Adele has shared a photo on Instagram to celebrate her 32nd birthday - and it revealed her reported 100lb (7 stone) weight loss.
The iconic singer, who rarely uses social media, prompted numerous conversations over her major physical transformation.
Among them was a segment on British breakfast show This Morning, during which one interviewee speculated that Adele lost the weight on a 'plant food' diet.
This Morning host Philip Schofield spoke to Steve Miller - who he described as 'an expert in diets', and said that any discussion is speculation, but many believe Adele followed the SIRT Food diet.
According to Miller, this is a 'plant food' diet, which centers largely on so-called 'SIRT' veggie foods including kale, strawberries, turmeric, parsley, dates, walnuts, and red wine among others. It doesn't focus on eliminating foods, but instead on making sure meals are based on this specific group of plant foods.
The diet offers dairy-free options for every meal, and while it is not known whether or not Adele eats dairy products, according to multiple reports, some time around 2011 or 2012, she stopped eating meat, telling BBC Radio: "Whenever I’m about to eat meat I always see my little dog’s eyes."
Another interviewee, Vanesse Feltz, who herself has lost major amounts of weight in recent years said Adele's transformation could be a result of stress following her divorce from husband Simon Konecki.
Feltz said: "She's broken up from her marriage to her husband. It may be what they said, a 'revenge bod', it may well be that she's been terribly upset and hasn't been able to eat.
"She's lost her appetite maybe for once in her life and has felt really very, very emotionally drained and not her normal self."
Adele has not publicly commented on her weight loss, apart from in the caption of an Instagram post from October last year, where she suggested she had ramped up her exercise regime, writing: "I used to cry but now I sweat."