The beest by far, in my opinion, are water and specially green tea because it has a looot of benefits for health and also it's a natural antioxidant and is good for losing weight quickly, for skin care, delay aging, regulate the circulatory system, prevent chronic diseases, among others. I drink a lot of green tea and I can say that it reeeally helps.
Sorry so much info haha but well to keep it in mind :D
Greetings :)