Minerals: Essential Micronutrients Flashcards

(44 cards)

1
Q

Micronutrients vs. Macronutrients

A

Macronutrients — Fats, Proteins, Carbs, Alcohol — Needed in Grams

Micronutrients — Minerals — Needed in milligrams

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2
Q

RDA

AI

UL

A
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3
Q

Factors that Affect Micronutrient Requirements

A
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4
Q

Major Minerals

A
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5
Q

Trace Minerals

A
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6
Q

Minerals exist as?

How are minerals Absorbed?

What happens to unabsorbed minerals?

A
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7
Q

Low Bioavailability

A
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8
Q

High Bioavailability

A
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9
Q

Minerals of Concern in American Diet

Major Minerals vs. Minor Minerals

A
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10
Q

Sites of Calcium

A
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11
Q

Roles of Calcium

A
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12
Q

Site of Calcium Absorbtion

A

Small Intestine is the most

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13
Q

Mechanism of Calcium Absorbtion

A
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14
Q

Bioavailability and Absorption of Calcium

A

30% of Calcium is Absorbed but range is 10-60% based on Need

Best Absorbed in Acidic Conditions

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15
Q

Regulation of Plasma Calcium

A
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16
Q

Dietary Sources of Calcium

Know the Top 3

A
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17
Q

Osteoporosis

A
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18
Q

Hypercalcemia

19
Q

Iron Classification

20
Q

Roles of Iron

21
Q

Iron Absorption

22
Q

Mary JO 50 yrOld nurse is lactose intolerant worried about risk of osteoporosis:

Take calcium carbonate with Meals (500 mg twice a day)

Take calcium citrate at bedtime (1000mg)

A

Mary JO 50 yrOld nurse is lactose intolerant worried about risk of osteoporosis:

Take calcium carbonate with Meals (500 mg twice a day) — calcium is best absorbed in an acidic meal — Most efficient absorption in multiple doses.

Take calcium citrate at bedtime (1000mg)

23
Q

Your patients condition of hyperparathyroidsims causes concern about the potential for:

Hypercalcemia

Hypocalcemia

Hypovitaminosis D

No Concern

A

Your patients condition of hyperparathyroidsims causes concern about the potential for:

Hypercalcemia

Hypocalcemia

Hypovitaminosis D

No Concern

24
Q

What is the main iron regulatory hormone?

(Upregulated when low.)

A

Hepsidin is main iron regulatory hormone

25
Amount of Dietary Heme vs. non-heme iron
About 10% of dietary iron is heme iron 90% is non-heme Iron. — There’s a difference in absorption
26
Absroption, transportation, storage, and excretion of Iron
27
Absorption of Iron
28
Enhanced Absorption of Non-Heme Iron
MFP -- Meat, Fish, Poultry
29
Reduction of Iron Absorption
30
Absorbed Iron Requirements
Small Numbers because this is not nutritient requirement (RDA) this is absorption which for iron is about 10%
31
Dietary Sources of Iron
Animal Sources are better source for trace minerals
32
High Risk Populations for Iron Deficiency
Infants and Toddlers (High Growth Rate) Older Adults (less gastric acidity)
33
What food Group is a poor source of Iron
Milk and Milk Products
34
Signs and Symptoms of Iron Deficiency
35
Treatments for Iron Deficiency
36
Hemochromatosis
More Likely in Men
37
Signs and Symptoms of Iron Overload
38
Treatments for Iron Overload
Avoid supplements and avoid highly fortified foods Avoid Iron and Vitamin C Supplements
39
Roles of Magnesium
Magnesium is regulated simply by absorption and secretions
40
Dietary Sources of Magnesium
Chocolate is also a dietary source
41
Causes of Magnesium Deficiency
42
Signs and Symptoms of Magnesium Deficiency
43
Magnesium Toxicity
Blank =Supplements or Medications
44
Focal Points