how much caffeine should you have a day when pregnant?
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Due to conflicting conclusions from numerous studies, the March of Dimes states that until more conclusive studies are done, pregnant women should limit caffeine intake to less than 200 mg per day. This is equal to about one 12 oz cup of coffee.
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While safe doses of caffeine vary by individual, current research recommends limiting caffeine to 400 mg per day or less in healthy adults ( 28 ). As one small 8.4-ounce (260-ml) can of Red Bull provides 75 mg of caffeine, drinking more than 5 cans per day could increase your risk of caffeine overdose ( 2 ).
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Up to 400 milligrams (mg) of caffeine a day appears to be safe for most healthy adults. That's roughly the amount of caffeine in four cups of brewed coffee, 10 cans of cola or two "energy shot" drinks. Keep in mind that the actual caffeine content in beverages varies widely, especially among energy drinks.
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Though caffeine has benefits, health authorities recommend watching your intake during pregnancy. Most experts agree that caffeine is safe during pregnancy if limited to 200 mg or less per day. This equals about 1–2 cups (240–580 mL) of coffee or 2–4 cups (540–960 mL) of caffeinated tea.
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As stated above, the amount of caffeine that might affect baby will vary widely depending upon the specific baby and the baby's age and health. The estimate we often hear is “less than five 5-oz cups of coffee” or 500 mg/day. Various sources suggest an upper limit for caffeine intake ranging from 300-750 mg/day.
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Decaf coffee contains only a very small amount of caffeine, with 2.4 mg in an average brewed cup (240 mL). Therefore, it's most likely fine to drink in moderation during pregnancy.
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The good news is, there's no need to cut caffeine out altogether if you're planning on becoming pregnant or even once you become pregnant — most experts believe that up to 200 mg a day is fine. That adds up to about any one of the following: 1.5 to 2 cups brewed coffee, 8 oz each. 3 to 4 espressos, 1 oz each.
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Teas that may be safe during pregnancy Most caffeinated teas are considered safe to drink during pregnancy, as long as they do not cause a woman's total daily caffeine intake to exceed 300 mg ( 8 , 11 ).
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A study by the American College of Obstetricians and Gynaecologists shows that a pregnant woman should not consume more than 200 mg of caffeine per day. One serving of soda has between 32-42 mg of caffeine. Hence, if you limit your daily consumption of soda to one serving per day, you are safe.
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To err on the side of caution, the American College of Obstetricians and Gynecologists (ACOG) advises pregnant women to limit their caffeine intake to less than 200 milligrams per day, which is about one 11-ounce cup of coffee (See the chart below to get a sense of the amount of caffeine in common beverages and foods.)
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Most caffeinated teas are considered safe to drink during pregnancy, as long as they do not cause a woman's total daily caffeine intake to exceed 300 mg ( 8 , 11 ).
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As for most adults, up to 400 milligrams of caffeine a day appears to be safe, according to the Mayo Clinic. "Healthy adults who choose to drink energy drinks should not exceed one can per day," the Mayo Clinic's Zeratsky said.
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Though babies can't process caffeine as quickly as adults, breastfeeding mothers can still consume moderate amounts. You can safely have up to 300 mg of caffeine per day — or the equivalent of two to three cups (470–710 ml) of coffee.
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And how, exactly, does caffeine interfere with sleep? In terms of how much caffeine you should have, the general consensus is that up to 500 milligrams per day—or roughly the equivalent of four eight-ounce cups of brewed coffee—is safe for adults.
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How much caffeine is safe to consume? Up to 300 mg of caffeine, or about 2-3 cups of coffee, is safe for breastfeeding mothers to consume (Lauwers & Swisher, 2015).
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If you're pregnant, limit the amount of caffeine you have to 200 milligrams (mg) a day. This is about the same as 2 mugs of instant coffee. High levels of caffeine in pregnancy can result in babies having a low birthweight, which can increase the risk of health problems in later life.
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Can I drink Coca‑Cola when pregnant? Yes. The Food Standards Agency recommends that pregnant women shouldn't take more than 200mg of caffeine a day. A can of Coca‑Cola Classic contains 32mg of caffeine and a can of Diet Coke contains 42mg.