Knowledge
Health & Caffeine
Caffeine levels, L-theanine, evening drinking, fasting, digestion, antioxidants — what tea does to your body.
Is tea good for digestion?
Real, especially for shou pu-erh and aged sheng. Pu-erh contains gallic acid and microbial byproducts that stimulate bile production and gut motility — Chine...
Can I drink tea while fasting?
Plain tea (no milk, no sugar, no honey) is essentially zero calories and is generally fine during a fast. It may even help — caffeine and catechins support f...
Is green tea actually healthier than black tea?
Different, not better. Green tea has higher levels of EGCG (the most-studied catechin), good for oxidative stress and metabolism. Black tea has theaflavins a...
Can I drink tea at night?
Caffeine sensitivity varies wildly, but rules of thumb: avoid black tea, matcha, and dark oolongs after 4 PM if you sleep light. Safer evening choices: well-...
Does L-theanine in tea really calm you down?
Yes, with caveats. L-theanine is a non-protein amino acid found almost exclusively in Camellia sinensis. EEG studies show it increases alpha-wave activity in...
How much caffeine is in different teas?
Per 240ml cup (rough): matcha ~70mg (you drink the whole leaf), black tea 40–70mg, oolong 30–50mg, green tea 25–40mg, white tea 15–30mg, decaf tea <5mg. F...