People mainly take Black Tea for mood, energy, focus. Based on 21 first-hand reports and 64 meta-analyses & systematic reviews in the medical literature. Ranked #189 of 1,974 overall.
Of reports that state an outcome, 74% are positive.
Of the people who reported each effect, the share who said it got better.
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: This meta-analysis provided a clear picture of the behavioral and nutritional factors associated with the development of stomach cancer. These results may be utilized for ranking and prioritizing preventable risk factors to implement effective prevention programs.
PubMed 32023777 ↗Conclusion: The consumption of soft cola, coffee, black tea, grape juice, and red wine, as well as the consumption of a totally unrestricted diet, do not have a significant influence on the effectiveness of bleaching as compared to a white diet regimen.
PubMed 39557282 ↗Conclusion: Black tea consumption significantly lowered serum concentration of LDL cholesterol, especially in subjects with higher cardiovascular risk. Black tea intake did not impose obvious effect on serum concentrations of total and HDL cholesterol.
PubMed 24972454 ↗Conclusion: The results from this meta-analysis indicate that green tea, but not black tea, may be related to a reduction of EC risk. Large population-based randomized controlled trials and large prospective cohort studies are required to obtain a definitive conclusion and determine the mechanisms underlying this association.
PubMed 26138307 ↗As stated by users — not a recommendation. Follow the label or your doctor.
How often each side effect came up across all reports.
Verbatim quotes, shortened only — each links to the original discussion.
“it took a pot of black tea to make it stimulating”
“Why is my anxiety gone? Why am I not jittery anymore? Why do I feel so good? I found out later on that my pot of strong black tea has plenty of theanine in it.”
“I'm not a fan of black tea since I find them to be too strong.”
“Black tea comes the closest to me of all other caffeine containing beverages.”
“I've read black tea works just as well if not better for viral infections”
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate