Prenatal nutrition1 min readUpdated May 31, 2026
Caffeine during pregnancy: how much is reasonable?
Where caffeine hides, reference limits from ACOG and NHS, and practical swaps for coffee and tea lovers.
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Bầu Ăn Gì? Team · References ACOG, NHS
Where does caffeine go?
Caffeine crosses the placenta; the fetus metabolizes it slowly. Moderation is the usual advice.
Reference limits
ACOG and NHS commonly cite up to about 200 mg caffeine per day in pregnancy — roughly one 12-oz brewed coffee, depending on strength. Energy drinks and some teas vary widely.
Common sources
- Coffee (cà phê), espresso, Vietnamese iced coffee (often strong).
- Black/green tea, matcha.
- Cola, energy drinks, some chocolate.
Tips
- Count all sources in a day.
- Try half-caf, smaller cups, or later-morning only.
- Avoid energy drinks with uncertain caffeine levels.