Food Science

Vitamin Deficiencies – what are the problems?

RDA

• Recommended Daily Allowance– How much you need each day

• If you don’t get RDA– Vitamin deficiency

• Effects on health

• Diseases– Depends on the vitamin

• What is meant by RDA?

Vitamin Deficiencies

• Vitamin A• Vitamin B

• Research vitamin deficiency• Find out

– Symptoms– Why the symptoms occur– Ways to increase intake

• 4 slide powerpoint presentation

• Vitamin C• Vitamin D

Vitamin A Deficiency

• Healthy eyesight and mucous membranes

• Deficiency:– Drying of membranes– Increase in infections– Also poor night vision– Eventual blindness

• Increase intake – raw carrot

Vitamin B Deficiency

• Normally release energy and nerve function

• Deficiency:– Mouth sores– Degeneration of nerve cells– Anaemia – needed for red blood cells

• Increase intake – handful of nuts

Vitamin C Deficiency

• Normally for healthy immune system and skin

• Deficiency:– Soft and bleeding gums– Bruising and nosebleeds– Needed to form healthy blood vessels– Scurvy

• Increase intake – glass of fruit juice

Vitamin D Deficiency

• Normally for healthy teeth and bones

• Deficiency:– Weak teeth– Softened bones– Deformed bones - Rickets

• Increase intake – cereal (fortified) with milk

• Explain the scientific reason for the old wives tale that “Carrots help you see in the dark”.