A UK health and fitness expert has slammed the diet Adele's former trainer credits with the star's weight loss, saying no credible trainer would recommend such a drastic calorie restriction.
Earlier this week, Pilates instructor Camilla Goodis told The Sun she helped the 'Hello' singer get into exercise, and said she believed a drastic change in diet - from consuming around 2000 calories a day to 1000 - would have led to the star's dramatic weight loss at the end of last year.
But personal trainer and nutrition expert Alice Liveing, who has a regular column in Women's Health as well as over 600,000 followers on Instagram, took to Twitter this week to slam Goodis' comments.
Liveing says to praise a 1000 calorie per day diet is both unrealistic and dangerous, and Goodis has probably betrayed Adele's trust.
"For the record, no credible trainer would agree to their client eating only 1000kcals a day.
"No credible trainer would suggest green juices to be the elixir of good health," she wrote, linking to the original article with Goodis' comments.
"No credible trainer would/should share this confidential info for their own gain."
Liveing also suggested Goodis did the interview without Adele's permission.
"I have trained celebrities in my time and when asked in interviews about said clients, I have always remained silent because of client confidentiality, their privacy and the fact that that is their information to share, not mine."
"These 'so called' celebrity trainers need to realise that putting someone on a 1000 calorie a day diet and an intense workout regime doesn't make them a good trainer.
"It makes them the instigator of seriously disordered eating."
Liveing has previously spoken out about how weight loss should not always be the goal when it comes to exercise, citing increased mobility, mental health benefits and a sense of community as some of the major goals.