vitamin a sources, caroteneiods, vit a, dna

vitamin a sources, caroteneiods, vit a, dna - Vit A sources...

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

View Full Document Right Arrow Icon
Vit A sources Carotenoids - dark gree veggies - red orange veggies Vit A recommendations DNA - retinol activity equivalents (RAE) o Retinol 1 microgram of retinol= 1 microgram RAE - CArotenoids o 12 microgram beta carotene= 1 RAE o 24 alpha carotene= 1 RAE o 24 beta cryptoxanthin= 1 RAE Vit A in Supplements International units (IU) - 1 microgram RAE= 3.33 IU retinol - (look at slide on internet!!!!) Vit A deficiency - decreased intake o early symptoms major problem in countries….stored in tissues in particularly the liver…it takes 1 to 2 years of inadequate intake for symptoms eyes don’t recover quickly from bright lights…Night blindness. .dont have enough Vit A in eye to replenish it. . increased infections (epithelial cells)- cells are unhealthy, and don’t protect against infections - Late symptoms o Xeropthalmia, affects the cornea of your eye…deficiency leads to xerosis and you become blind. .you can also have Bitot sponts where Keratin is a protein and is abnormally deposited in your eye. .also Kertomalacia which
Background image of page 1

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

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

This note was uploaded on 03/19/2008 for the course NTR 311 taught by Professor Lydiasteinman during the Spring '08 term at University of Texas at Austin.

Page1 / 4

vitamin a sources, caroteneiods, vit a, dna - Vit A sources...

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