Intro To Vitamins Flashcards
(22 cards)
Provitamins are compounds that ….
-can be converted into the bioactive form of the vitamin in your body
What are the following characteristics of vitamins?
-functions are highly specific and needed in small quantities
-food forms usually require some metabolic transformation to functional/bioactive form
-vary chemically and functionally
-do not have structural function and are not catabolized for energy
What is the common name of Vitamin A and give a food source
-Retinol; cod liver oil
What is the common name of Vitamin B1 and give a food source
-Thiamine; Rice Bran
What is the common name of Vitamin C and give a food source
-Ascorbic acid; citrus
What is the common name of Vitamin D and give food source
-Calciferol; cod liver oil
What is the common name of Vitamin B2 and give food source
-Riboflavin; meat, dairy products,eggs
What is the common name of Vitamin E and give food source
-Tocopherol; Wheat germ oil, unrefined vegetable oils
What is the common name of vitamin K and give food source
-Phylloquinone, Leaf vegetables
What is the common name of Vitamin B5 and give food source
-Pantothenic acid; meat, whole grains
What is the common name of Vitamin B7 and give food source
-Biotin; meat, dairy products, eggs
What is the common name of vitamin B6 and give food source
-Pyridoxine; meat, dairy products, eggs
What is the common name of vitamin B3 and give food source
-Niacin; meat, grains
What is the common name of vitamin B9 and give food source
-Folic acid; leaf vegetables
What is the common name of vitamin B12 and give food source
-Cobalamins; meat, organs(liver), eggs
What are the 13 currently recognized vitamins
-A, D, E,K, C, thiamine, riboflavin, Niacin, pantothenic acid, B6, B12, folate, biotin
Vitamins are classified by their
-biological and chemical activity
Define vitamin status
-refers to the degree of balance between supply (this includes intake and body stores) and biological need
-goal: stable, satisfactory or positive status
Define primary vitamin deficiency
-an organism does not get enough of the vitamin from its food
-varied deit will unlikely cause a severe primary deficiency
Define secondary deficiency
-underlying disorder that prevents or limits the absorption or use of the vitamin
-lifestyle factors: smoking; excessive alcohol consumption; use of medications that interefer with the absorption or use of the vitamin
-genetics/SNPs
What are the high risk groups of vitamin deficiencies
-growth and development phases (ex. Pregnant women, infants and children)
-elderly (reduced appetite, impaired absorption, polypharmacy)
Describe the stages of vitamin deficiency
-interruption in source, reduction in body storage (reserves vary), impairments in biochemical functioning, alteration in function/morphology
-result: clinical manifestations; clinical manifestations target every organ
