Water Soluble Vitamins

Question 1

What are some sources of vitamin c (ascorbic acid)

Answer 1

Fruit- blackcurrants, strawberries, citrus fruits
Veg- cabbages , Tomatoes, Potatoes, green peppers

Question 2

What are the functions of vitamin c (ascorbic acid)

Answer 2

Antioxidant
Prevents scurvy
Essential for collagen formation
Necessary for string bones and teeth
Essential for the absorption of non-haem iron
Builds a string immune stystem

Question 3

What are the effects of deficiencies of vitamin C( ascorbic acid)

Answer 3

Scurvy
Anaemia - poor absorption of iron
Slower healing

Question 4

What is the RI of vitamin C

Answer 4

Children-45mg
adolescents-60mh
Adults-60mg
Pregnancy/lactation-80mg

Question 5

What are the properties of vitamin C (ascorbic acid )

Answer 5

Destroyed by oxygen, light ,alkalis, dry or moist heat and enzymes
Water soluble acidic vit
Affected by metals
Antioxidant

Question 6

What are sources of vitamin B1(thiamine)

Answer 6

Whole grain cereals
Fortified breakfast cereals
Meat
Offal
Eggs
Milk

Question 7

What are the functions of vitamin B1 (thiamine)

Answer 7

Aids metabolism of carbohydrates and fats
Needed for healthy nervous system
Promotes growth and development
Necessary for general good health

Question 8

What are the effects of a deficiency in vitamin B1(thiamine)

Answer 8

Beri-beri in severe cases
Lack of energy
Tiredness and muscle cramps
Stunted growth in children

Question 9

What are the properties of vitamin B1(thiamine)

Answer 9

Water soluble
Destroyed by high temps and alkalis
70% is destroyed in the milling process

Question 10

What are some sources of vitamin B2 (riboflavin)

Answer 10

Meat
Milk
Eggs
Spinach
Offal

Question 11

Functions of vitamin B2(riboflavin)

Answer 11

Involved in the metabolism of nutrients
Needed for healthy skin hair and nails
Works with other bits for a healthy immune stystem
Necessary for healthy mucous membranes

Question 12

Effects of deficiency of vitamin B2(riboflavin)

Answer 12

Sore mouth
Eye infections
Lack of energy
Loss of appetite
Weakness

Question 13

Properties of vitamin B2 (riboflavin)

Answer 13

Water soluble
Destroyed by alkalis
Destroyed by sunlight
Installed at Hugh temps

Question 14

What are some sources of vitamin B6(pyridoxine)

Answer 14

Meat
Offal
Pulses
Green veg
Banana
Yeast
Nuts

Question 15

Functions of vitamin B6 (pyridoxine)

Answer 15

Aids the formation of blood cells
Assist metabolism of protein carbohydrates and fats by acting as a co-enzyme
Promotes healthy skin

Question 16

Effects of deficiency in vitamin B6(pyridoxine)

Answer 16

Anaemia
Convulsions in infants
Worsening of premenstural tension

Question 17

Properties of vitamin B6 (pyridoxine)

Answer 17

Water soluble
Generally stable at normal temperature
Destroyed at high temps
Destroyed by alkalis sunlight and oxygen

Question 18

Sources of vitamin B12 (cobalamin)

Answer 18

Dairy produce
Eggs
Fish
Offal
Meat
Poultry

Question 19

Functions of vitamin B12(cobalamin)

Answer 19

Needed for red blood cells
Aids the metabolism of fatty acids and folic acid

Question 20

Effects of deficiency in vitamin B12(cobalamin)

Answer 20

Fatigue
Shortness of breath
Degeneration of nerve fibres
Prencious anaemia

Question 21

RI of vitamin B12 c(cobalamin )

Answer 21

Children-0.7-1ug
Adolescents-1.4ug
Adults-1.4ug
Pregnancy-1.6ug
Lactation-1.9ug

Question 22

Properties of vitamin B12(cobalamin)

Answer 22

Water soluble
Heat stable up to 100
Destroyed by strong acids alkalis and sunlight

Question 23

Sources of water soluble vitamin folic acid(folate)

Answer 23

Fortified foods
Leafy greens
Wheat germ
Supplements

Question 24

Functions of folic acid(folate)

Answer 24

Manufacturing of DNA and RNA
protects against neural tube defects
Assist B12 in formation of red blood cells
Supports immune stystem

Question 25

Effects of deficiency in folic acid(folate)

Answer 25

Tiredness and fatigue Anaemia in young children and pregnant Risk of neural tube defects such and spina bifida

Question 26

RI of folic acid (folate)

Answer 26

Children-100-200ug Adolescents-300ug Adults-300ug Pregnancy-500ug Lactation 400ug

Question 27

Properties of folic acid (folate)

Answer 27

Water soluble Unaffected by acids Sensitive to alkalis light and oxygen Unstable in cooking

Question 28

Sources of water soluble vitamin niacin(nicotinic acid)

Answer 28

Bread Fortified cereals Meat Offal Tuna

Question 29

Functions of niacin(nicotinic acid )

Answer 29

Necessary for healthy brain and nervous system Promotes growth maintenance of healthy skin Prevents pellagra

Question 30

Properties of niacin (nicotinic acid)

Answer 30

Water so,unkempt Stable to heat acids and alkilis 80-90% lost in milling