Lecture 1

Lecture 1 - RDA recommended dietary allowance = 97-98%...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Nutrition is the science of food, diet and digestion, focus on nutrients -> function interaction and balance in relation to health and disease and on the process by which food and nutrients are ingested, absorbed, transported, utilized and excited Composition of a person Male Female Water 62% 57% Fat 15% 22.25% Protein 16% 13% Minerals 6% 5% Carbs 17% of humans Vit 17% also Nutrients: Carbs, fats or lipids, proteins, vitamins, minerals, water Essential nutrients: required by body and not made in sufficient quantities 3 Function of nutrients: 1) Provide energy metabolism 2) Structure eg Ca2+ for bones 3) Regulation glucose affects insulin levels DRIs Dietary Reference intakes: ways to say how many nutrients we need 4 standard of DRI – requires measurable markers is agreed to by Food and Nutrition Board EAR – Estimated avg requirement = 50% level
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: RDA recommended dietary allowance = 97-98% level often RDA = EAR x 1.2 AI Adequate Intake no markers just create an estimate UL Upper Limit Toxic Levels EAR and RDA -> established for different ages, gender, other categories,-avg over several days Vitamin C EAR RDA Male> 19 yrs 75 90 Female > 19 yrs 60 75 DV daily values = simplified RDA and AIs for nutrition labels Calorie unit of energy- the amt of heat required to raise the temp of 1 ml = 1g of water 1 deg C-on food labels, have cal = kCal Rec intake: Carbs 45-60% of total energy intake am 50 Fat 20-30% 33 Protein 10-35 16 23% of American eat 5 or more servings of fruits and veg/day 22% exercise > 30 min/day 40% maintain healthy weight 70% dont smoke 3% do all of these...
View Full Document

This note was uploaded on 04/15/2008 for the course BIBC 120 taught by Professor Crawford during the Winter '08 term at UCSD.

Page1 / 2

Lecture 1 - RDA recommended dietary allowance = 97-98%...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online