The solution to weight loss if you are 241kg is cutting calories. It's simple stuff.
Sorry, I'm baffled by the math here. Is that a typo for 241 lbs? Because 241 kg = 531 lbs. According to this study:
https://pubmed.ncbi.nim.nih.gov/34264558 about the prevalence of obesity in Russia, a BMI of over 30 would be considered obese, and that the majority of females who fell into this category in their study were middle-aged women in rural areas, not teenage girls in cities. Say the woman was my height, 163 cm, then a BMI of 30 would be about 79.3 kg or 175 lbs. (My BMI is 19, but that's not relevant here, just shows the range the authors of the study used.)
How many girls weighing 531 lbs are they going to be able to find for the show? That's the size of someone you read about who has to be taken to the hospital, so firefighters have to break down an outer wall of a house to winch the person out of bed and onto a reinforced truck for transport, because they couldn't get out of bed and couldn't fit through the doorway of their bedroom. (I know the whole BMI idea has its detractors, but it was used in the Russian paper and I was using the numbers to extrapolate poundage or kilograms.)
Just curious about the numbers, in an academic sort of way.