Collard greens belong to the cruciferous vegetable family, which include bok choy, kale, broccoli, brussels sprouts, cabbage, rutabaga, and turnips. Collard greens are high in nutrients but low in calories. Collard Greens have many health benefits as listed below. Collard greens can also improve digestion and prevent constipation due to its fiber and water content. Collard greens can help with mood, sleep, muscle movement, learning, and memory functions due to the presence of choline, an important neurotransmitter. Choline, also containing folate, may help with depression, “as it can prevent an excess of homocysteine from forming in the body.”