L1 Nutrients

NUTRIENTS Glossaries: Nutrient: chất dinh dưỡng Cell: tế bào Substance: chất Healthy food: thức ăn lành mạnh A.. - Food provides energy - Food provides raw materials to make new cells -

NUTRIENTS

Glossaries:

Nutrient: chất dinh dưỡng Cell: tế bào

Substance: chất Healthy food: thức ăn lành mạnh

A Key contents

I Nutrients

We cannot live without food Why? What does food contain to help us survive?

1 Why do we need food?

- Food provides energy

- Food provides raw materials to make new cells

- Food helps us to stay healthy

*Our bodies are made of cells The human body is composed of trillions of cells

2 Nutrients

Nutrients are the chemical substances in the food we eat Nutrients include carbohydrates, fats and proteins

a Carbohydrates

Carbohydrates are found in:

- many nuts (corn, rice, peanuts, cashews, )

- fruits containing a lot of sugar (grapes, oranges, apples, sugarcane, )

- vegetables (potatoes, cabbage, broccoli, carrots, bell pepper,…)

Carbohydrates provide immediate energy to the body Therefore, breakfast is always foods containing a lot of carbohydrates to provide enough energy for us to study and work

b Proteins

Proteins are found in meat, fishes, eggs and milk

Proteins make new cells for body growth and repair worn – out tissues

Gymers need more protein to recover and develop muscles

c Fats

Fats are found in oil, butter, cheese, avocado and peanut

Fats help us reserve energy and prevent the body from losing too much heat

*Polar bears have thick layers of fat to keep their bodies warm

II Diet

1 Healthy and unhealthy food

Healthy foods are considered to be the food items that are rich in nutrition and have a beneficial effect on our overall health

Healthy eating is usually referred to as eating clean meals that provide nutrients and are

important to give you energy, maintain health, and make you feel good

Unhealthy foods can be described as foods that have less nutritional value and are high in fat, sugar, and calories

If a food item is not helping you maintain a healthy weight, it’s considered unhealthy

Food becomes unhealthy due to its preparation method

2 Food pyramid

B Practice

Exercise 1:

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