You can eat it. The reason why mung bean sprouts grow small leaves is because the seeds germinate first and then grow leaves, which may be due to the bad timing or the rapid germination of mung beans caused by the warming of the temperature a few days ago.

Bean sprouts, also known as bean sprouts, are edible "sprouts" cultivated from seeds of various cereals, beans and trees, also known as "live vegetables".

Common sprouts are: Toona sinensis bud, buckwheat bud, alfalfa bud, pepper bud, black bean sprout, acacia bud, sunflower bud, radish bud, asparagus bud, peanut bud, broad bean bud and more than 30 varieties.