9. Romaine lettuce (Nutrient Density Score – 63.48)
Romaine lettuce is a variety of lettuce that grows in a tall head of sturdy leaves with firm ribs down their centers.
It is a very good source of dietary fiber, manganese, potassium, biotin, vitamin B1, copper, iron and vitamin C. It is also a good source of vitamin B2, omega-3 fatty acids, vitamin B6, phosphorus, chromium, magnesium, calcium and pantothenic acid. Just one head of romaine has 206 milligrams (mg) of calcium (about 21% RDA).
10. Collard green (Nutrient Density Score – 62.49)
Collards green is a leafy vegetable that belong to the same family that includes cabbage, kale, and broccoli and could be described as a non-heading cabbage.
They are an excellent source of vitamin-A (222% of RDA per 100 g) and carotenoid anti-oxidants such as lutein, carotenes, zea-xanthin, crypto-xanthin, etc. These compounds are scientifically found to have antioxidant properties. Vitamin A also required maintaining healthy mucus membranes and skin and is also essential for healthy vision. Consumption of natural fruits rich in flavonoids helps to protect from lung and oral cavity cancers.
This leafy vegetable contains amazingly high levels of vitamin-K, provides staggering 426% of recommended daily levels per 100 leaves. Vitamin K has a potential role in the increase of bone mass by promoting osteotrophic activity in the bone. It also has the beneficial effect in Alzheimer’s disease patients by limiting neuronal damage in their brain.