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.
1. Enjoy a Cup of Chamomile Tea. Chamomile can help ease the pain of a stomach ache by working as an anti-inflammatory (for example the lining of the stomach can become inflamed as a result common gastritis, caused by bacteria) and by relaxing the smooth muscle of the upper digestive track.