Now in the maintenance stage, Adele’s breakfast options could include choc chip granola with pecans and jumbo oats or apple pancakes with blackcurrant compote.
Lunches are said to feature turmeric, chicken and kale salad, or baked potato and chickpea stew while the dinners may include chargrilled beef with red wine jus and onion rings, garlic kale and herb roasted potatoes.
However, nutritionists have warned that the extreme programme could actually lead to more weight gain in the long term.
Dietitian Emer Delaney told the BBC: “At first glance, this is not a diet I would advise for my clients.
“Having a glass of red wine or a small amount of chocolate occasionally won’t do us any harm – I wouldn’t recommend them on a daily basis. We should also be eating a mixture of different fruits and vegetables and not just those on the list.
“In terms of weight loss and boosting metabolism, people may have experienced a seven-pound weight loss on the scales, but in my experience, this will be fluid. As soon as people return to their regular eating habits, they will regain the weight.”