I don’t know what ‘Death by food pyramid’ is but it sounds like a joke. I don’t know many people that truly eat the government’s food plate, which is actually very healthy.
I watched a YouTube video about a British woman who yo yo dieted and believed she had a ‘slow metabolism’ and that was why she couldn’t lose weight. She had her metabolism tested and it was normal. I’m not advocating crash diets by any means, but people may have success with just moving more and cutting out soda (or whatever).
Diet recovery is great for some people, for others it might make things worse.