Green tea improves cholesterol
Green tea is healthy. Green tea makes losing weight a little easier, reduces the risk of some cancer types and also seems to slow down aging. When a meta-study shows that green tea also improves cholesterol levels, we are not a bit surprised.
Chinese cardiologists from Huazhong University of Science and Technology tracked 31 trials involving a total of 3,216 subjects. The researchers aggregated and re-analyzed the results of that study.
The researchers found no effect of green tea on the concentration of the 'good cholesterol' HDL and triglycerides. However, according to their meta-study, consumption of green tea had a positive effect on the level of 'bad cholesterol' LDL. Green tea lowered the LDL concentration by 4.55 points.
There was no effect of the amount of green tea on the LDL level.
The researchers suspect that green tea reduces the body's absorption of cholesterol, which in turn lowers synthesis of LDL.
"The results of this study indicate that green tea supplementation has a beneficial effect on [...] LDL cholesterol levels in both normal weight subjects and overweight/obese subjects", the researchers write. "Additional large prospective cohort studies are needed to provide a more definitive conclusion on the association between routine consumption of green tea and lipid metabolism".
Nutr J. 2020 May 20;19(1):48.
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