an 8-ounce mug of auto-drip coffee has approximately 140 milligrams that caffeine. iStockPhoto.com hide caption

New research reflects that consuming an ext than 200 mg that caffeine a day can double a pregnant woman"s opportunities of miscarriage. Below, some common servings the drinks and food, and how many milligrams of caffeine lock contain.

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Coffee & energy Drinks

Starbucks Latte, 16 oz.: 150 mg

Coffee, brewed, 8 oz.: 95 come 140 mg

Red Bull, 8.3 oz.: 76 mg

Espresso, 1 oz.: 64 mg

Instant coffee, 8 oz.: 64 mg

Coffee, decaf, brewed, 8 oz.: 2 mg


Black tea, 8 oz.: 47 mg

Green tea, 8 oz.: 30-50 mg

Herbal tea, 8 oz.: 0 mg


Mountain Dew, 12 oz.: 54 mg

Diet Coke, 12 oz.: 47 mg

Dr Pepper, 12 oz.: 41 mg

Pepsi, 12 oz.: 38 mg

Diet Pepsi, 12 oz.: 35 mg

Coca-Cola Classic, 12 oz.: 35 mg

Barq"s source Beer, 12 oz.: 23 mg

7Up/Sprite, 12 oz.: 0 mg


Excedrin, Extra Strength, 2 tablets: 130 mg

Hershey"s chocolate Bar, 1.55 oz.: 9 mg

Hot cocoa, 8 oz.: 8 mg

Chocolate milk, 8 oz.: 6 mg

Sources: USDA Nutrient Database, MayoClinic.com

Limiting caffeine throughout pregnancy is standard advice. But a brand-new study, published in the current problem of the American newspaper of Obstetrics and Gynecology, sheds light on how much may be too much.

The study, led through Kaiser Permanente reproductive and perinatal epidemiologist De-Kun Li, included about 1,000 females from the mountain Francisco bay region. What"s distinctive is the researchers had actually the women write down exactly how much coffee, tea and also caffeinated sodas they were drinking, beginning in the earliest mainly of your pregnancy. Most of the females were in your late 20s to mid-30s.

"They were recruited an extremely early in pregnancy from a pregnancy test," explains Tracy Flanagan, director of Women"s health at Kaiser Permanente"s northern California region. Therefore the researchers had really complete miscarriage data.

Women that consumed 200 milligrams or much more of caffeine per day had actually twice the miscarriage danger as women that consumed no caffeine, the study concluded.

"What"s yes, really interesting about the study," claims Flanagan, "is the so many reasons of miscarriage space not alterable by way of living or anything a woman deserve to do. So, cutting the end caffeine can be a pretty simple thing to do for the very first three or four months of pregnancy, once the miscarriage price is the highest."

Many researches have found a link between high caffeine intake and also miscarriages.

But this study evaluated the risk of simply 200 milligrams or more of caffeine a day.

Looking at the findings, Flanagan claims it have the right to be tricky to analyze them into easy advice because that women.

If girlfriend stick come the idea of limiting intake to just one caffeinated drink a day, that doesn"t take into account all the sport in caffeine concentration and serving sizes, too.

Take because that instance, a conventional cup the auto-drip coffee. One 8-ounce mug will have around 140 milligrams the caffeine.

"But most civilization don"t in reality measure the end a measure cup of coffee," states Flanagan. "And exactly how it"s brewed makes a difference, too."

There"s variation in the caffeine concentration of beans together well.

If her morning starts v a avoid at Starbucks, one high coffee has approximately 240 milligrams the caffeine.

For females who want to taper down their caffeine intake, environment-friendly tea is one option.

It frequently has about 25 milligrams per cup.

Regular tea has actually a small more, v 45 come 50 milligrams every 8 ounces. Many caffeinated colas or soft drink have about 35 milligrams in a 12-ounce can.

Drinking among these a day is a means to limit caffeine. The various other option, for pregnant women, or for those trying to come to be pregnant, is simply to offer up caffeine, cold turkey.

Tammy Plotkin-Oren, a 35-year-old financial-planner from san Francisco, claims she absolutely missed the morning rush as soon as she provided up coffee.

But she says switching to natural tea to be the obvious an option for her. She describes her first pregnancy finished in a miscarriage.

"I remember questioning a lot of questions, "Is that something that i did? What have the right to I do in different way so the it won"t take place again?"" she says.

She had currently cut the end alcohol, and also wasn"t a smoker, so eliminating caffeine was the adjust she can make.

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"I made the decision that ns was walk to execute anything that ns had regulate over. So the was really black and also white. That was favor — no an ext caffeine, done," states Plotkin-Oren.

Three healthy children later, she says providing up caffeine plainly wasn"t lot of a sacrifice.