The good: Almonds are delicious on their own or as part of a recipe. These seeds (not a nut, as commonly thought) are rich in vitamins and minerals, and may lower cholesterol and even the risk of cancer.
The bad: Apart from a fairly common tree nut allergy, bitter almonds are chock full of cyanide. In fact, it's illegal to buy raw, untreated bitter almonds in the U.S. today. All almonds undergo mandatory pasteurization to remove poison and bacteria -- which has stirred up food controversy since 2007.