The pre-pregnancy period is the stage of preparation for pregnancy. It is very important for women who are preparing to become pregnant to supplement adequate nutrition, which can help increase the pregnancy rate and promote the healthy development of the embryo. In the early stages of pregnancy, women should focus on a balanced diet and consume appropriate amounts of vitamins, minerals and protein. Below are some important nutrients to supplement during pregnancy. Folic acid: Folic acid is one of the most important nutrients during pregnancy. It helps prevent fetal neural tube defects such as spina bifida and cerebrospinal meningitis. It is recommended to start supplementing with folic acid 3 months before pregnancy, with a daily intake of 400-800 micrograms. Folic acid can be consumed through foods such as green leafy vegetables, legumes, cereals and yeast. Calcium and Vitamin D: Calcium and vitamin D are important for bone health, especially during pregnancy. Women should start supplementing with adequate calcium and vitamin D early in pregnancy to support the fetus\’s bone development. Calcium can be obtained through foods such as dairy products, yogurt, cheese and fish. Vitamin D can be supplemented through sun exposure and food, such as cod liver oil and eggs. Iron: Iron is one of the nutrients that requires special attention during pregnancy. Pregnant women need more iron during pregnancy to meet the needs of their fetus and themselves. Iron deficiency can lead to anemia and other health problems. It is recommended to start supplementing with enough iron in the early stages of pregnancy, which can be consumed through food, such as red meat, poultry, fish, beans and green leafy vegetables. 40 Week Pregnancy Care Guide electronic version mobi+epub+azw3+pdf Protein: Protein is an important nutrient necessary for good health and development. During the first trimester, women should consume enough protein to support the healthy development of the embryo. Protein can be consumed through foods such as meat, poultry, fish, legumes and nuts. In addition to the above important nutrients, you should also pay attention to adequate intake of vitamin A, vitamin C and vitamin E during pregnancy. These vitamins are important for maintaining good health and the proper functioning of the immune system. You can get these vitamins through food, such as carrots, vegetables, fruits and nuts. In addition, some unhealthy foods and drinks should be avoided or limited during the first trimester, such as processed foods, high-sugar foods, caffeine, and alcohol. These foods and drinks may have adverse effects on the development of the embryo. All in all, nutritional intake in the early stages of pregnancy is very important for pregnancy preparation and the healthy development of the embryo. Women should pay attention to a balanced diet and consume enough folic acid, calcium, vitamin D, iron and protein. In addition, you should also pay attention to adequate intake of vitamin A, vitamin C and vitamin E. Through reasonable dietary planning, you can provide a good development environment for the embryo, increase the chance of conception, and lay a solid foundation for maternal health.