Green Tea is a very healthy beverage.
It contains caffeine and the antioxidant epigallocatechin gallate (EGCG), which are believed to increase metabolism.
EGCG, a catechin in green Tea, has been shown to help with belly fat loss. Green Tea can increase the effect when combined with exercise.
One review found that green Tea can increase weight loss when taken at lower than 500mg per day for 12 weeks.
Another study found that green tea consumption could help reduce body weight and waist circumference.
But, it is necessary to do more qualitative research.
SUMMARY
Green tea consumption is linked with weight loss, although more research is necessary. It could be more efficient and works best when combined with exercise.