Choose a drink, not a treatment
TeaPlain helps with tea names, preparation, buying and storage. It does not match a tea to a disease or prescribe tea for weight loss, detoxification or sleep. Evidence about an isolated compound or a concentrated supplement is not a promise about a cup prepared in your kitchen.
Research summaries distinguish green tea as a beverage from green-tea extracts and describe limits to health evidence. We do not turn those findings into a list of treatments or transfer them to every tea in the encyclopedia.
Keep caffeine in the decision
Tea can contribute caffeine to your day. The amount in your cup and your sensitivity are not established by the tea name alone. Consider other caffeine sources too. This site does not rank every tea as “safe at night” or supply a fixed caffeine amount for an untested recipe.
If caffeine affects your sleep or how you feel, choose a different drink or discuss your circumstances with a qualified health professional. A tea described as mild, aged or unsmoked is not thereby caffeine-free.
Ask about your circumstances
Pregnancy, breastfeeding, medication use and a health condition can change what advice is appropriate. Ask your healthcare professional about the actual product and your usual intake rather than choosing from a generic “suitable people” table. Keep the ingredients and packet available for that conversation.
We do not give a universal interval between tea and every medicine. Concentrated extracts and supplements also need their own assessment; do not use beverage brewing advice as supplement instructions.
What to read instead of a benefits chart
- To choose by flavour and budget: buy your first Chinese tea.
- To understand a cup you enjoy: taste your first cup.
- To prepare a known tea: choose a brewing method.
- To check an uncertain packet: storage and condition.
Editorial notes
Reviewed 17 October 2026 against FDA caffeine information and the NCCIH green-tea evidence and safety summary. These support cautious distinctions, not individual clearance to drink tea or a medical consultation. No clinical or caffeine testing was performed by TeaPlain.