Dr. Aaron Tabor, MD is the author of Dr. Tabor's Slim & Beautiful Diet and FIGHT NOW: Eat & Live Proactively Against Breast Cancer. After graduating from The Johns Hopkins School of Medicine, Dr. Tabor devoted his career to helping people live a life they love through medical research.

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Diet with Dr. Tabor

by Aaron Tabor, MD Diet & Anti-Aging Expert

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Numerous obesity research studies have reported that weight gain during pregnancy and birth weight are both linked to one's risk for becoming overweight or obese during both childhood and as an adult. However, it has been unclear if these links between obesity risk and pregnancy weight gain and birth weight are confounded by genetic factors.

In an attempt to clarify the associations between future obesity risk, birth weight, and weight gain during pregnancy, researchers from the Children’s Hospital Boston and Columbia University teamed together to conduct a population-based study of pregnancy weight gain and birth weight[1]. For this study, obesity researchers analyzed vital statistics birth records from over 500,000 women and over 1 million births. Analysis of the information in these records showed:

  • A consistent relationship between greater weight gains during pregnancy and greater birth weights
  • Women who gained more than about 53 lbs during their pregnancy had heavier babies than women who gained only 18-22 lbs.
  • Gaining more than 53 lbs during pregnancy more than doubled a woman's chances of giving birth to a baby weighing more than 8 lbs 13 oz.

By using such a large population, the researchers were able to omit factors that might have altered the impact of pregnancy weight gain on birth weight like short or long pregnancy lengths, maternal diabetes, and more. By reducing these potentially interfering factors, these researchers showed that excessive weight gain during pregnancy directly effects birth weight. This is important because previous research has shown that a large birth weight substantially increases a person's risk for obesity both as a child and later in life as an adult. In fact, some studies have reported that a birth weight of more than 8 lbs increases a person's risk for obesity by about 50-70%!

Therefore, it is important to eat healthy and maintain a healthy weight gain during pregnancy. The following tips from the Weight-Control Information Network might help prevent excessive weight gain during pregnancy:

  • Consume only about 300 more calories per day than normal during the last 6 months of pregnancy. For normal weight women, this would equal about 1,900 - 2,500 total calories per day
  • Eat breakfast every day
  • Be sure to include high fiber foods
  • Keep healthy snacks handy
  • Consider cutting back on large amounts of caffeine
  • Exercise at a moderate intensity on a regular basis.

Keeping weight gain during pregnancy to a healthy level is an important step for reducing childhood and adult obesity.

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Healthy Regards,

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Aaron Tabor, MD
Diet, Anti-Aging, and Nutritional Cosmetic Expert
Author of Dr. Tabor’s Diet and FIGHT NOW.

Learn more about Dr. Tabor’s diet and anti-aging research at www.DrTabor.com.
Learn more about Dr. Tabor’s breast cancer prevention book at www.fightBCnow.com.


  1. Ludwig DS, Currie J. The association between pregnancy weight gain and birthweight: a within-family comparison. The Lancet 2010; Early Onling Publication, August 5, 2010, doi: 10.1016/S0140-6736(10)60751-9.
  2. NIDDK Weight-control Information Network. Fit for Two: Tips for Pregnancy. URL: https://www.win.niddk.nih.gov/publications/two.htm

@ 12:38pm ET on August 9, 2010
I think this study is bs! I gained 65 pounds when I was pregnant. My son came out 8.1 pounds. I followed all of the set guidlines except the moderate exercise on the daily. Until then, I never had a weight problem. Alot of this study is calibrated by people who have unhealthy lifestyles in general, thus predisposing their children to the same fate. I guess my situation is the minority. It still boils my blood, but I'm sensitive to the pregnant plight. But what makes me more mad is the fact that parents are making their children overweight by their own unhealthy lives. They never had a chance. So the moral of the story is, if this info scares one mom into not overeating and perpetuating the cycle, then it has served its purpose. The end.

@ 1:28pm ET on August 11, 2010
There are certainly exceptions and research results are typically based on statistical averages. It's great that you were able to avoid this issue and are trying to live a healthy lifestyle. Keep up the great job!

Unfortunately, not everyone is aware that their habits can impact their child's risk for becoming obese. Like you said, hopefully news like this will increase everyone's awareness.

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