1 / 16

Nutrition Basics

Nutrition Basics. Minerals. Why Minerals?. Important for normal metabolism Found in tissues and fluids in the body Macro and micro. Calcium . Important for structure of bones and teeth Has a role in muscle contraction and blood clotting

malik-odonnell
Download Presentation

Nutrition Basics

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. Nutrition Basics Minerals

  2. Why Minerals? • Important for normal metabolism • Found in tissues and fluids in the body • Macro and micro

  3. Calcium • Important for structure of bones and teeth • Has a role in muscle contraction and blood clotting • Sources: Milk and milk products, fortified orange juice, sardines • Adequate Intake is 1,000 milligrams for people between 19-50 years old

  4. Osteoporosis Normal Bone • Common bone disease • Bone tissue becomes weak and porous • Prevention requires exercise and adequate consumption of calcium and vitamin D Osteoporotic Bone

  5. Magnesium • Structural role in bones • Signaling between nerves • Synthesizing proteins • Sources: Nuts, legumes, whole-grain cereals, leafy green vegetables RDA: 700 milligrams for people over the age of 19

  6. Potassium • One of the electrolytes • Balance charges and water concentration across cells • Food Sources: Avocados, bananas, potatoes, dairy products

  7. Sodium • Signal transmission between nerves • Muscle contraction • Sources: Table salt, processed foods, nuts and snacks • Upper level 2300 mg/day

  8. Hypertension • Systolic/diastolic pressures greater than 140/90 mm Hg • Elevated dietary sodium intake • Other endogenous factors

  9. Iron • Part of heme which carries oxygen in blood • Iron deficiency anemia causes tiredness • RDA: 200-400 milligrams per day

  10. Heme and Non heme iron • Heme iron is easily absorbed • Meat, fish, poultry • Nonheme iron poorly absorbed • Dark leafy vegetables, beans, fortified cereals • Non heme iron absorption inhibited by coffee, tea, high fiber foods • Non heme iron absorption increased by orange juice

  11. Copper • Co-factor for enzymes • Food Sources: Organ meats, shellfish, nuts, seeds, legumes, dried fruit • RDA: 900 micrograms

  12. Zinc • Many functions in the body • Necessary for growth and sexual maturation, taste and smell processes • Food Sources: Oysters, wheat germ, liver, whole grains • RDA: 11milligrams for males, 8 milligrams for females

  13. Zinc and the Common Cold • Zinc tablets and lozenges • Zinc kills bacteria – may not do so in the body • Limited evidence for efficacy in colds

  14. Selenium • Antioxidant activity • Food Sources: Grains, meat, poultry, fish, dairy products • RDA: 55 micrograms

  15. Conclusion • Minerals are essential for health • RDAs can usually be met with the minerals present in food • Vary the types of vegetables, whole grains, dairy, and protein that you consume to ensure meeting your needs

  16. References • Advanced Nutrition and Human Metabolism by Sareen S. Gropper, Jack L. Smith, and James L. Groff • http://ods.od.nih.gov/factsheets/selenium.asp • Longnecker MP, Taylor PR, Levander OA, Howe M, Veillon C, McAdam PA, Patterson KY, Holden JM, Stampfer MJ, Morris JS, Willett WC. Selenium in diet, blood, and toenails in relation to human health in a seleniferous area. Am J Clin Nutr 1991;53:1288-94. [PubMed abstract]

More Related