation" is not for publicity or anything related to album sales:
Since she moved to LA, it’s been well documented that she underwent some tough personal changes. It’s only natural that with change comes a new sense of self and wanting to be your best possible version. She embraced better eating habits and committed to her fitness and “is sweating"! I could not be prouder or happier for her! This metamorphosis is not for album sales, publicity or to be a role model. She is doing it for herself and for [her son] Angelo.