Ankara University, Nutrition and Dietetics.
Afr Health Sci. 2021 Jun;21(2):858-865. doi: 10.4314/ahs.v21i2.47.
The aim of this study was to compare black tea consumption and caffeine intake with depression status.
This study was conducted on 491 adults (M:169, F:322). The average daily caffeine intake of individuals was calculated using the amounts of caffeinated beverages they consumed daily and the caffeine contents of these beverages. The participants' depression status was determined using the Beck Depression Inventory (BDI). All of the research data were evaluated using STATA.
According to BDI scores, 30.1% of participants had depression. Black tea was consumed by all of the participants and also had the highest consumption level of 620.1±90.4mL and the mean caffeine intake of the participants was 629.5±418.8 mg. Multivariate regression analyses showed that consuming more than 1 cup was protective against depression up to 4 cups. Moreover, a 450-600 mg caffeine intake also reduces the risk of depression than lower or higher intake levels.
Our study suggests that black tea consumption up to 4 cups and caffeine intake between 450-600 mg can help protect against depression. Further studies are needed to better understand the protective effects of black tea and caffeine on depression.
本研究旨在比较红茶摄入量和咖啡因摄入量与抑郁状态之间的关系。
本研究纳入了 491 名成年人（男性 169 人，女性 322 人）。通过每日饮用含咖啡因饮料的量及其咖啡因含量计算个体的日均咖啡因摄入量。使用贝克抑郁自评量表（BDI）评估参与者的抑郁状态。采用 STATA 软件对所有研究数据进行评估。
根据 BDI 评分，30.1%的参与者存在抑郁。所有参与者均饮用红茶，红茶的日均摄入量最高，为 620.1±90.4ml，参与者的平均咖啡因摄入量为 629.5±418.8mg。多变量回归分析表明，每天饮用 1 杯以上的红茶可预防 4 杯以下的抑郁，450-600mg 咖啡因摄入量也可降低低于或高于此摄入量的人群患抑郁的风险。
本研究表明，每天饮用 4 杯以内的红茶，摄入 450-600mg 咖啡因有助于预防抑郁。需要进一步研究以更好地了解红茶和咖啡因对抑郁的保护作用。
