Weight Gain In Pregnancy

During pregnancy every woman is faced with inevitable changes of your body. Among the most obvious is the increased weight, caused not only by the presence of the fetus in growth, but also for water retention, increase in circulating blood volume, fat gain, increased muscle mass, etc.

The mother’s weight before pregnancy, your body mass index (BMI), the pattern of weight gain and total weight gain during the 9 months of pregnancy are factors that interfere directly as the weight, the length and the reserves of fat of the newborn.

The weight and the fat reserves are important, because they can have a great impact on the health of the baby in the short and long term, influencing the risk of the child developing health problems such as diabetes, hypertension and cardiovascular disease.

Gestational weight gain also has impacts on mother, since women who gain excessive weight during pregnancy have a higher risk of becoming obese or worse the your preexisting already overweight.

In this article we will explain what is considered a healthy and desired weight gain during pregnancy when wearing maxi skirt. We will explain also the risks of excessive and inadequate weight gain.

Factors That Promote Weight Gain In Pregnancy

When a woman gets pregnant, your body undergoes many changes, being the weight gain and increased the most obvious silhouette. If we were to count only the weight of the baby, it would be expected that the mother presented an increase of minimum weight, around 3.5 pounds. However, the weight of the fetus corresponds only to a fraction of the total maternal weight gain.

When A Woman Gets Pregnant, The Following Factors Collaborate To Increase The Weight:

Average weight of the fetus: 3.2 to 3.6 kg.

Increased body fat reserves: 2.7 to 3.6 kg.

Increase in circulating blood volume in the body: 1.4 to 1.8 kg.

Fluid retention: 0.9 to 1.4 kg.

Weight: 0.9 kg amniotic fluid.

Increase in weight of the breasts: 0.45 to 1.4 kg.

Increased uterine weight: 0.9 kg.

Placental weight: 0.7 kg.

This means that a pregnant woman with a normal body weight before pregnancy should earn, on average, around 11 to 14.5 kg by the end of the pregnancy.

Except in cases of diseases of pregnancy, as in pre-eclampsia, where there is a higher-than-normal buildup of fluids, most of the factors listed above does not vary much from one pregnancy to another. Usually, that defines the differences between the weight gain between two pregnant women is increased fat reserves, i.e. how much each pregnant fattening.

Ideal Weight Gain In Pregnancy

The recent decades, considered ideal weight gain in pregnancy has changed a lot. In the Decade of 1930, when medicine was practiced still more personal opinion and base of theoretical logic, the OBS indicated a maximum gain of 7 kg during pregnancy. The food restriction was a common obstetric practice for years and was based on the belief that excessive gestational weight gain led to the development of pre-eclampsia and other obstetric problems.

In the Decade of 1960, obstetric indications began to be guided by scientific studies. This time, the work began to show that such restriction of weight gain in pregnancy increases the risk of infants with low birth weight or with neurological problems. From then on, the weight gain recommendations have become more liberal. Still, until the Decade of 1980, most obstetricians even recommended a maximum gain of 11 kg during pregnancy. In 1990, the guidelines have changed again, and the appropriate gestational weight gain was stipulated between 11 and 16 kg.

In the last 20 years, however, a growing amount of scientific studies of quality began to show us that the gestational weight gain could not be treated as a cake recipe that served equally to all women. In 2009, so new global guidelines were established, determining the ideal gestational weight gain should vary according to body mass index (BMI) of women before pregnancy. In this way, women too thin could fatten up more pounds in pregnancy than women have previously overweight (read: HOW to CALCULATE the BMI-body mass index)

The 2009 Guidelines Still Are Worth So Far And Provide That:

1-Weight Gain For Pregnancy Fetus Indicated Only:

BMI less than 18.5 kg/m2 (low weight) → gestational weight gain is desired between 12.5 and 18.0 kg.

BMI between 18.5 and 24.9 kg/m2 (normal weight) → gestational weight gain is desired between 11.5 and 16.0 kg.

BMI between 25.0 and 29.9 kg/m2 (overweight) → desired gestational weight gain between 7.0 and 11.5 kg.

BMI greater than 30.0 kg/m2 (obesity) → desired gestational weight gain between 5.0 and 9.0 kg.

2-Suitable For Pregnancy Weight Gain With Twins:

BMI less than 18.5 kg/m2 (low weight) → the studies haven’t been able to produce sufficient data to which a value can be indicated.

BMI between 18.5 and 24.9 kg/m2 (normal weight) → gestational weight gain is desired between 16.8 and 24.5 kg.

BMI between 25.0 and 29.9 kg/m2 (overweight) → desired gestational weight gain between 14.1 and 22.7 kg.

BMI greater than 30.0 kg/m2 (obesity) → desired gestational weight gain between 11.4 and 19.1 kg.

Most of the weight gain in pregnancy occurs on the second and in the third quarter. In the first trimester, weight gain is minimal, ranging from 0.5 to 2.0 kg. Not only there is no need to put on weight at this stage, how hard it is to do it, since it’s in the first few weeks of pregnancy the woman usually have nausea and vomiting often (read:NAUSEA and VOMITING in PREGNANCY). From the second trimester of pregnancy, weight gain speeds up, and should be around 0.5 kg per week.

The term “eating for two” during pregnancy is a myth that should not be pursued. Just an increase of 200 to 300 kcal per day in the diet for pregnant women can achieve the goal of 0.5 kg per week. Pregnant women should eat small portions several times a day is not indicated a fast greater than 4 hours during the period the woman is awake.

Previously obese women should not attempt to do very restrictive diets during pregnancy. If you haven’t lost weight before, not now, pregnant, that should do it. The advisable is to have a healthy diet, avoiding only the exaggerations in calories, sugar and fried foods. The goal of the overweight pregnant is not weight loss, but keep your gestational weight gain within the range indicated.

Consequences Of Gestational Weight Gain Excessive Or Insufficient

The guidelines on gestational weight gain for 2009 were established after the evaluation of 150 scientific studies published between 1990 and 2007.

Among the evidence found in this review we can highlight the following facts:

-The greater gestational weight gain, the greater the risk of pregnant women need to undergo a caesarean birth (read: BIRTH by CESAREAN SECTION | Advantages and risks).

-Women with gestational weight increase less than the desired present greater risk of having small babies with low birth weight and a higher risk of having premature births. On the other hand, women with gestational weight gain above the desired present greater risk of having big babies, and high birth weight, a phenomenon called human (babies who are born with more than 4 kg).

-On average, for every pound of gestational weight gain, the baby weight increases your weight between 16.7 and 22.6 grams.

-Women who gain excessive weight during pregnancy have a higher risk of not being able to go back to your original weight after birth. Women previously overweight and who gain weight excessively in pregnancy have a higher risk of becoming obese or worse to your existing obesity. 40% of women with high gestational weight gain remains, months after childbirth, with about of 8 to 10 kg overweight they had before getting pregnant.

-Excessive gestational weight gain has also been associated with an increased risk of gestational hypertension, preeclampsia and gestational diabetes (read: GESTATIONAL DIABETES | Risks, symptoms and diagnosis).

-Excessive gestational weight gain increases the risk of childhood obesity, diabetes and hypertension in children.

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