Daily How Much

Most adults do fine at 400 mg a day or less, and sleep often improves when the last caffeine hits 6–8 hours before bedtime.

Most pregnancy guidance sets a daily caffeine ceiling at 200 mg, counting drinks, chocolate, and certain medicines.

Most healthy adults can stay at 400 mg caffeine a day; pregnancy and teens call for lower totals.

Most pregnancy guidance caps caffeine at 200 mg a day, which is about one 12-oz brewed coffee.

Most nursing adults do fine at 200 mg of caffeine per day, spread across the day, while watching baby sleep and fussiness.

Most kids do best with no caffeine, and teens who do have it should keep daily intake near 100 mg.

Most breastfeeding parents do fine at 200–300 mg caffeine a day, then scale back if baby gets fussy or sleep gets choppy.

Most healthy adults do fine at up to 400 mg caffeine daily; pregnancy limits are lower.

Most healthy adults do fine with up to 400 mg of caffeine per day, spread out, while pregnancy and some conditions call for less.

Most pregnant adults should stay at or under 200 mg of caffeine per day, unless their care team sets a lower cap.