I find I still sometimes have to be careful with vegetarian food. The main thing I have to watch out for is salt/sodium in convenience or fast food. I've found that saturated and trans fats aren't so common in vegetarian foods, although if you eat a lot of full-fat dairy or egg, that could also be a problem.
At a recent checkup, my doctor found a vitamin D deficiency; I'd been cutting way back on dairy and eggs, but had thought I was getting enough from the sun outdoors in summer. I take vitamin B-12 regularly too; my checkup didn't show any problems there, so I guess it's working. Anyway, too much vitamin D can be a problem, although that doesn't happen if you get it from the sun.
Peasant (1963-1972) and Fluffy (1970s?-1982- I think of you as 'Ambrose' now)- Your spirits outshone some humans I have known. Be happy forever.