Nutrition contribute to health
Improve health status
Prevent diseases
Achieve and maintain weight
Maintain energy and vitality

Nutrition
Promotes wellness
-absence of disease
-physical, emotional and spiritual health

Prevents chronic disease
-a disease characterized by a gradual onset and long duration

Figure 1.2

Figure 1.4

4 primary goals
- help people attain higher quality and longer lives, via prevention of disease, disability, injury, and premature death

-achieve health equity; improve health for all

-Create social and physical environments that promote health

-promote quality of life, healthy development, and healthy behaviors across all life stages
Table 1.1
Class of nutrients
Energy yielding: carbohydrates, protein, fat (macronutrients)

Non-energy yielding: vitamins, minerals (micronutrients) water

Organic: contains carbon and hydrogen

Inorganic: doesn't contain carbon and hydrogen (minerals and water)

Essential nutrients: nutrients the body cannot make or can't make it in adequate amounts and they must be obtained in foods
Example vitamin c

Macronutrientsrge are required in relatively large amounts (grams)
- provide energy/fuel to our bodies
-carbohydrates,lipids,proteins

Alcohol not a nutrient
A drug and A toxin 7 calories per gram

Carbohydrates: primary source of energy for the body. Made up of carbons, hydrogen, and oxygen 4 calories per gram of carbohydrates

Fats and oils: important source of energy at rest during low intensity excersise
Composed of carbon, hydrogen, and oxygen 9 calories per gram

Foods containing fats also provide fat-soul able vitamins

Proteins: support tissue growth, repair, and maintenance
Composed of carbon, hydrogen,oxygen, and nitrogen 4 calories per gram b

Water
- a vital inorganic nutrient supporting all body processes
- fluid balance
Energy production
Nutrient transport

Risk factor
- a condition that increases the likelihood that a particular condition/ disease will develop

Examples:
Smoking- lung cancer
Dietary reference intakes (DRI's)
A set of nutritional reference values for the U.S. And canada that applies to healthy people

Estimated average requirement (EAR)
The average daily nutrient intake level estimated to meet the requirement of half of the healthy individuals in a particular life stage or gender group

Recommended dietary allowances RDA
The average daily nutrient intake level that meets the nutrient requirements of 97 to 98 percent of healthy individuals in a particular life stage or gender

Adequate Intakes AI
Recommended average daily nutrient intake level based on observed or experimentally determined estimates of nutrient intake by a group of healthy people

Tolerable upper intake levels (UL)
The highest average daily nutrient intake level likely to pose no risk of adverse health effects to almost all individuals in a life stage or gender group

Determining nutrient needs
Estimated energy requirement (EER)
- Average dietary energy intake to maintain energy balance in a healthy adult
- Defined by age gender weight height and level of physical activity

Table 1.4 know it

Assessing nutritional status

Understanding of a clients current nutritional status
-weight
-ratio of lean body tissue to body fat
-Intake of energy and