Lesson 2 Healthy Eating in Adolescence

Luoyang no.34 high school

Lee Areum

Lesson 2

Teaching objectives of adolescent healthy diet (1)

1. Let students know the types and functions of nutrients needed for adolescence. 2. Understand the dietary characteristics of adolescence. (2) Teaching emphasis

Types and functions of nutrients needed for adolescence (3) Difficulties in teaching (4) Dietary characteristics of adolescence (4) ppt as a teaching aid.

(5) Introduce new lessons into the teaching process:

Students, you all want to have a healthy body and study and live happily every day. These are inseparable from food. We must eat a certain amount of food every day. But we often make such mistakes in diet because of ignorance and bad living habits, which affects our health. So, let's talk about the topic of "healthy diet in adolescence" now. Adolescence is the rapid development of the body and brain, and it is the key stage of growth and development: the metabolism in the body is accelerated, which increases the body's demand for various nutrients. Dietary nutrition not only contributes to growth and development, but also helps to improve intelligence. Therefore, teenagers should pay special attention to the absorption of nutrients. First, the nutritional needs of adolescence

Adolescence is in a vigorous period of growth and development, and the demand for various nutrients is much higher than that of adults. So nutrition is particularly important. 1. Functions of nutrients

Constitute the body, repair tissues, supply energy, supplement consumption, and regulate physiological functions. 2. Types of nutrients

carbohydrate

Teenagers have a large amount of activities and a large basic demand. Teenagers need 25% to 50% more calories than adults, and they need a lot of extra nutrition to grow and develop. Calories mainly come from carbohydrates, that is, cereals, accounting for 70% of the total calories. Teenagers must ensure enough food. protein

It is the basis of growth and development, and a large number of somatic cells divide and proliferate, all of which are composed of protein.

Teenagers in the growing period need 2-4 grams of protein per kilogram of body weight every day. Protein is mainly supplied by food, such as eggs, milk, lean meat, soybeans and corn. fat

Provide energy for human life activities, and excess fat is stored in human adipose tissue to keep body temperature and prevent mechanical damage. vitamin

Vitamins are essential in the process of regrowth, which can not only prevent some diseases, but also improve the body's immunity. Most of the vitamins needed by human body come from vegetables and fruits.

mineral

Minerals are essential for human physiological activities, especially for teenagers.