HLTB11H3 Lecture Notes - Lecture 11: Dual-Energy X-Ray Absorptiometry, Royal Aircraft Factory F.E.2, Alcoholism

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yellowdonkey422

27 Mar 2019

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Minerals in the canadian diet: natural sources, processed foods. Sodium- 100: phytate (phospohorus compound found in whole wheat/grains), oxalate, tannins. Phytate: grains => ca, zn, fe, mg. Oxalate: spinach & other vegetables => ca& fe. Tannins: tea & coffee => ca & fe. Legumes, some green veg (broccoli, bok choy) ; a stem of broccoli = to about 1/2 cup of milk: role in metabolism. 1-2% of body weight (bw); 99% in bones, teeth. Transmission of chemical & electrical signals: consequence of de ciency. Decreased absorption of iron, zinc and magnesium. Blood calcium concentration (s-10: calcium levels in the blood must be maintained in a very narrow range. Intake of ca does not affect blood ca concentration. When calcium intake is low, calcium is taken from bone to maintain blood ca. If calcium intake is high, ca absorption decreases: low blood calcium. Adults w/ vitamin d de ciency: as low as 10%

Related Questions

Can someone please help me answer these true or false questions and please give rational for each question? thank you

1. Most people have an inadequate intake of fluid?

2. All minerals consumed in excess of need are excreted in the urine?

3. Sodium is the most plentiful mineral in the body?

4. An increase in sodium intake is associated with an increase in blood pressure?

5. Calcium supplements are a safe and effective way to ensure an adequate calcium intake?

6. Foods high in sodium tend to be low in potassium and foods high in potassium tend be low in sodium?

7. Major minerals are more important for health than trace minerals?

8. For most people, thirst is a reliable indicator of fluid needs?

9. Trace mineral balance is strongly influenced by interactions with other minerals and dietary factors?

10. A chronically low intake of calcium leads to hypocalcemia?

Fluoride is sometimes found in high concentrations in ground andsurface waters. Fluoride, in low concentrations, is often added todrinking water to minimize dental cavities, but in higherconcentrations fluoride can pose a health risk. Two minerals thatmay control the concentration of fluoride ion in solution arefluorite (CaF2) and villiaumite (NaF).

a) Write the expressions for and calculate the solubilityproducts of these two minerals at 25 degrees celcius.

b) The following table gives the composition of the relevantspecies in fluoride-rich ground waters from Ghana:

Species Concentration (mg/L)

Ca2+ 25.3

Na+ 23.9

F- 2.3

Could either of these minerals be present in the aquifer systemand therefore contribute to the fluoride concentration of thegroundwater at 25 degrees Celcius? What about at 15 degreesCelcius?

1 focuses onnutrients involved in bone health. How is blood calcium regulated,and how are our bones affected in the process? What are some goodways to incorporate calcium into our diets? How would you advisesomeone with lactose intolerance?.... i.e., what foods could theyeat to get the recommended amounts of calcium? What other nutrientsare important in bone health? Your friend's grandmother just brokeher hip, and is asking you- so just what is osteoporosis, anyway?Who is at risk? What sorts of dietary and lifestyle habits increaserisk? Decrease risk?

Your answers/explanations?

2 Iron deficiency anemia isthe most common vitamin/mineral deficiency in the United States,especially among young children, teens, and women of childbearingage. What form of iron is most absorbable? Explain. What are somefood sources rich in iron?

What would youadvise a vegetarian to do in regards to optimizing blood levels ofiron? Discuss foods to eat, foods/nutrients that enhance ironabsorption, and foods/minerals/compounds that compete with or blockiron absorption.
The Nutri-Case looks at the case of Liz, whodoesn't eat red meat. Do you think she is at risk for irondeficiency? Other micronutrient deficiencies? Why or whynot?

blushporcupine949

HLTB11H3 Lecture Notes - Lecture 11: Dual-Energy X-Ray Absorptiometry, Royal Aircraft Factory F.E.2, Alcoholism

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