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How Much Weight Is Too Much to Gain During Pregnancy?

Determining your pre-pregnancy body mass index, or BMI, is crucial in determining what your healthy weight gain is during pregnancy, notes Dr. Alberto Del Pilar, Jr., a family physician in Oswego, New York. “The American Academy of Family Physicians recommends an average weight gain of between 20 and 25 pounds,” says Del Pilar. But more accurately, someone who has a pre-pregnancy BMI of less than 18.5 should have a weight gain of 28 to 40 pounds; a pre-pregnancy BMI of 18.5 to 24.2 might see a weight gain of 25 to 35 pounds; for a pre-pregnancy BMI of 25 to 29.9, a weight gain of 15 to 25 pounds is acceptable; and for a pre-pregnancy BMI of more than 30, the goal is a weight gain of 11 to 20 pounds.

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