Across 3 studies, 1 reported a beneficial moderate-sized effect of green tea on reducing triglyceride levels, while 2 found neutral effects. The beneficial finding came from a meta-analysis showing short-term (<8 weeks) green tea intake at doses below 3000 mg/day significantly reduced triglycerides (SMD: -0.74). Evidence base is small (only 3 studies) — conclusions should be considered preliminary.
Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. Many of the included studies did not reach statistical significance — effect may be smaller than the predominant direction suggests. One study in overweight and obese individuals found no greater effect of green tea catechin combined with exercise on triglycerides. The beneficial effect was observed in a short-term meta-analysis (<8 weeks), while another study in healthy adults showed only acute postprandial changes.
short-term green tea intake (<8 weeks) significantly reduced ... TG (SMD: -0.74)
EX+GT had no greater effect on lipid profile improvement [triglyceride: SMD = -0.92, CI: -1.30 to 0.49]
The differences in triglyceride (TG) values relative to the baseline levels at 2h and 3h of green tea was significantly decreased compared with black tea and oolong tea (p<0.05).