Weight gain · Marrakech

Weight gain in pregnancy: what is the guide for you?

Gaining weight in pregnancy is normal and necessary, but not in just any way or amount. Enter your height and your weight before pregnancy: the tool calculates your BMI and the recommended weight gain range and, if you wish, compares it with your current weight. It gives guidance, not a diagnosis.

Weight gain in pregnancy: what is the guide for you?
Pregnancy

Institute of Medicine (2009) guidance: it applies to most pregnancies and may be adapted by your doctor (illness, high-risk pregnancy, height, age). It is not a reason to diet or to worry alone. Data stay on your device.

How to use the tool

Enter your height, your weight before pregnancy and the type of pregnancy (one baby or twins). To see where you are, add the pregnancy age in weeks and today's weight. The result shows your BMI, the recommended total weight gain and, for a single pregnancy, the recommended rate in the second and third trimesters.

Where do these figures come from?

They come from the Institute of Medicine recommendations (United States, 2009), widely used around the world. For a single pregnancy they advise a total gain of about 12.5 to 18 kg if underweight, 11.5 to 16 kg for normal weight, 7 to 11.5 kg if overweight and 5 to 9 kg if obese. For twins the ranges are provisional.

Why follow weight gain?

Weight gain within the range is associated with a pregnancy that more often goes without complications, for the mother and the baby. Too little or too much gain can increase certain risks (birth weight, gestational diabetes, high blood pressure, delivery). Monitoring allows diet and activity to be adjusted without ever making you feel guilty.

What if I am outside the range?

A range is a guide, not a mark. Weight gain varies from one woman to another and from one trimester to another, especially early on with nausea. If you are below or above, talk to your doctor: he takes into account your situation, your diet and the baby's growth before advising anything.

Twins, illness, high-risk pregnancy

These figures apply to most pregnancies. They may differ with illness (diabetes, high blood pressure), a high-risk pregnancy, short stature or a very young or late pregnancy. The doctor then adapts the target. A weight-loss diet in pregnancy is not recommended without medical advice.

Frequently asked questions

How much should I gain in the first trimester?

Usually little: about 0.5 to 2 kg in total. Nausea can even cause slight weight loss with no consequence.

Should I "eat for two"?

No. Energy needs rise modestly, mainly in the second and third trimesters. The quality of the diet matters more than the quantity.

Is BMI reliable?

It is a simple guide that does not take build or muscle mass into account. Your doctor interprets it with your situation.

Is my data saved?

No, everything is calculated in your browser and nothing is sent.

Also of interest

Informational content: it does not replace a consultation. No outcome can be guaranteed.

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