Heterobasidiomycetes, including the jelly, rust and smut fungi; Previously the entire Basidiomycota were called Basidiomycetes, an invalid class level name coined in 1959 as a counterpart to the Ascomycetes, when neither of these taxa were recognized as divisions.
Too much of anything is bad is general rule of thumb. I found several articles which favour eating peppermint and detail side effects of over consumption. But in general there are some side effects of eating altoids and other mint gums. Mouth sores, headaches, stomach burns are few of them. Check out following links for more information. peppermint: Uses, Side Effects, Interactions and Warnings.
It would be elusive to help them beyond that. And for vegetarian mints-Altoids have gelatin in them too, I believe. I also am unaware if the magnesium stearate in Tic Tacs is bovine in origin. If you wanna be safe though, here's a UK company that sells vegan mints: http://www.uncle-joes.com/ .Skittles Mints and Mentos (both relatively recently stopped using gelatin) should also be safe.olo mints are now suitable for vegetarians I wouldn't get yourself so stressed about the fact you ate the mints-as since you have found out you have stopped eating them. I cannot think of a specific charity for helping cows-but this site may give you a couple of ideas.