Yeah I'm thin too. I don't like criticism of weight, big or small.All the diet stuff is definitely bullshit. The eating advice sounds like how people thing you need to eat to be skinny.
I am thin, have been my whole life apart from when I put weight on after my kids which I've lost now. And I eat bread. Ok not very often, but I have carbs with my dinner every night. The longest fast is 24 hours and that's because I've forgotten to eat. I do drink Bovril though. And I never eat salad, pointless food, there's much more satisfying food you can eat that won't make you fat.
All that week long fasting tit was total bullshit. Either aanorexic looking for and getting affirmation or a fantasist that thinks that's what life's like if you're in control of your appetite.
The only 'diet' I pay attention to is if I'm getting enough fruit and vegetables/not overdoing it on alcohol/getting enough water