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HUMNTR Lecture 1 1 8 14 Classes of nutrients o Carbohydrates macro calories of energy o Lipids macro calories of energy o Proteins macro calories of energy Supply calories of energy macro o Vitamins micro o Minerals micro o Micro o Water Phytochemicals zoochemicals Don t need as much but still important o Fatty acids in fish oils not essential but effective o You can live without them but you will live longer and better with them o Lower risk of cancer o Strengthen immune system o Some lower cholesterol o Food component plant animal depends if phyto or zoo o Not essential nutrient o Not made by body or made in limited amounts o Gray distinction conditionally essential nutrient sometimes needed Essential nutrient o Food component o Need for normal function o Not made by the body o You need it but you can t make it Dr D Need fiber but it is not an essential nutrient Dietary Reference Intake DRI o Ongoing and collaborative effort o DRI is group of recommendations o Health Canada and food and nutrition board of institute of medicine US o DRIs RDAs AIs don t worry about it EERs don t worry about it ULs o Recommended dietary allowances Recommended intakes of nutrients that meet the needs of almost all healthy people of similar age and gender What constitutes a need RDAs are NOT the average Average need is in the middle RDA is at 97 5 o RDA groups Age Gender Pregnancy lactation


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OSU HUMNNTR 2210 - Lecture notes

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