Green tea

The Japanese have been drinking green tea for thousands of years, and with good reason. The colorful beverage is known for its anti-inflammatory and immune-boosting properties, and according to studies , can increase fat burning and boost one's metabolic rate. The easiest way to add green tea to your diet is to simply drink a cup of it iced or hot , but you can also make green tea rice if you're looking for a nutrient-dense side.