Main sources food and other fish and fish liver oils

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main sources (food and other) fish and fish liver oils does not occur naturally in many other foods besides fish sun exposure; sunshine vitamin 3. Interaction with calcium acts as a hormone to regulate calcium metabolism and blood concentration calcitriol increases absorption of calcium in the intestine active vitamin D and parathyroid hormone decrease calcium excretion by the kidneys must be activated in the kidneys and liver to function in the body 7. Vitamin A 1. main functions (Antioxidant) vision functions as a hormone in cell development immune function growth bone health reproduction function as an antioxidant helps protect cells from oxidative damage caused by reactive molecules called free radicals Vitamin A is a key component of rhodopsin which is required to absorb light and trigger nerve impulses in the brain for vision
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2. main sources bioavailability depends on the food source best source is not carrots! Yellow, orange, and red pigmented fruits and vegetables 3. Retinol Only retinoid is present in significant amounts in our diet It is called preformed vitamin A because it is already in the active form in foods Preformed in vitamin A (retinol) More readily absorbed Animal foods and fortified foods 8. Beta-Carotene 1. Provitamins (Vitamin A) Beta carotene has an important role as a phytochemical with potent antioxidant properties plant form of vitamin A 2. Carotenoid plant form of vitamin A Provitamin A carotenoids Yellow, orange, and red pigmented fruits and vegetables Absorption of carotenoids from food is poor Slicing, chopping, cooking, juicing, and cooking can improve bioavailability 3. Functions function as antioxidant 9. B-Vitamins 1. group functions B vitamins function as coenzymes in chemical reactions that release energy from carbohydrates, proteins, and fats Thiamin : Vitamin B1 energy metabolism synthesis of DNA and RNA production of neurotransmitters Niacin : Vitamin B3 energy metabolism synthesis of glucose, fatty acids, cholesterol, and steroid hormones DNA repair Riboflavin : Vitamin B2 energy metabolism Pyridoxine : Vitamin B6 Acts as a coenzyme Release of glucose from glycogen Amino acid metabolism Metabolizes tryptophan to niacin Helps in production of hemoglobin and neurotransmitters 2. sources Thiamin (B1)
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pork fortified grains Niacin (B3) meats fortified grains Riboflavin (B2) milk and dairy sources Pyridoxine (B6) chicken and pork 3. deficiency issues Thiamin (B1) Beriberi Causes muscle wasting, fatigue, and mental disturbances Wernicke-korsakoff syndrome Causes severe neurological disturbances Alcohol decreases thiamin absorption, increases excretion in the urine, decreases storage in the liver, and decreases conversion of thiamin into its coenzyme Niacin (B3) pellagra fatigue, dermatitis, diarrhea, mental deterioration, death Riboflavin (B2) Ariboflavinosis
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