HES 2823 1st Edition Lecture 17 Outline of Last Lecture I Vitamins A Purified Diet and Early Understanding of Nutrition B Characteristics of Vitamins C Fat Soluble Vitamins 1 Vitamin A Outline of Current Lecture I Fat Soluble Vitamins continued A Vitamin A continued 1 Deficiency 2 Food Source 3 Toxicity Current Lecture I Fat Soluble Vitamins continued A Vitamin A continued 1 Deficiency a The body can store months supplies so this is relatively rare b Night blindness inability to see in dim light i Compounds sensitive to the wavelength of dim light are the first to fail with this condition ii Reversible upon intake of vitamin A if no long term damage has already occurred c Xeropthalmia dry cracked cornea causing light entering the eye to scatter and miss the retina i Irreversible and causes blindness ii Cornea becomes cloudy or bumpy iii Leading cause of blindness within the world 2 Food Source a Liver b Beta carotene rich sources yellow orange pigment i Carrots ii Sweet potatoes iii Cantaloupe iv Papaya These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute v Mango vi Apricot vii Persimmons viii Pumpkin pie c Fortified sources the addition of a nutrient above what is naturally present milk 3 Toxicity too much intake a This vitamin can kill a human when taken in excess b Acute 50x the Recommended Daily Allowance RDA i Through pills and supplements ii Cerebral spinal fluid increases involume and thus pressure builds from the inside out iii It begins with a headache which becomes delirium and can then cause a coma and even death
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