Nutrition Concepts (CH1) Flashcards
Food is the…
basic need of humans
Humans need…
enough food to live and the correct assortment of foods for optimal health
Food Security
People have access at all times to sufficient supply of safe nutritious food that are needed for an active and healthy life
Food Insecurity
Exists wherever the availability of safe nutritious food or the ability to acquire nutritious food in socially acceptable ways is limited or uncertain
Food provides…
energy and other substances needed to grow
Calories:
unit of measurement
Nutrients
chemical substances in food that are used by the body to sustain growth and health
6 categories of nutrients
Carbohydrates Protein Fats Vitamins Minerals Water
Other substance Phytochemicals
Substances in plants some perform important functions in the human body
ex: antioxidants; chemical that prevent/repair damaged cells caused by exposure to oxidizing
We all need the same nutrients, just in different…
AMOUNTS (vary based on: age, sex, growth, body size, genetics, disease, pregnancy/breastfeeding, drugs, environmental exposure – can influence requirement )
Essential nutrients-
Nutrient that is required for growth and health that the body can not produce or produce enough
Non-essential
Nutrients that can be found in food but the body can produce them
We all need the same nutrients but not always in the same amounts:
Dietary Reference Intake (Nutrition Intake Standards)
Provide recommended intake levels of essential nutrients and safe upper level of intake – daily levels of intake not only meet the nutrition levels of most people(97%-98%) but also promote health and help reduce the risk of chronic diseases
Adequate Intake (Nutrition Intake Standards)
Best estimates of nutrient intake levels that promote optimal health
Tolerable Upper Intake Levels (Nutrition Intake Standards)
Estimates of safe upper limits of nutrient intake do not represents the recommended or desired levels of intake