I'm mainly a vegetarian, eating meat no more than thice or three times a week. I love vegetables, grains, pasta, rice etc. But I also like meat, fish, cheese, milk and occasionaly I indulge in a mixed fried fish at the local restaurant.
But I live in a place where the majority of people aren't vegetarian. They've never been probably because their ancestors were mainly shepherd's and hunters or fishers on the coast.
Where I live there are areas where some people live longer than 100 years. Many scientists have been there to conduct their research. These people have lived on sheep meat and sheep milk cheese, eggs, wine, bread and some pasta all their lives. Not many vegetables, though.
I'm not aware of evidence about a longer life expectancy for vegetarians and vegans. Can anyone help?
I certainly agree about rejecting processed food, such as ready made lasagna or burgers, cookies and yucky greasy food in general.
Nor I agree with supplemented "healthy food" and the low carb craze, the low fat fashion (from cheese to mayo, from yoghurt to milk) low whatever, according to what marketing gurus and the food business decides.