FN - Foods & Nutrition FN 30300 Lecture Notes - Lecture 3: Dietary Reference Intake, Overnutrition, Mypyramid

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Lecture 3 Chapter 2 part 1
What Is Healthy Eating and What Tools Can Help?
Key principles of healthy eating:
Balance
Variety
Moderation
Undernutrition: state of inadequate nutrition
Overnutrition: excess nutrients and/or calories in diet
Malnourished: long-ter outoe of osuig diet that does’t eet utriet eeds
Can result from both under- and overnutrition
Tools to help avoid under- and overnutrition:
Dietary Reference Intakes (DRIs)
Nutrient recommendations
Dietary Guidelines for Americans
General dietary and lifestyle advice
MyPyramid and MyPlate
Food group recommendations
Daily Values on food labels
What Are the Dietary Reference Intakes?
DRIs tell you how much of each nutrient you need
to consume to:
Maintain good health
Prevent chronic diseases
Avoid unhealthy excesses
Issued y U.S. Natioal Aadey of Siees’ Istitute of Mediie
Updated periodically based on latest scientific research
DRIs Encompass Several Reference Values
Estimated Average Requirement (EAR):
Average amount of a nutrient known to meet the needs of 50 percent of
individuals of same age and gender
Starting point for determining the other values
Recommended Dietary Allowance (RDA):
Based on the EAR, but set higher
Average amount of a nutrient that meets the needs of nearly all individuals (97
to 98 percent of group)
Adequate Intake (AI):
The best estimate of a nutrient that groups of similar individuals should consume
to maintain good health.
Value is a approximate amount
Tolerable Upper Intake Level (UL):
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Document Summary

Overnutrition: excess nutrients and/or calories in diet. Malnourished: long-ter(cid:373) out(cid:272)o(cid:373)e of (cid:272)o(cid:374)su(cid:373)i(cid:374)g diet that does(cid:374)"t (cid:373)eet (cid:374)utrie(cid:374)t (cid:374)eeds. Can result from both under- and overnutrition. Dris tell you how much of each nutrient you need to consume to: Issued (cid:271)y u. s. natio(cid:374)al a(cid:272)ade(cid:373)y of s(cid:272)ie(cid:374)(cid:272)es" i(cid:374)stitute of medi(cid:272)i(cid:374)e. Updated periodically based on latest scientific research. Average amount of a nutrient known to meet the needs of 50 percent of individuals of same age and gender. Starting point for determining the other values. Based on the ear, but set higher. Average amount of a nutrient that meets the needs of nearly all individuals (97 to 98 percent of group) The best estimate of a nutrient that groups of similar individuals should consume to maintain good health. Highest amount of nutrient that is unlikely to cause harm if consumed daily. Consuming amount higher than the ul daily may cause toxicity. Recommended ranges of intake for energy-containing nutrients:

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