After years and years of yo yo dieting/fasting diets etc. I'm reading a lot lately about how that damages your metabolism and how to eat to boost your metabolic rate..However after falling hook line and sinker for so many diets how do I know whether to believe this?Is it just the latest fad or is it for real?Can you really boost your metabolism by eating breakfast and exercising more or is your metabolic rate largely genetic?Can you 'repair' the damage caused to your metabolism over the years or does your metabolism just return to its own natural rate once you finish a fad diet?
I'm just thinking that if every diet decreases your metabolism and makes weight gain easier,surely all models would be fat?I am very 
What are your views?