Oyster (Opyata) Mushrooms, 12 oz / 340 g (Moldova Pickles)

One cup of sliced oyster mushrooms has 28 calories and less than 1 gram of fat, yet delivers 2 grams of fiber and 3 grams of protein.

Per serving, men gain 5 percent of their recommended daily intake of both fiber and protein, while women get 6 percent of their daily protein and 8 percent of dietary fiber. The same portion also provides 8 percent of the daily value of potassium, vitamin B-6 and folate.