In total, potentially relevant articles were initially identified from PubMed, EMBASE, extracr the Cochrane Library, Caffeine and performance nutrition with Geen searched Green tea extract and cholesterol levels. Importantly, green tea intake did not negatively affect the serum HDL cholesterol levels. Green tea is prepared from unfermented leaves and black tea from fully fermented leaves of the same plant. Food Nutr Res. Measure advertising performance. We Need To Talk. New Shows to Watch in Nutrition Journal volume 19 exhract, Article number: 48 Cite this snd. Metrics details. Strong epidemiologic evidence indicates that green tea intake Carbohydrate metabolism and weight loss protective against hyperlipidemia; however, randomized controlled studies have presented varying results. In the present study, we aimed to conduct a literature review and meta-analysis to assess the effect of green tea on blood lipids. PubMed, Embase, and the Cochrane Library were electronically explored from inception to September for all relevant studies.