Caffeine During Pregnancy

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Caffeine During Pregnancy

Topic Overview

Caffeine is the most frequently used drug during pregnancy. In small amounts, caffeine is considered safe for the fetus. It's a good idea to keep your caffeine intake below 200 mg a day because:1

  • More caffeine may be connected to a higher rate of miscarriage. There is not enough evidence to know for sure.2
  • Caffeine is a diuretic, meaning it makes you urinate more often. This can cause you to lose important minerals, including calcium.
  • Caffeine can interfere with sleep for both you and your fetus.

Avoid caffeine, or limit your intake to about 1 cup of coffee or tea each day.

Caffeine can be found in many types of drinks and in chocolate. The amount of caffeine in your coffee or tea can depend on the serving size, the brand, or how it was brewed.

Coffee drinks such as a 500 mL (16 fl oz) mocha can have 175 mg of caffeine, and a 375 mL (12 fl oz) regular coffee can have as much as 260 mg of caffeine. Tea can have 30 mg to 130 mg of caffeine in a 355 mL (12 fl oz) cup. Milk chocolate can have 1 mg to 15 mg of caffeine in a 30-gram serving, and dark chocolate can have 5 mg to 35 mg of caffeine. Many soft drinks and energy drinks also have caffeine.

It is important to keep track of your caffeine intake throughout the day. Check the label if you do not know how much caffeine is in your drink or chocolate bar. Talk to your doctor about caffeine and nutrition during pregnancy.



  1. Weng X, et al. (2008). Maternal caffeine consumption during pregnancy and risk of miscarriage: A prospective cohort study. American Journal of Obstetrics and Gynecology. Published online January 28, 2008 (doi:10.1016/j.ajog.2007.10.803).
  2. American College of Obstetricians and Gynecologists (2010). Moderate caffeine consumption during pregnancy. ACOG Committee Opinion No. 462. Obstetrics and Gynecology, 116(2): 467–468.


By Healthwise Staff
Primary Medical Reviewer Sarah Marshall, MD - Family Medicine
Primary Medical Reviewer Brian D. O'Brien, MD - Internal Medicine
Specialist Medical Reviewer Kirtly Jones, MD, MD - Obstetrics and Gynecology
Last Revised January 27, 2011

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