1 / 35

VITAMIN C

VITAMIN C. THREE GIRLS Anthony, Veronica & Bernice, & A GUY Donna. OUTLINE. OUR SUBJECT IS VITAMIN C DIETARY SOURCES HOW THE BODY USES VITAMIN C CHEMICAL PROCESSES DISEASE. CHEMICAL STRUCTURE OF VITAMIN C.

chiku
Download Presentation

VITAMIN C

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. VITAMINC THREE GIRLS Anthony, Veronica & Bernice, & A GUY Donna

  2. OUTLINE OUR SUBJECT IS VITAMIN C • DIETARY SOURCES • HOW THE BODY USES VITAMIN C • CHEMICAL PROCESSES • DISEASE

  3. CHEMICAL STRUCTUREOF VITAMIN C Vitamin C is also known as ascorbic acid

  4. Vitamin C structure • -OH groups allow solubility in water • makes it easier to excrete when consumed in excess. • -High affinity for binding to many minerals and compounds, i.e., iron and phytates.

  5. Good source of vitamin C

  6. Broccoli, Brussels sprouts, Cauliflower, Cabbage, Mangetout, Green leafy vegetables, Red peppers, Chilies, Watercress, Parsley, Blackcurrants Strawberries, Kiwi fruit, Guavas, Citrus fruit. Vitamin C sources

  7. What is Mangetout?

  8. poor intake of dietary sources cooking or canning of fruit absence of fresh fruit in the diet Dietary Vitamin C Insufficiency

  9. Loss of Vitamin C • COOKING PROCESS DESTROYS VITAMIN C DUE TO OXIDATION. • IN WATER, VITAMIN C REACTS WITH OXYGEN OR OTHER OXIDIZING SUBSTANCES

  10. Seeking vitamin C sources • Consume natural food sources of vitamin C dietary supplements may be used It is better to consume some form of vitamin C, than none at all.

  11. What is the difference between natural food sources of vitamin C and synthetically made vitamin C?

  12. Naturally, vitamin C is derived from glucose SYNTHESIZING ASCORBIC ACID • The Sonoyama method uses enzymes Michael Blaber at FSU

  13. How the Body Uses Vitamin C • Collagen • Anti-oxidant • Hormones • Cardiovascular • Nervous System • Other Functions

  14. Vitamin C & Collagen • Collagen is the most abundant connective tissue in the body. • Vitamin C is vital to the formation of collagen in the body. • Without vitamin C, collagen synthesis is disrupted in the body, and the joints suffer. COLLAGEN

  15. Clinical symptoms of Vitamin C deficiency in scurvy

  16. Free radicals are caused by: smoking bad fats in the diet exhaust fumes in the air Antioxidants consume the free radicals that damage cells, especially T-cells. As a water soluble vitamin, Vitamin C can help neutralize harmful reactions in the watery parts of the body (i.e., blood, intercellular fluid). As an antioxidant, Vitamin C protects LDL, low density lipoprotein cholesterol from the free radical damage. Only when LDL is damaged, can cholesterol lead to heart disease. ANTIOXIDANT PROPERTIES

  17. Hormones • Vitamin C aids in the function of the adrenal gland. • The adrenal gland plays a primary in the endocrine system.

  18. Cardiovascular System By protecting LDL cholesterol, Vitamin C aids in the HDL production • HDL cholesterol helps to promote good circulation and blood pressure • Vitamin C helps prevent heart disease by reducing artery stiffness and the tendency of platelets to clump together

  19. Vitamin C & Nervous System • plays a role in converting tryptophan to serotonin, a vital neurotransmitter • aids in norepinephrine synthesis • enhances conversion of dopamine to epinephrine in the brain

  20. Other functions of Vitamin C • Aids in iron absorption • Activates folic acid • Aids in drug metabolism and detoxification • Facilitates bile formation • Aids in synthesis of amino acid carnitine from dietary amino acids

  21. BENEFITS OF VITAMIN C • wound healing • blood formation • healthy teeth and gums

  22. RDA • CHILDREN 15-25 MG/D • MEN (19-30YRS.) 90 MG/D • WOMEN (19-30YRS.) 75MG/D • PREGNANCY (19-30 YRS.) 85 MG/D • LACTATION (19-30YRS.) 120MG/D Coulston et al., p. 754

  23. -according to Loria et al, Low serum vitamin C is linked to increased mortality rate in men from cancer, but not in women.

  24. Since the human body does not make Vitamin C for itself, people have to consume vitamin C either from food sources or dietary supplements or both. -Vitamin C is a powerful anti-oxidant, which explains its relation to lowering cancer risk

  25. PATHOLOGY OF DISEASE • Deficiency • BARLOW’S DISEASE • SCURVY • AT RISK: • ALCOHOLICS • ISOLATED ELDERLY • MALABSORPTION SYNDROMES • FAD DIETING • INFANTS • SMOKERS

  26. SIGNS & SYMPTOMS of deficiency of Vitamin C

  27. Frequency • In the US & Internationally: Scurvyis rare • Young children (0-6 months usually protected from Vitamin C deficiency, unless mother is deficient). • Those most commonly affected ages are aged 6-18 months; however, adults can also be affected. • The elderly are predisposed to scurvy because of poor diet • Food over preparation (cooking process destroys vitamin C). Vitamin C

  28. Smoking • Tribble et al. studies • Passive smokers have lower levels of ascorbic acid in their bodies. • Smokers have a 40% increase in use of ascorbic acid turnover Packer & Fuchs, p.399

  29. VITAMIN C EXCESS Above2000 milligrams a day MIGHT lead to • diarrhea • kidney stones • joint pains • rash • iron overload • false positive glucose test

  30. Clinical Details of Vitamin C • Normal, total body pool = 1500 mg. Normal plasma level should range from 0.7-1.2 mg/dL.If total levels decrease below 350 mg Scurvy manifests itself within 2-3 months. At least 10 mg/d maintains the total body pool above 350 mg and will prevent scurvy.

  31. Clinical Symptoms include: • Mental confusion, malaise, and fatigue • Hair follicle enlargement • Dry, rough skin • Swollen gums and possible tooth loss • Ecchymoses, small hemorrhages • Costochondral junction problems • Slow skeletal development • Impaired wound healing and ulcer degeneration WHY?

  32. Malabsorption • tobacco use • chronic oxidative stress • hemodialysis • Drug- aminopterin • reduces the vitamin C level in the body.

  33. SOURCES • www.heart-disease-bypass-surgery.com/data/molecular/m9.htm(The 3-Dstructure of Vitamin C) • www.suburbanchicagonews.com/opinions/columnists/gott/c04gott.htm(Suburban Chicago Newspapers) • www.emedicine.com/radio/topic628.htm • http://www.sustaintech.org/pub11.pdf(Sustain- Results Report on Vitamin C program) http://home.caregroup.org/clinical/altmed/interactions/nutrients/vitamin_C.htm(IBIS medical group) http://www.thebody.com/bp/may99/nutrients.htm ( (AIDS and HIV resource site) http://home.howstuffworks.com/vitamin-C.htm(How Vitamin C works) http://www.symmcorp.com/info/vitamin-C.htm(Vitamin C products)

  34. sources • http://www.microscopy.fsu.edu/vitamins/pages/vitaminc.html(ascorbic acid gallery picture) • http://www.acclaimimages.com/_gallery/_pages/0015-0309-1519-3837.html(Stock photography - orange picture) • http://www.tastingarizona.com/pages/foodnews/fj18.html(On-line publication for the food service industry) • http://www.serrins.com/ymotm.html • http://www.wesley.edu/Chemistry/chemistry227/bindprotns/nanoimages/collagen.gif • http://wine1.sb.fsu.edu/research/dkr.html(Dr. Blaber’s web-site) • http://www.vitamincfoundation.org(vitamin C foundation picture)

  35. Paper Media: The Lancet, vol. 357, March 3, 2001 Vitamin C in Health and Disease; Packer, Lester, and Jurgen Fuchs; Marcel Dekker, Inc., New York, c. 1997 Nutrition in the Prevention and Treatment of Disease; Coulston, Ann; Chery Rock, and Elaine Monsen;Academic Press, San Diego, c. 2001 Web: www.nlm.nih.gov/medlineplus/ency/article/000355.htm 2003 Sep;17(9):641-54. PMID: 13679954 [PubMed - in process Scurvy: historical review and current diagnostic approach.Am J Emerg Med. 2003 Jul;21(4):328-32. PMID: 12898492 [PubMed - indexed for MEDLINE http://www.ncbi.nlm.nih.gov/entrez/query.fcgi http://www.perio.org/ http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd http://merck.com/mrkshared/mmanual/section1/chapter3/3q.jsp

More Related