Although I am not even vegetarian I do find that people are surprised at the amount and variety of plant based foods I eat - I would not wish to eat toast for breakfast even if it did not contain so many carbs as it has so few nutrients.
In the warm weather I was eating large salads every day, walnuts coleslaw celery cucumber sweet pepper tomato beetroot radishes a bag of mixed salad with oil and vinegar dressing. I regularly make stirfries with sweet pepper courgette aubergine, the outer stems of celery mushrooms onion beansprouts - I have probably forgotten some things as I keep the fridges fairly well stocked.
If I could get enough nutrition from plants I'd be perfectly happy to do so most of the time, but I can't - and having done so many low calorie diets in the past I tend to go deathly pale and rather feeble as soon as my metabolism twigs that I am not eating enough, by its standards.
I think it must be good for me, and my husband benefits to some extent - when we went to a reunion everyone seemed so old, it was really weird. I am old enough to have a bus pass and I always know when there is a new driver on the route as they want to check that it is mine - I don't look old enough.