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In pregnancy women shouldn't exactly eating for two

Specific weight gains are associated with statistically higher healthy pregnancy. Women aren't really eating for two the whole time, in the first trimester we really only need to gain a pound. For the babies poor weight gain can mean significant increase in risk, and risks for complications like failing to breastfeed well. For moms too much gain is associated with risks such as blood pressure issues and diabetes. Nutrition itself is critically important, as is total weight gain. And we urge our patients to sit down with their gyno and have a nutritional evaluation and blood work prior to conception. We take into consideration, caloric needs for exercise, heart and lung health, insulin resistance and any history of birth defects or miscarriages.BMI also has to be interpreted within your ethnic background, although the guidelines haven't really caught up to that!

If you want to think in broad strokes of calories: you need an extra 200, 300, and then 400 calories per day in the first, second, and then third trimester.

Twin pregnancies don't really last the full 40 weeks, so the pounds you gain are actually during a shorter time period. Guidelines for total pounds of weight to gain during pregnancy* are as follows:

* Underweight women (BMI less than;18.5) should gain 28-40 pounds.

* Normal-weight women (BMI, 18.5-24.9) should gain 25-35 pounds.

* Overweight women (BMI, 25-29.9) should gain 15-25 pounds.

* Obese women (BMI, 30 or higher) should gain 11-20 pounds.

Weight gain guidelines are for singleton pregnancy; weight gain should be higher for multiple pregnancies such as twins or triplets.

* Underweight women (BMI less than;18.5) with twins, there just isn't enough information to give you a specific range.

* Normal-weight women (BMI, 18.5-24.9) should gain 17-25pounds.

* Overweight women (BMI, 25-29.9) should gain -14-23 pounds.

* Obese women (BMI, 30 or higher) should gain 11-19 pound


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