Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Unit 4 Seminar HW205 Vitamin Classifications and Your Health Daniela Messina, DC, MS, L.Ac Unit 4 Expectations Initial discussion responses due Saturday additional two due by Tuesday, Midnight. Quiz due by Tuesday, Midnight Flex Seminar & Option 2 [email protected] Learning Objectives • understand the primary uses of the water soluble vitamins • learn the purpose and benefits of supplementing with these vitamins • be able to identify food sources of the nutrient • know the RDA level along with common dosages and forms of supplementation that are commonly used • understand the potential safety and precaution issues Focus of seminar • Review of basic foundation concepts related to vitamins • Review of fat soluble vitamins • Review of water soluble vitamins • Discussion of vitamin classifications according to function True or False • The only documented benefit of consuming sufficient amounts of vitamins is protection against deficiency diseases. True or False • Vitamins provide energy? True or False • Vitamin C is found only in citrus fruits. • Nearly all cases of illness due to excessive intake of vitamins result from the overuse of vitamin supplements. • What are vitamins? • Vitamins are chemical substances that perform specific functions in the body. • They are essential nutrients because the body cannot produce them. • If we fail to consume enough of a vitamin, a specific deficiency disease will develop. • 13 vitamins have been discovered so far. Vitamins Classifications • Two main categories: water soluble and fat soluble • Groupings by function for health: bone health, energy metabolism, heart health, immune function, skin health, tissue building, eye health, antioxidants. Water-soluble vitamins • Vitamin C (ascorbic acid) • B-complex vitamins – Thiamin (B1) – Riboflavin (B2) – Niacin (B3) – Vitamin B6 – Folate (folacin, folic acid) – Vitamin B12 – Biotin – Pantothenic Acid – *Choline * Water-soluble vitamins • Not stored in the body (except B12); excreted in urine • Deficiency symptoms will show up in a few weeks or months if not present in the diet. • Only Niacin, B6 and Vitamin C are known to produce ill effects if consumed in excessive amounts. Fat-Soluble vitamins • Vitamin A (retinol) – Beta carotene is provitamin A • Vitamin D • Vitamin E • Vitamin K Fat-soluble Vitamins • Stored in body fat, liver and other parts of the body • Deficiencies take longer to develop than water-soluble vitamin deficiencies • Toxicities can develop if taken in large quantities What do vitamins do? • B-vitamins are coenzymes – Enable reactions to take place in the body – Like the key that unlocks the door – Very little needed because it’s not used up in the process – Thiamin, niacin, riboflavin all needed for reactions concerning energy release – B6, folate, B12 all needed for reactions concerning building tissues & heart health What do vitamins do? • Vitamin C – Manufacture of collagen – Fight infections, repair wounds – Antioxidant – Increases iron absorption • Vitamin A – Maintains mucus membranes – Needed to see in dim light – Beta-carotene is an antioxidant What do vitamins do? • Vitamin E – Antioxidant – Reduces plaque sticking to arteries • Vitamin D – Needed to absorb and utilize calcium and phosphorus in bones, muscles, and nerves • Vitamin K – Needed to help the blood clot What else do vitamins do? • Vitamin A – Adequate intake lessens complications from measles- given with children in developing nations with measles vaccine – Vitamin A deficiency is the leading cause of blindness in the world – Vitamin A is used to treat acne and other skin disorders (topical) What else do vitamins do? Immune function & heart health • Vitamin C – May lessen symptoms and duration of a cold – Doesn’t reduce how often colds occur – High blood levels of vitamin C and heart health: lower total cholesterol, lower triglycerides, higher HDL, lower blood pressure What else to vitamins do? Brain & spinal cord development Heart health • Folate – Adequate intake during early pregnancy prevents neural tube defects in babies – Reduces risk of developing heart disease by reducing levels of homocysteine • Thiamin (B1) – Energy production & CHO metabolism – Nerve cell function: DM, Crohn’s, MS Antioxidants • Rust preventers in the body – Oxygen damages cells and causes free radicalsmay cause cancer and other disorders – Antioxidants protect cells from oxidation, just like painting metal prevents rust • Vitamin C • Vitamin E • Beta Carotene (pre-Vitamin A) Do you need vitamin supplements? • Vitamins are readily available from a variety of foods (especially fruits and vegetables) • Needs can be increased due to environmental toxins, stress, and illness • Focus on whole unprocessed foods first and supplement as warranted for health and prevention of chronic disease. Summary • Heart Health: Vit C, E, B6, B12, folate, niacin • Tissue building: B6, B12, folate • Eye health: Vit A, C • Skin health: Vit A, C • Energy metabolism: B-vitamins • Nerve cell function: B1 (thiamin) • Immune function/antioxidant: C, E, betacarotene • Bone health: D, K Mom was right! Eat your vegetables and fruits! [email protected]