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.
Arrowroot starch is used as a thickener in many foods such as puddings and sauces. It can also be used in cookies and other baked goods. The starch has an extremely bland taste, which makes it suitable for neutral diets. It is believed that arrowroot helps to soothe upset stomachs/nausea. Arrowroot powder should be whisked into a cool liquid before adding to a sauce or other liquid based recipe, and it should be added towards the end. As overcooking can destroy the gelling properties of arrowroot.