Pregnancy nutrition is the process of providing healthy and balanced food to the expectant mother and her fetus during pregnancy. Proper nutrition plays a crucial role in the health and growth of the fetus and the health of the expectant mother, and determines a large part of the growth and development of the fetus. Here are some keywords that describe pregnant women's nutrition:

1- Nutrients: These include proteins, carbohydrates, fats, vitamins and minerals. These elements are essential for the health of the pregnant mother and her fetus.

2- Iron: Iron is one of the important minerals for pregnant women, as it helps in the formation of blood cells and maintains healthy blood. It is recommended that pregnant women take enough iron to avoid deficiency.

3- Essential Fatty Acids: Essential fatty acids are essential for the health of the pregnant mother and her fetus, as they help in the development of the fetus's nervous system, eye and brain.

4- Vitamins: These include vitamins A, D, E, K, and B-complex. They are essential for the health of the pregnant mother and her fetus, and play an important role in fetal growth and development.

5- Calcium: Calcium is one of the important minerals for pregnant women, as it helps in forming the bones and teeth of the fetus.

6- Water: Water is essential for the health of the pregnant mother and her fetus, as it helps in hydrating the body, cleansing the cells, and relieving the feeling of stress.