Oolong Tea and Nuts
Oolong tea is not as popular as green tea, but it is just about as effective. One study found that it was more effective than green tea in burning calories. It contains an ample amount of caffeine and catechins.
One review of studies found that the presence of these two compounds in fish can help boost the number of calories you burn by 102 calories a day [8]. Studies also suggest [9] that drinking oolong tea boosts metabolism in the body. This is important when you are trying to burn fat.
Nuts are high in proteins and healthy fats that can improve metabolism and promote fat burning. They also indirectly boost fat burning by delaying hunger for long periods.
Studies [10], where participants included nuts in their diets, have shown that nuts helped improve metabolism and did not cause any extra weight gain.