This might have been posted elsewhere in here: there was a recent study where 11 obese diabetic people were put onto a medically supervised 600 calorie a day diet to reverse Type II diabetes - it was successful for all of them at the end of the trial, with their pre-breakfast blood-sugar levels returning to normal within
one week of beginning the extreme restriction. Three months on, seven of them were still completely free of diabetes.
I can't link yet but it's the first few results for the search terms
diabetes 600 calories - methinks if that level of very low restriction was going to totally nobble their "metabolism" (a much abused word, hence the quotation marks
) then their doctors would never have suggested it for obese people who, by definition, their doctors will be trying to support in their weightloss. It would be
highly unethical to slow weightloss in that way IF there was a medically recognised link between a VLCD and long-term effects on the metabolism, and that kind of thing is assessed before any medical trial.
Just another bit of medical-based debunking of the "starvation mode"/metabolism myths, and OBVIOUSLY anyone with diabetes or any health concerns should seek qualified medical help and supervision before making such a drastic change to their diet, these people had supervision and were no doubt fully monitored throughout to check there were no adverse effects on their heart muscle, etc.