NTR_300_minerals___trace_minerals

NTR_300_minerals___trace_minerals - Fundamentals of...

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Fundamentals of Nutrition Minerals and Trace Minerals (macro- and micro-minerals) NTR 300 Dr. WH Turnbull Unless otherwise stated, all slides and information are derived from: Food Nutrition & Diet Therapy and Krause's Food & Nutrition Therapy, 11th 12th Edns ., 2004 & 2008. By Perspectives in Nutrition, 7th Ed., 2007. By Wardlaw & Hampl, Publ. Mc Graw Hill
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Objective To have a basic knowledge of mineral and trace mineral (macro- and micro- mineral) classification; function, requirements and food sources; deficiencies/toxicity; related substances .
Background image of page 2
3 Major Minerals - Calcium Calcium – most abundant mineral in body. Minerals in the bone are in constant state of flux. Hydroxyapatite – chief crystal of bone, formed from Ca, P. Ca also plays a role in tooth formation.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4
Background image of page 4
5 Calcium in Body Fluids ~ 1% of body’s calcium is in the fluid that bathes and fills the cells(intra- and extracellular). Regulates transport of ions across cells membranes (nerve transmission). Maintains normal blood pressure. Essential for muscle contraction (heart beat). Allow secretion of hormones, enzymes, and neurotransmitters. Essential in clotting of blood.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6 Calcium Balance Blood calcium regulated, not by daily calcium intake, but by hormones sensitive to blood calcium (parathyroid hormone). Can go without adequate Ca for years and not suffer noticeable symptoms. Only later in life do you discover that your Ca “savings account” has dwindled. Your skeleton can no longer be maintained. Bone loss = Osteoporosis.
Background image of page 6
7 Bone Loss Bone loss in adulthood is widespread. To protect against it, high Ca intakes early in life are recommended. Ca-poor diet during growing years may prevent attainment of peak bone mass. Body quietly increases the absorption of Ca from intestine and prevents Ca losses from kidneys, thus conserving it.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
8 How Much Ca Do I Need? Ca absorption varies with age, Vitamin D status, Ca in diet, and Ca binders in foods. Recommended intakes are high for young people and old people. Obtaining enough Ca during young years ensures peak bone mass. Obtaining enough Ca later in life helps minimize bone losses throughout life.
Background image of page 8
9 From: www.calciuminfo.com
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
10 Sources of Calcium Animal Cheese Milk Sardines or other fish with bones Plant Broccoli Turnip greens, spinach etc. Tofu Black-eyed peas
Background image of page 10
11 Bone Disease Osteoporosis - women after the menopause are at greatest risk. Osteomalacia - due to vitamin D deficiency Rickets - due to vitamin D deficiency and can be found in children . Causes bow legs and protruding abdomen.
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Major Minerals - Phosphorous Second most abundant mineral in the body. ~85% of P is found combined with Ca in
Background image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/21/2011 for the course PUBH 1517 taught by Professor Paula.goldberg during the Winter '11 term at Life Chiropractic College West.

Page1 / 51

NTR_300_minerals___trace_minerals - Fundamentals of...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online