The body mass index before pregnancy is the body mass index, which is often used to estimate the weight standard of pregnant mothers during pregnancy. We can also calculate it through a simple formula.
Body mass index = weight (kg) ÷ height (m)?
For example, if the bird's body mass index = 50 ÷ (1.6×1.6) = 19.5, then the bird's body mass index is equal to19.5.
Pregnant mothers' body mass index before pregnancy can be divided into three categories: lean, standard and super heavy.
Then you know whether you need to gain weight before pregnancy, and there is a growth range.
Body mass index before pregnancy:
Thin type: body mass index = 18.5 and below.
It is suggested to gain weight during pregnancy 12KG- 15KG.
Thin mothers may not gain weight during pregnancy because of physical reasons. Therefore, it is very important to improve the quality, eat more high-quality food and pay attention to a balanced and diverse diet when the quantity may be insufficient.
Standard type: body mass index = 18.5 to 22.9.
It is suggested to gain weight during pregnancy 10KG- 14KG.
Standard mothers usually weigh within the standard range, and the most common mistake during pregnancy is to eat a lot to make up for it, so that they gain weight quickly. It is recommended that my mother check her weight more at ordinary times and adjust it if she finds that she is gaining weight quickly.
Obese type: body mass index =23 or above.
It is recommended to gain 7KG- 10KG during pregnancy.
Obese mothers are overweight and prone to gain weight during pregnancy, so they will gain less weight during pregnancy. Too much body fat will also affect the baby's development, so it needs to be checked frequently to prevent pregnancy complications.
Where did all the weight gain go?
Don't think that every weight you gain is on your baby, it's only a small part! And your blood, muscles, body fluids and tissues are also increasing to support the growth of the fetus.
Before pregnancy, the uterus weighed about 50g. At full term, the average weight of uterus is 1000g, and the weight of placenta is 450 ~ 650g g. The amniotic fluid volume reached 1000ml in the 38th week of pregnancy, and decreased to 800ml in the 40th week of pregnancy. Maternal blood volume reached its peak at 32 ~ 34 weeks of pregnancy, increasing by about 30% ~ 45%. At 40 weeks of pregnancy, the average fetal weight was 3 150g.
The root cause of excessive weight gain during pregnancy
1, worried about the baby's nutrition, in line with the principle of "one person to eat, two people to supplement", many pregnant mothers are always worried that the fetus is not nutritious enough, and even pregnant mothers want to add nutritional supplements without authorization, which is actually wrong. Food is not about how much you eat, but about whether you eat it right or not.
2, do not understand the importance of weight management, think that weight management does not matter, some pregnant mothers will think that weight management is no big deal, obesity will not affect the baby, leading to obesity during pregnancy. Too thin pregnant mommy thinks there is nothing wrong with returning to the pre-pregnancy state easily, which is wrong.
3, lethargy, and lack of exercise, due to the influence of hormones, pregnant mommy sometimes has lethargy, plus being spoiled by her family after pregnancy, rarely doing housework, and pregnant mommy rarely creates opportunities for exercise, leading to a slow rise in weight.
I don't know how to control my weight. Some pregnant mothers know the benefits of weight control, but eating is the type of obesity. Such a pregnant mother exaggerates that "drinking water can grow meat." They watch their weight gain but can't control it. Except for headaches, they let their weight gain.
I have tried very hard, but I still can't control it. I have been trying to control my weight during pregnancy, but I still can't control it. On the one hand, I am obese. On the other hand, I haven't worked hard enough, plus sleepiness and insufficient exercise, and my weight is easy to rebound.
6, eating habits are not good, like to eat high-calorie food, this kind of pregnant mommy, the gods are also difficult to save them, like high-calorie food, even the thin mother before pregnancy can hardly guarantee that she will not gain weight.
How to control the weight of pregnant women
1. Remember that daily meals should be high in protein and low in calories. Milk and dairy products, tofu and natto all contain high protein.
2. The essential nutrition of pregnant women is basically absorbed through diet. As for snacks, they can be regarded as part of dinner, but they can't completely replace dinner. Try to choose low-calorie ones.
3, do not hunger strike during pregnancy, be sure to eat three meals a day, otherwise the fetus may be malnourished.
Proper exercise and rest are very important, but you should consult a doctor before starting the exercise plan. If you don't have the habit of exercise, walking is the safest for yourself and your fetus.
Try to absorb nutrition from a balanced diet every day. Nutritional supplements such as folic acid and iron should be used only when the daily diet is not fully provided. "I don't want to be too fat to eat dinner. I use nutritional supplements to supplement my nutrition." This idea is wrong.
6. Diet foods are forbidden, because many diet foods contain ingredients that stimulate the intestines, which will cause diarrhea and have adverse effects on themselves and the fetus.
Pregnant mothers see which of the following table is their body mass index, and then control their weekly weight gain rate in the middle and late pregnancy and the overall weight gain range throughout pregnancy through daily diet and exercise.