3. Green Tea. While caffeine can help boost your metabolism in small doses, drinking a pot of coffee every day isn’t going to help you. However, in healthy doses, caffeine can be very effective. Green tea is an especially good way to boost you metabolism. This beverage has bee showed to promote fat oxidation, and it gives you that little jolt you need to get moving in the morning without overdoing it. If you need your coffee, limit yourself to one cup, and try to steer clear of the extra sugar and milk. Remember to drink extra water for every cup of coffee or tea you consume. Green tea is also great for those of you who are looking for a detox diet. Learn more about green tea and other detox foods here.