Weight gain in pregnancy

Weight gain in late pregnancy should be between 8 and 12 kilograms or so. It is important not only increased but also the total mix. Let's see how it fits the weight gain of a pregnant woman who has a total variation of 12.5 kilograms:

Fetus 3300 g
Placenta 650 g
Amniotic fluid 800 g
Uterus 900 g
Glándula mamaria 430 g
maternal blood 1220 g
* fat 5200 g
Total 12,500 g

* Operates as a reserve energy during pregnancy and lactation.

If we consider these values during the first quarter of weight changes should be minimal, with an increase of 1-2 kg. From then on there is an increase of approximately 1.5 kilograms per month, towards the end of gestation with an increased total weight of about 12 kilograms. IF the total variation is 8 or 10 kilograms, the monthly increases will be reduced proportionately.

During the second quarter, most of the weight gain is attributed to the growth component of the maternal (uterus, breasts, etc..), While in the third quarter is primarily due to growth of the fetus, placenta and the increased volume of amniotic fluid. This underlines the importance of maternal nutrition in the last trimester of gestation, because of its relation to fetal size.