Mainly during the development of organs and nerves, folic acid should be supplemented. Green vegetables such as spinach and asparagus are the best sources of folic acid. In addition, broccoli, liver, meat, oysters, salmon, tuna, cheese, milk, eggs and walnuts are also rich in folic acid. It should be noted that expectant mothers should avoid overcooking when handling these ingredients, so as to avoid folic acid being destroyed by high temperature.

2. The second trimester of pregnancy (about 12 weeks later)

When the fetus grows up, the tissues in the uterus also proliferate. At this time, protein and sugar are especially needed to meet the needs of fetal growth, such as meat, fish, milk, eggs, soy milk, tofu and other bean products or other beans, but they should not be excessively increased, and the balanced intake of five nutrients must be taken into account. Don't eat too much high-fat food.

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3. Late pregnancy (about 28 weeks later)

The absorption rate of the fetus will be particularly obvious. At this stage, it is necessary to control the rate of weight increase. At this stage, it is especially necessary to supplement nutrients such as iron and calcium. Iron generally exists in egg yolk, liver and red meat, and some plant foods such as laver are also rich in iron.

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In addition, the supplementary sources of calcium should preferably include animal and plant calcium, including milk, dried fish, cheese and so on. They are all good gourmets. Note: After 8 weeks, starch intake should be specially controlled to avoid excessive intake.

Also pay attention to the principle of "three lows and one high": low oil, low sugar, low salt and high fiber. Try to use fresh ingredients instead of processed products.