vitamin B3

Question 1

what are the properties of of vitamin B3

Answer 1

-water soluble

-stable to acids and alkalis

-heat stable

-80-90% loss during milling

Question 2

what are the sources of vitamin B3

Answer 2

-bread

-meat and offal

-nuts

-fortified breakfast cereals

Question 3

what are the biological functions of vitamin B3

Answer 3

-aids the metabolism of carbohydrates to release energy

-helps maintain healthy skin

-supports healthy nerve activity

Question 4

what are the effects of deficiency of vitamin B3

Answer 4

-tiredness and irritability due to a lack of energy

-pellagra, a severe deficiency disease. symptoms include dermatitis, diarrhoea, depression, dementia and it can eventually lead to death

-delayed nerve impulses leading to cognitive impairment, e.g. memory loss