@sampo It's absolutely not healthy. Obesity is a spiral and a mindset: the fatter you get, the hungrier you get. This means nobody confronts it until they hit some kind of breaking point, and then they just went a quick solution - they want to expend willpower for a brief burst, like doing a uni assignment, instead of making the habitual changes needed to conquer overeating.

Even most people who lose weight "normally" fall into this trap. They go for bullshit fad diets and when people who understand nutrition try to educate them, they view it as naysaying and block it out. Losing 1 kg/week is pretty much the safe limit, yet you'll still see people flex about how they lost weight three or four times that fast (for a brief period) before inevitably crashing / backsliding.

Celebs could easily afford nutritionists and personal trainers. It's all mindset.