8. Fava Beans
Fava beans, also known as broad beans, has a high concentration of vitamin K, thiamin, vitamin B6, potassium, zinc, magnesium and selenium. Its PQQ content is 17.8 nanograms/gram. Fava beans can be served cooked or raw. It is also high in fiber to aid in digestion.
9. Carrot
Carrot is a root vegetable widely used in dishes. It is usually orange in color but red, purple, black yellow and white carrots do exist. Its PQQ content is 16.8 nanograms/gram. Carrot helps improve vision due to its high beta-carotene content which is converted into vitamin A in the body.
