GUIDE
Caffeine During Pregnancy
Published on ·Updated on
WITH CAUTION — limit to 200mg per day (about one 12-ounce cup of coffee).
Moderate caffeine is considered safe per ACOG guidelines. Excessive intake is linked to increased miscarriage risk and low birth weight.
Be prepared from day one
“There's a host of reasons why prenatal care is important. The earlier that we can get patients seen, the earlier we can start interventions that can improve these longer-term outcomes.”
The Short Answer
You don't have to give up caffeine during pregnancy — you just need to limit it. ACOG (the American College of Obstetricians and Gynecologists) recommends a maximum of 200mg of caffeine per day during pregnancy, which is roughly equivalent to one 12-ounce cup of brewed coffee.
This 200mg limit applies to total caffeine from all sources combined: coffee, tea, soda, energy drinks, and chocolate. Going slightly over on occasion is not an emergency, but consistently exceeding this amount is associated with increased risks.
For a complete overview, see our complete food safety guide.
Safe Caffeine Amounts
- One 12oz cup of brewed coffee per day — approximately 120-200mg caffeine
- Decaf coffee — only 2-15mg per cup, safe to drink freely
- Black or green tea — about 25-50mg per cup, 3-4 cups stays under the limit
- Occasional soda — a 12oz cola has about 35mg of caffeine
- Small amounts of chocolate — 10-30mg per bar, minimal contribution
- One shot of espresso — about 63mg, safe as part of your daily total
Track total daily caffeine from all sources — the 200mg limit is cumulative.
What to Limit or Avoid
- More than 200mg of caffeine per day from all sources combined
- Large or extra-large coffeehouse drinks — a 16oz Starbucks brewed coffee has ~310mg
- Energy drinks — often 150-300mg per can, plus other stimulants not studied in pregnancy
- Multiple caffeinated beverages in one day without tracking total intake
- Caffeine supplements or diet pills — concentrated doses with unpredictable absorption
These guidelines are based on ACOG recommendations.
Why Caffeine Matters During Pregnancy
Caffeine crosses the placenta and reaches your baby, whose developing metabolic system cannot process it as efficiently as yours. During pregnancy, caffeine's half-life in your body also increases significantly — from about 3-5 hours normally to up to 11-15 hours by the third trimester. This means caffeine stays in your system (and your baby's) much longer.
Research on caffeine during pregnancy shows a dose-dependent relationship with risk. Studies have found that intake above 200mg per day is associated with a modest increase in miscarriage risk (some studies suggest a 12-25% increase for every additional 100mg over the limit) and a small increase in low birth weight risk.
Below 200mg per day, the evidence is reassuring. ACOG's position is that moderate caffeine consumption (under 200mg/day) "does not appear to be a major contributing factor in miscarriage or preterm birth." This isn't a case where you need to eliminate caffeine entirely — you just need to be mindful of how much you're consuming.
Caffeine Content Quick Reference
Knowing how much caffeine is in your favorite drinks helps you stay within limits. Here are the common sources:
Brewed coffee (12 oz): 120-200mg. Espresso (1 shot): 63mg. Instant coffee (12 oz): 60-80mg. Decaf coffee (12 oz): 2-15mg. Black tea (8 oz): 40-70mg. Green tea (8 oz): 25-45mg. Cola (12 oz): 30-40mg. Dark chocolate (1 oz): 12-25mg. Milk chocolate (1 oz): 5-10mg.
Be aware that coffeehouse drinks vary widely. A tall (12 oz) Starbucks brewed coffee has about 235mg — already over the daily limit. A grande (16 oz) has about 310mg. If you're a coffeehouse regular, consider switching to a smaller size or ordering half-caf (half regular, half decaf).
Herbal teas like ginger and peppermint are naturally caffeine-free and can be good alternatives. For more on safe beverages, including which herbal teas to enjoy and which to avoid, check our herbal tea guide.
Tips for Managing Caffeine
If you're a heavy coffee drinker, taper gradually rather than quitting cold turkey to avoid withdrawal headaches. Cut down by one cup every few days until you're at or below the 200mg limit.
Switch to half-caf — ask your barista to make your drink with half regular and half decaf beans. You get the coffee ritual and flavor with roughly half the caffeine. At home, mix regular and decaf grounds.
Remember that the 200mg limit includes all caffeine sources. If you have a cup of coffee in the morning (150mg), a cup of black tea in the afternoon (50mg), that's already at the limit — no room for a soda or chocolate.
For guidance on alcohol during pregnancy (which, unlike caffeine, has no safe amount), see our dedicated guide. For the full list of food and drink safety, see our complete food safety guide. For overall nutrition, check our best foods for pregnancy guide and pregnancy meal plan.
Related Guides
Sources
- U.S. Food and Drug Administration (FDA) — Advice about eating fish for pregnant people
- American College of Obstetricians and Gynecologists (ACOG) — Nutrition during pregnancy
- Centers for Disease Control and Prevention (CDC) — Foods to avoid during pregnancy
- March of Dimes — Foods to avoid or limit during pregnancy
This guide is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider with any questions about your pregnancy.
Frequently asked questions
- Can I drink coffee every day while pregnant?
- Yes. One cup of coffee per day (about 12 ounces, containing roughly 120-200mg of caffeine) is within the ACOG-recommended 200mg daily limit. Many pregnant women drink coffee daily without issue. Just track your total caffeine from all sources.
- Does caffeine cause miscarriage?
- High caffeine intake (generally above 200-300mg per day) has been associated with a modest increase in miscarriage risk in some studies. However, moderate caffeine intake under 200mg per day has not been consistently linked to miscarriage. This is why ACOG sets the limit at 200mg — it provides a safety margin.
- Is decaf coffee safe during pregnancy?
- Yes. Decaf coffee typically contains 2-15mg of caffeine per cup — a negligible amount. It's a great option if you love the taste of coffee but want to minimize caffeine. You can drink multiple cups of decaf per day without approaching the 200mg limit.
- Do I need to count caffeine from chocolate?
- Yes, but the amounts are small. A typical chocolate bar contains about 10-30mg of caffeine. A cup of hot chocolate has about 5mg. Dark chocolate has more caffeine than milk chocolate. Unless you're eating large amounts of dark chocolate daily, it's unlikely to push you over the 200mg limit.
