Eating Healthy: Foods for Energy - First Grade Science
Just as an automobile needs gasoline to travel down the road, your body requires fuel to run, think, grow, and repair itself. The fuel that powers your body is the food you eat every day. Food provides energy, vitamins, and minerals that keep your heart beating, your bones growing, and your immune system strong. By learning about the different food groups and understanding how healthy nutrition works, you can make smart choices that give you sustained energy all day long.
The Food Groups: A Balanced Plate
Scientists and nutrition experts organize healthy foods into distinct food groups. Eating a variety of foods from each group ensures that your body receives every nutrient it needs.
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| THE FIVE FOOD GROUPS |
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| GROUP KEY NUTRIENTS EXAMPLES |
| Vegetables Vitamins, minerals, fiber Carrots, broccoli, spinach|
| Fruits Vitamins, natural sugars Apples, berries, bananas |
| Grains Carbohydrates (energy) Oatmeal, brown rice, bread |
| Protein Building blocks (muscle) Beans, eggs, fish, chicken |
| Dairy Calcium, vitamin D (bone)Milk, yogurt, cheese |
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The Balanced Meal Plate
Imagine dividing your dinner plate into sections: Make half of your plate fresh vegetables and fruits. Make one-quarter of your plate whole grains. Make one-quarter of your plate healthy protein. Add a serving of dairy or calcium-rich food and a glass of clean water!
Nutrients and What They Do
Every food is composed of chemical compounds called nutrients. Nutrients perform specific jobs inside your body.
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| MAJOR NUTRIENTS AND THEIR JOBS |
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| CARBOHYDRATES Primary fuel source for quick, active energy. |
| PROTEINS Build and repair muscles, organs, and skin. |
| FATS (HEALTHY) Protect organs, keep body warm, fuel brain. |
| VITAMINS Support immune defense, vision, and healing. |
| MINERALS Build strong bones (calcium) and blood (iron). |
| WATER Carries nutrients, regulates body temperature. |
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Carbohydrates: Everyday Energy
Carbohydrates are like the battery power for your body. Whole grains like brown rice, whole-wheat bread, and oatmeal release their energy slowly and steadily, keeping you alert and active during school and play.
Protein: Muscle Builders
Protein supplies amino acids, which are the microscopic building blocks of your body. When you scrape your knee, grow taller, or run fast, proteins help rebuild tissues and make your muscles stronger. Great sources include beans, nuts, chicken, fish, tofu, and eggs.
Vitamins and Minerals: The Protective Crew
Vitamins and minerals act like your body's shield. Vitamin C (found in oranges and bell peppers) helps cuts heal and fights off sickness. Vitamin A (in bright orange carrots) helps you see well in dim light. Calcium (in milk, cheese, and broccoli) makes your bones and teeth rock-hard!
"Go, Slow, and Whoa" Foods
To help choose foods easily, nutritionists sort foods into three helpful traffic-light categories: Go, Slow, and Whoa.
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| GO, SLOW, AND WHOA FOODS |
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| GREEN LIGHT: "GO" FOODS |
| Eat anytime! Nutrient-dense, fresh, and full of natural energy. |
| Examples: Fresh apples, steamed broccoli, brown rice, water, milk. |
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| YELLOW LIGHT: "SLOW" FOODS |
| Eat sometimes. Have some added sugar, fat, or refined grains. |
| Examples: Baked pancakes, fruit juice, peanut butter with jelly. |
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| RED LIGHT: "WHOA" FOODS |
| Eat only on special occasions in small amounts! Low in nutrients. |
| Examples: Candy bars, soda pop, potato chips, glazed doughnuts. |
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The Power of Water
Your body is about 60 percent water! Drinking plenty of fresh water throughout the day is much healthier than drinking sugary sodas or fruit juices. Water cools you down when you sweat, lubricates your joints, and keeps your brain sharp.
Chapter Review Exercises
Question 1: Name the five major food groups that make up a healthy, balanced diet.
Question 2: What is the main job of protein foods in the body, and what are two healthy sources of protein?
Question 3: Explain the difference between a "Go" food and a "Whoa" food, giving one example of each.
Question 4: Why does your body need calcium, and what foods can you eat or drink to get it?
Solutions and Explanations
Solution 1: The five major food groups are Vegetables, Fruits, Grains, Protein, and Dairy.
Solution 2: The main job of protein is to build, repair, and maintain body tissues, muscles, skin, and organs. Two healthy sources of protein are eggs and black beans (or chicken and fish).
Solution 3: A "Go" food is packed with nutrients, vitamins, and natural energy that you can eat every day, such as fresh blueberries or broccoli. A "Whoa" food is high in added sugar, unhealthy fats, or salt and has little nutritional value, such as a glazed doughnut or soda, which should only be eaten on special occasions.
Solution 4: Your body needs calcium to build and maintain strong, dense bones and hard teeth. You can get calcium by drinking milk, eating yogurt or cheese, or eating dark green vegetables like broccoli.