"Rational Diet and Food Safety" PPT

Description

"Rational Diet and Food Safety" PPT

Part One: Situation Import

Malnutrition and overnutrition among students

The National Student Physical Health Survey found that the malnutrition rate among students aged 7 to 18 was 26.9% (boys) and 38.3% (girls). The situation of overnutrition among students aged 7 to 18 is also increasing year by year, especially among urban boys, the number of overweight and obese is as high as 12.03%.

learning target

1. Give an example of what a reasonable diet is.

2. Give examples of food safety in daily life.

3. Design nutritious and reasonable recipes.

Reasonable diet and food safety PPT, part 2 content: course exploration

Explore the topic 1

Reasonable meals

1. Caption: Eat healthily and eat smartly

Three disadvantages of “foreign fast food”

A large number of studies have shown that the root cause of the long-term harm of cancer in developed countries lies in the "high-calorie, high-fat, high-protein" diet.

2. Reasonable diet

1.What categories do nutritionists classify foods into?

2. What is the reasonable energy ratio of three meals a day?

3. What should teenagers in the growth and development period pay attention to in their daily diet?

4. What kind of diet is a reasonable diet?

Interpretation of the Pagoda of Balanced Diet

1. Proportional characteristics of food intake: most cereals and least oils.

2. Principles that should be followed in diet: a variety of foods, mainly cereals; eat more vegetables, fruits and potatoes; eat milk and soy products every day; regularly eat appropriate amounts of fish, poultry, eggs, and lean meat, and eat less fatty meat and Meat oil.

3. Diet combination of three meals a day

The Chinese Nutrition Association proposes that three meals, namely breakfast, lunch and dinner, should be distributed in the ratio of 30%:40%:30% to provide the energy required throughout the day. In fact, it follows the traditional "eat well in the morning, eat well at lunch, and eat well in the evening". Eat less” concept.

4. Dietary Guidelines for Teenagers

1. Eat more cereals to provide sufficient energy.

2. Ensure the intake of fish, meat, eggs, milk, beans and vegetables.

3. Participate in physical activities and avoid blind dieting.

Explore topic 2

food safety

1. Analyze the food packaging bags (boxes) collected by your group

1. What should we pay attention to on food packaging bags?

Regarding nutritional ingredients, whether there are additives, production date, shelf life, manufacturer and manufacturer address, etc.

2. How to determine whether packaged food has expired?

Based on the production date and shelf life indicated on the food packaging, you can determine whether the food has passed its shelf life.

2. Caption: Food safety

3. Green food

1. What is green food?

Foods produced in a good ecological environment, pollution-free, safe, and of high-quality nutrition are collectively called green foods.

2. Logo:

Reasonable diet and food safety PPT, part three: training to meet standards

1. The following is a recipe for three meals a day designed for a classmate.

Breakfast: Fried dough sticks, steamed buns, roasted shredded potatoes

Lunch: Rice and stir-fried vegetables

Dinner: Hanamaki, pastries, porridge, pickles

(1) The main nutrient lacking in this recipe is ( ).

(2) Substances of type ( ) should be added to the diet. After these substances enter the digestive tract, they will eventually decompose into ( ).

2. In order to save time, some students always have Western fast food or fried food for lunch every day. Do you agree with their approach? Why?

Disagree. Because the consequence of doing so is excessive intake of energy, but no intake of nutrients such as inorganic salts and vitamins.

3. Analyze and answer according to the diagram

(1) The food that people consume the most every day should be the food that contains more ______.

(2) The food that people consume the least every day should be the food that contains more ______.

(3) Teenagers should consume more foods containing more ______ than adults every day, that is, foods in the _____ and ____ layers of the pyramid.

4. Stop believing that vegetables with “worm” holes are safer!

Some people say that vegetables and fruits with "bug eyes" contain less pesticides. Please make a scientific evaluation of this statement.

This statement is unscientific. Just because there are "bug eyes" on vegetables and fruits does not prove that pesticides have not been sprayed. Vegetables with "worm eyes" may be caused by pesticides being used after the insects have appeared on the vegetables, or the insects may not be killed by pesticides.

Keywords: Beijing Normal University Edition Biology PPT courseware for seventh grade volume 2 free download, reasonable diet and food safety PPT download, .PPT format;

For more information about the PPT courseware "Human Nutrition, Reasonable Diet and Food Safety", please click on the Human Body Nutrition PPT, Reasonable Diet and Food Safety PPT tab.

"Rational Diet and Food Safety" PPT teaching courseware:

"Rational Diet and Food Safety" PPT teaching courseware Part One: Learning Objectives 1. Explain the concept and meaning of a reasonable diet. 2. Try to design a more nutritious recipe. Important and difficult points 1. Key points: the significance of a reasonable diet. 2. Difficulty: Design..

"Rational Diet and Food Safety" PPT courseware download:

"Rational Diet and Food Safety" PPT courseware download Part One: New Lesson Introduction The types and contents of nutrients in different foods are different. People's dietary structures and eating habits are different, so the nutrients they obtain are different. In order to meet the needs of growth and development...

"Rational Diet and Food Safety" PPT download:

"Rational Diet and Food Safety" PPT Download Part One Content: Course Knowledge Points Knowledge Point 1 Nutritional evaluation prompts whether the diet is reasonable. To achieve a reasonable diet, you must first understand your own nutritional status. The evaluation method is generally to measure your height (m) and weight (kg..

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Update Time: 2024-09-09

This template belongs to biology courseware Beijing Normal University Edition Seventh Grade Biology Volume 2 industry PPT template

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