nutrient to nutrient interactions Flashcards

1
Q

zincs relationship with A

A

zinc makes retinol binding protein (RBP)
RBP moves A from liver storage to tissues for use
zinc also needed to convert retinol to retinal

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2
Q

if vit A deficiency, check which mineral

A

zinc - they may have A but not be able to use it

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3
Q

A modulates metabolism of what mineral

A

iron metabolism

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4
Q

what effect does A have on RBC formation

A

low A = defective RBC formation = issues with iron storage release

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5
Q

what two nutrients should you treat iron deficiency anaemia with for best results

A

iron and A

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6
Q

which 4 micronutrients are cofactors for thiamin metabolism

A

manganese
zinc
magnesium
EFAs

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7
Q

Which 4 nutrients is riboflavin involved in the metabolism of

A

Folate
B6
K
B3

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8
Q

Which 4 micronutrients may bind to riboflavin and reduce it’s bioavailability

A

Copper
Zinc
B3
C

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9
Q

which 3 micronutrients are cofactors for synthesis of niacin from tryptophan

A

B6, B2 iron

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10
Q

metabolism of pyridoxine is strictly dependant on

A

riboflavin

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11
Q

D is essential for absorption of which 2 minerals

A

calcium

phosphate

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12
Q

what effect does C have on E

A

rejuvenates oxidised E

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13
Q

what relationship does selenium have with E

A

selenium-dependant enzyme glutathione peroxidase rejuvenates oxidised E

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14
Q

large doses of which 2 bits may inhibit K absorption

A

A & E

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15
Q

What relationship does K have with D

A

K acts as shuttle to transport D to bones for ^ calcium absorption - prevents calcification in rest of body

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16
Q

what micronutrient removes the methyl group from folate, preventing the ‘folate trap’

A

cobalamin

17
Q

supplemental folate ^350mcg/day may impair absorption of what

A

zinc