Kale is high in Vitamin C

This is very helpful for your immune system, your metabolism and your hydration. Kale is one of the worlds best sources of vitamin K, with a single raw cup containing almost 7 times the recommended daily amount. Kale is actually loaded with compounds that are believed to have protective effects against cancer. This includes sulforaphane, a substance that has been shown to help fight the formation of cancer at the molecular level.