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Kin 232 > Module 8 > Flashcards

Module 8 Flashcards

1
Q

Define trace minerals

A

Trace minerals: minerals that are required in small amounts, typically under 100 mg per day

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2
Q

List the major trace minerals

A

Iron, iodine, selenium, zinc, chromium, copper, fluoride, Manganese , molybendum

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3
Q

Define major mineral

A

Major mineral: minerals that are required by the body and larger amounts, over 100 mg per day

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4
Q

What are the major minerals

A

Sodium, phosphorus, chloride, calcium, potassium, magnesium, sulphur

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5
Q

What are the functions of iron

A
  1. Oxygen transport and storage – iron is a key component in haemoglobin and myoglobin
  2. Energy metabolism – cytochromes – iron is an essential part of the ETC in the mitochondria, where it helps facilitate ATP production
  3. Immune function – necessary for the development and function of immune cells
  4. Cognitive function and brain health – Neuro transmitter synthesis, adequate iron is crucial for maintaining cognitive function, concentration and memory
  5. Growth and development - iron is essential for proper fetal development, particularly for the development of red blood cells and brain function during pregnancy. Necessary for healthy growth and cognitive development in children
  6.  DNA synthesis and cell division Dash iron is a cofactor of several enzymes involved in DNA synthesis and cell division. Iron is essential for production of red blood cells
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6
Q

What are some sources of iron

A

Ground beef, salmon, chicken, all bran cereal, beans

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7
Q

What are the types of iron

A

Heme and non heme

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8
Q

What is the absorption of iron affected by

A

Boosted by vitamin C
reduced by calcium, phytates, oxalates, tannins (greens, dark leafy greens, tea and coffee)

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9
Q

What is the RDA for Trace minerals

A

Iron
- men: 8 mg
- females: 18 mg
zinc
- men: 11 mg
- females: 8 mg

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10
Q

Who is at risk of iron deficiency

A

Menstruating females, vegetarian or vegan‘s (Recommendations are 80% higher), gastrointestinal diseases, restricted eating, high-performance athletes (Recommendations are 30 to 70% higher)

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11
Q

How is iron deficiency detected

A

We test iron deficiency using a blood test to measure levels of serum ferritin (<30mg) and haemoglobin (<120mg females <110mg men)

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12
Q

What is anaemia

A

Anemia: pathological condition in which the number of red blood cells or haemoglobin within them is insufficient to meet the bodies physiological oxygen carrying needs. Essentially iron deficiency

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13
Q

What are recommendations for iron supplementation

A

generally 100 mg is a good start, taken at night along with 200 mg vitamin C. Takes 6 to 8 weeks to increase serum ferritin stores, and there are side effects of gastrointestinal upset or constipation

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14
Q

Iron salts

A
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15
Q

What are the functions of zinc

A
  1. Immune system – maintains skin integrity, defends against pathogens, promotes wound healing
  2.  Involved in iron metabolism
  3. Essential for metabolism - carbohydrates, proteins, and fats
  4. Gene expression in protein synthesis - Acts as a structural component of transcription factors affecting our genes are expressed
  5. Taste and smell - essential for the proper functioning of taste and smell receptors and may influence appetite. Deficiency is often associated with reduced appetite
  6. Growth and development critical for cell division, DNA synthesis, and overall growth
  7. Helps protect cells from oxidative damage and reduce inflammation
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16
Q

What are some sources of zinc

A

Animal proteins, like crab, beef. Plant-based foods contain zinc but is often with phytate which can inhibit absorption. Soaking, sprouting, and fermenting with absorption

17
Q

What results from zinc deficiency

A

Stunted growth particularly in children and adolescents, hair loss, diarrhea, eye and skin lesions, poor appetite, and delayed sexual maturation. Toxicity suppresses the immune system and results in gastrointestinal symptoms as well as copper deficiency?

18
Q

What are the functions of calcium

A
  1. Bone and teeth health – 99% of the bodies calcium stores are in bones and teeth. Is essential for the development, maintenance, and density of bones and teeth
    2. Muscle contraction - enables the interaction of actin and myosin
    3. Nerve transmission – vital for the release of neurotransmitters at synopsis, allowing for effective communication between nerve cells (neurotransmitter release)
  2. Blood clotting – plays a key role in the blood coagulation process, necessary for the formation of clots to prevent excessive bleeding
  3. Hormonal secretion – involved in endocrine function, including the release of insulin
  4. Cell signalling – acts as a secondary (intracellular) messenger and many signalling pathways
19
Q

What is the RDA for some major minerals

A

Calcium = 1000 mg
Sodium < 2300 mg
Magnesium
- men: 420mg
- women: 320mg
Potassium = (AI) 4700mg

20
Q

What are some sources of calcium

A

Dairy foods, orange juice, soy and almond drinks, tofu, some leafy green vegetables

21
Q

What conditions result from calcium deficiency

A

Osteoporosis and rickets

22
Q

What are the recommendations for calcium supplementation

A

Calcium is best absorbed in 500 mg at a time. Upper level is 2500 mg

23
Q

What occurs in calcium toxicity

A

Hypercalcemia: excessively high calcium levels in the blood, which can lead to various health issues Dash nausea, vomiting, confusion and fatigue or kidney stones.
Constipation particularly if dietary fibre intake his low

24
Q

Define electrolyte

A

Electrolyte: salts that disassociate into ions when dissolved in a solution, allowing that solution to conduct electricity

25
Q

What are the main functions of electrolytes

A
  1. Fluid balance – electrolytes help maintain fluid ounce in the body, regulating hydration levels and osmotic pressure across cell membranes
  2. Acid base balance – they play a crucial role in maintaining the bodies acid base balance, which is essential for proper metabolic function
  3. Signal transmission - beyond muscle contraction and nerve conduction, electrolytes are vital for transmitting signals in the nervous system and are involved in hormonal regulation
26
Q

What does imbalanced calcium levels lead to [different from deficiency or toxicity]?

A

Imbalance can lead to muscle cramps, fatigue, dizziness, confusion, and in severe cases, arrhythmias or seizures

27
Q

What are the functions of sodium

A
  1. nerve function – essential for generating action potentials
  2. Muscle contraction – sodium ions facilitate muscle contraction by allowing deep polarization of muscle fibers. Otherwise known as excitation contraction coupling
  3. Fluid balance – osmoregulation - helps regulate fluid balance in the body by controlling movement of water in and out of cells
  4. Transport of molecules – important for the sodium potassium pump. Sodium is crucial for the active transport of molecules across cell membranes
  5. Blood pressure regulation – important for fluid volume control. Influences blood volume and pressure by affecting how much water is retained or excreted by the kidneys
28
Q

What is the average consumption of sodium in Canada and how much of this consumption is from processed foods

A

Average consumption = 3400 mg. 77% processed foods

29
Q

How much sodium do we lose per litre of sweat lost during exercise

A

1000 mg of sodium or 2.5 g of salt

30
Q

Why is sodium intake vital in exercise

A

Adequate sodium intake is vital for a storing electrolyte balance after intense exercise, helping to prevent cramps and fatigue. Sodium loss and sweat can very significantly among individuals

31
Q

What are the functions of magnesium

A
  1. Cofactor in enzymatic reactions – essential for over 300 ends automatic reactions, including those involved in DNA and RNA synthesis, protein synthesis and energy metabolism
    2. Energy production
  2. Bone Health – plays a significant role in bone mineralization and density
    4. Muscle function – aids in muscle relaxation by balancing calcium levels, which is crucial for preventing muscle cramps
  3. Nervous system regulation – involved in neurotransmitter release and helps regulate nerve function, contributing to overall brain health and cognitive function
32
Q

What are the sources of magnesium

A

Nuts, seeds, green leafy vegetables, whole grains. Almonds and cooked spinach are very high and magnesium

33
Q

What are symptoms of deficiency in magnesium? What is the upper level tolerance

A

Deficiency can cause numbness, tingling and cramps. Upper level is 350 mg

34
Q

What are the functions of potassium

A
  1. Nerve and muscle functioning – essential for transmitting electrical signals and nerves and facilitate muscle contraction and relaxation
  2. Fluid volume regulation – hydration and cell function – maintain salute bones inside and outside of cells which is vital for overall hydration, Health, and nutrient transport
  3. Blood pressure regulation – hypertension management – adequate potassium intake helps counteract sodium effects on blood pressure
  4. Acid-base balance – metabolic function – helps maintain proper pH levels in the body
  5. Electrolyte balance - works alongside sodium and other electrolytes to maintain proper cellular function, which is critical during exercise
35
Q

What are some sources of potassium

A

Fruits and vegetables, legumes and potatoes. Whole wheat flour and brown rice are much higher in potassium than white

36
Q

What situation is can deficiency occur, and what are symptoms of toxicity

A

Deficiency is rare but can happen with vomiting, diarrhoea for laxative abuse. Toxicity is rare since kidneys excrete excess potassium

Kin 232 (5 decks)

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