Contents
Nutrition Fundamentals
How to Understand Calories
How to Understand Nutrients
The Right Balance of Nutrients
The Food Groups
How to Eat a Nutritious Diet Based on the Food Groups
Functional Foods
Healthy Eating at Home
How to Read Nutrition Labels
Healthy Eating Away from Home
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The Right Balance of Nutrients
A healthy diet contains all the nutrients necessary for growth and proper body function. The U.S. government has developed Dietary Reference Intakes (DRI) to provide recommendations for daily intake of the most important nutrients.
The following recommendations are for a healthy adult with a caloric intake of 2,000 calories a day. If your caloric intake is higher or lower than 2,000 calories, or if you’re pregnant or have a health condition, you should talk to your doctor about what your DRI recommendations should be.
Nutrient |
Amount |
|
Total fat |
65 grams (g) |
|
Saturated fat |
20 g |
|
Unsaturated fat |
45 g |
|
Carbohydrates |
300 g |
|
Fiber |
25 g |
|
Protein |
50 g |
Vitamin |
Amount |
|
Vitamin A |
900 micrograms (µg) |
|
Vitamin D |
5 µg |
|
Vitamin E |
15 milligrams (mg) |
|
Vitamin K |
120 µg |
|
Thiamin (B1) |
1.2 mg |
|
Riboflavin (B2) |
1.3 mg |
|
Niacin (B3) |
16 mg |
|
Vitamin B6 |
1.3 mg |
|
Vitamin B12 |
2.4 µg |
|
Vitamin C |
90 mg |
|
Folate |
400 µg |
|
Pantothenic acid |
5 mg |
|
Biotin |
30 µg |
Mineral |
Amount |
|
Calcium |
1,000 mg |
|
Phosphorus |
700 mg |
|
Magnesium |
420 mg |
|
Iron |
8 mg |
|
Zinc |
11 mg |
|
Iodine |
150 µg |
|
Selenium |
55 µg |
|
Fluoride |
4 mg |
|
Sodium |
2,400 mg |
|
Potassium |
4,700 mg |
The DRI guidelines give you a sense of how much of each nutrient you need to eat each day. But of course there’s not enough time in the day to calculate every milligram of nutrients in every bite of food you eat. To make things easier, nutritionists have created the food groups.
| Acknowledgments & Disclaimer |






