Kourtney Kardashian drinks plenty of water to stay healthy. They even have jugs of healthy content at home to keep their wellness regime going. The 'Keeping Up With The Kardashians' beauty swears by the effect of filtered water with fresh lemon on the metabolism. Mint and ginger, on the other hand, are good for the immune system. The 38-year-old raves about the importance of water and even drinks more than she would actually need in the end. Well, if that's not a healthy role model ...