mineral
Iron: It is a component of hemoglobin, which can help transport oxygen. Iron deficiency can easily lead to anemia.
Zinc: It affects human development, and zinc deficiency can lead to loss of appetite, growth retardation and dysplasia.
Selenium: It has anti-cancer effect, and selenium deficiency is related to Keshan disease and Kaschin-Beck disease. If you take too much, you will be poisoned.
Iodine: It is an important component of the thyroid gland. Iodine deficiency can cause goiter, and iodine deficiency in children can affect growth and development, causing mental retardation. Too much can also lead to goiter.
Fluorine: It can prevent and treat dental caries. Fluorine deficiency can easily lead to dental caries, while excessive fluoride can cause dental fluorosis and skeletal fluorosis.
dietary fibre
(1) classification:
① Soluble dietary fiber: hemicellulose, pectin and gum; ② Insoluble dietary fiber: cellulose and lignin.
(2) the function of dietary fiber
(1) is beneficial to the digestion process of food; ② Lowering serum cholesterol and preventing coronary heart disease; ③ Preventing the formation of gallstones; ④ Promoting colon function and preventing colon cancer; ⑤ Prevent excess energy and overweight and obesity; ⑥ Maintain the normal balance of blood sugar and prevent diabetes.
(3) Reference intake: The suitable intake for adults in China is 25g/d. ..
(4) Source: The main sources are plant foods, such as cereals, beans, vegetables, fruits and nuts.
Classification of food (mastery)
1. The first category is cereals and potatoes;
2. The second category is animal food;
3. The third category is beans and nuts;
4. The fourth category is vegetables, fruits and fungi;
5. The fifth category is pure energy food (vegetable oil, starch, edible sugar, alcohol, mainly providing energy).
Dietary guide for special people
1. Dietary guidelines for pregnant women
2. Dietary guidelines for pregnant women
3. Dietary guidelines for lactating women
Guide to breastfeeding for 4.6-month-old infants
Guidelines for feeding children aged 5.7 ~ 24 months
6. Dietary guidelines for preschool children (2-5 years old)
7. dietary guidelines for school-age children (6 ~ 17 years old)
8. Dietary guidelines for vegetarians
About the important test center for health managers in 2020: dietary guide, here is an introduction for everyone. I don't know if you have learned it. This is a test center that you must master. At present, it is the period of 1 1, so we must hurry up and choose institutions to register for the exam according to the local actual situation. In addition, the gold content of health managers will be higher and higher in the future, and people who want to apply will want to apply.