How can we help?

You can also find more resources in our Help Center.

22 terms

Overview of the Science of Nutrition

Substances obtained from food and used in the body to promote growth, maintenance, and repair
6 Classes of Nutrients
1. Carbohydrate
2. Fat
3. Protein
4. Vitamins
5. Minerals
6. Water
Essential Nutrients
Nutrients that must be obtained from food because the body can't make it
Energy (Calorie)-Yielding Nutrients
1. Carbohydrate
2. Fat
3. Protein
Nutrients that don't yield energy
1. Water
2. Vitamins
3. Minerals
Number of calories 1 gram of carbohydrate contains
Number of calories 1 gram of fat contains
Number of calories 1 gram of protein contains
Number of calories 1 gram of alcohol contains
Function of Vitamins and Minerals
Regulate the release of energy and other aspects of metabolism
Function of water in the body
Provides the medium for life processes
Relationship between diet and the leading causes of death
Leading causes of death are chronic diseases (instead of infectious diseases), all of which have dietary components
Any condition caused by an excess, deficiency, or imbalance of calories or nutrients
Calorie or nutrient overconsumption severe enough to cause disease or increased risk of disease; form of malnutrition
Examples of Malnutrition
Deficiency disease (like Pellagra)
Degenerative Disease
Chronic disease characterized by deterioration of the body organs as a result of misuse and neglect
Healthy People 2020
National health promotion and disease prevention agenda for 2010 to 2020; goals focus on risk reduction, and specifies targets for nutrient and food intake
The physiological need for food
The psychological desire to eat, often but not always accompanied by hunger
Factors affecting food choices
Positive associations (social gatherings, celebrations)
Psychological needs (cravings)
Availability (stores nearby)
Income and food prices
Convenience (what is fast, ready-to-eat)
Advertising and the media (commercials, news)
Social and cultural factors
Social Groups
Group of people, such as a family, who depend on one another and share a set of norms, beliefs, values, and behaviors
Knowledge, beliefs, customs, laws, morals, art, and literature acquired by members of a society and passed along to succeeding generations.