The fastest growth of the fetus in the belly is 3 weeks, and the pregnant mother will be smarter when supplementing these nutrients!

During the development of the fetus in the mother's body, the nutritional needs of the fetus are also different at different stages. According to studies, fetal weight gain is fastest in the later stages of pregnancy, especially between weeks 27 and 40 of pregnancy.

In the third trimester, fetal weight gains much faster than in the first trimester, especially in the last few weeks of pregnancy, fetal weight gains very rapidly, sometimes even gaining more than half a pound per week. This is because the fetus has completed the development of organs and tissues at this stage and has begun to accumulate fat reserves in order to maintain the energy needed to stay alive after birth.

To support the healthy growth and development of the fetus in the mother's body, pregnant women need adequate nutrition throughout pregnancy. In the third trimester, pregnant women need to pay special attention to the following nutrients:

1. Protein: Protein is an important nutrient needed for fetal development. Later in pregnancy, pregnant women need to consume more protein to support fetal growth and development. It is recommended that pregnant women consume 70-100 grams of protein per day, which can be obtained by eating meat, fish and shrimp, eggs, beans and other foods.
2. Calcium: Calcium is an important nutrient that the fetus needs to form bones and teeth. In the third trimester, the fetus needs more calcium to accumulate components of bones and teeth. It is recommended that pregnant women consume 1000-1300 mg of calcium per day, which can be supplemented by eating dairy products, legumes, green leafy vegetables and other foods.

1. Fatty acids: Fatty acids are important nutrients needed for fetal nervous system development. Pregnant women need to consume enough omega-3 and omega-6 fatty acids to support the nervous system development of the fetus. It can be obtained by consuming fatty acid-rich foods such as fish, nuts, olive oil, flaxseed, etc.
2. Iron: Pregnant women need more iron to support fetal and own blood production. It is recommended that pregnant women consume 30 mg of iron per day, which can be supplemented by eating lean meats, legumes, green leafy vegetables, dried fruits and other foods.

In addition, pregnant women should also pay attention to maintaining adequate water intake and avoid foods high in salt, sugar, fat, caffeine and so on.