Should i be fine to drink green tea as part of a diet to prevent kidney stones?

Yes: Overall, because it contains antioxidants, green tea is a great addition to your diet. However, hydration is an important factor in keeping your kidneys healthy. Anything containing caffeine (like tea) may dehydrate you a little bit, so you will need to compensate with adding water to diet as well. If you need to jazz it up, try adding lemon or cucumber slices to water!