Micronutrients Flashcards
Micronutrients example
Vitamins
Minerals
Multiple function of micronutrients
Cellular and metabolic - v
Antioxidants - v
Oxygen carriage - m
Bones and teeth - m
Enzyme function - B
Immune and reproductive functions- B
Vitamins
Complex organic compounds
Vital for maintaining health and preventing disease
Required in small quantities mg/micro
How are vitamins made
Provided through diet
Except vitamin D, which is obtained from sunlight on the skin
Small amounts of B vitamin (niacin) made from amino acids called tryptophan
Function of vitamins
Co factors in enzyme activity
Antioxidants- prevent oxygen radicals from doing damage in the cells
Which vitamin is antioxidant
Vitamin E and C
Which vitamin is for vision
Vitamin A
Which vitamin is for bone health
Vitamin D and K
Which vitamin is for blood clotting
Vitamin K
Which vitamin is coenzyme
8 B- vitamins
Classification of vitamins
Fat soluble
Water soluble
Which vitamins are fat soluble
A, D, E, K
Which vitamins are water soluble
B vitamins and C
Where are fat soluble vitamins stored
In fat depot (adipose tissue and liver)
Where are water soluble vitamins stored
Storage is limited
Found in all tissues especially in liver
Fat soluble vitamins absorption
Only absorb in the prescience of fate
Factor affecting absorption will affect fat soluble vitamin absorption
Fat soluble vitamins
Absorbed like fat into lymphatic system
Stored in larger quantities
Less vulnerable to cooking losses
Water soluble vitamins
Absorbed into bloodstream via diffusion
Limited storage in small amounts
Vulnerable to cooking losses
What does DRV stand for
Dietary reference values
Vitamin requirements
Body requires different amount of each vitamin as each has different function tailored to each person, according to their age, gender, level of activity and state of health
What does RNI stand for
Reference nutrient intake
What does NDNS stand for
National diet and nutrition survey
Vitamin A
Important for eyesight
Also strengthens immune system and keeps skin and lining of parts of the body healthy
Vitamin E
An antioxidant that heals prevent damage
