Answer: You can eat it.

Acorn: starchy, edible, bitter. Also called acorns, acorns, and oak chestnuts. Oak. The fruit of the oak tree is oblong and contains starch and a small amount of tannic acid. The outer shell can be used to make tannins. It is also called acorns and acorns.

Extension:

The various amino acids contained in acorns can not only provide raw materials for human protein synthesis, but also promote cell metabolism and stimulate the pituitary gland and adrenal glands. It secretes various hormones, thereby improving the body's microcirculation and improving various body functions.

At the same time, acorns also contain trace amounts of the black metal element vanadium found in other plants or fruits. The vanadium contained in acorns can affect the phospholipid oxidation process and the activity of enzymes required for this process, thereby delaying or controlling the aging of the body. Long-term consumption of acorns by obese people can help achieve the effects of losing weight, lowering fat, beautifying and detoxifying.

Baidu Encyclopedia-Acorn