Vitamins 1 Flashcards
40 essential micronutrients
Casimir Funk
Founder of Vitamins
vitaminers
similar structures but slightly different chemical structures
How many vitamins have been recognised
13
what are the key functions of vitamins
immune system, gene expression, ATP production, hormones and manufacturing blood cells
what a nutrients that you can survive without
phytonutrients- rainbow colours longer life
where are vitamins absorbed
In the small intestines
what are vitamins?
carbon containing compounds
What are the essential vitamins essential to ATP?
B1, 2, 2, 5
what is B5 essential for?
needed for synthesis of coenzymes
What does vitamiins in food need
Needs activation - they are cofactors proteins that accerelrate reactions
e.g phase 1 liver dextofixation.
what are the two types of vitamins
Fat soluble and water soluble
If you not consume fat you cant absorbed fat soluble vitamins
A< D< E and K
fat soluble
harder to discrete
water soluble vitamins
B and C- completed be depleted quickly
exception b12 as can store in the liver
insufficiency
early signs and symptoms- low in the nutrient- reduction in storage vague symptoms.
- rare for deficiency most common insufficiency.
Patient appears normal but they report not feeling right.
sub-clinical best time to turn symptoms around
Vitamin A
they have different forms and need to be activated in the body.
Retinol - health of the retina
Retinal - Vision (colour) rod/cones enable colour vison
Retinoic Acid- growth DNA level- genetic expression , heart lungs, kidneys
Vitamin A- conversions
Rational can be converted to retinol and acid but not the other way round
what are the two types of Vit A
Pro- vitamin
prefformed
Pro Vit A
beta carotenes can make more Vitamin A
vitamin A where is more bioavailable
Animal sources
tress
oxidation potential of the sun- tress in the autumn turn orange. Chrollphel
Sources of Vitamin A
clave have 50 times more of VIT A than eggs
absorption and conversion
The higher the need for retinal the higher the need by pro- Vitamin A
absorption rates
5-60 % need to have healthy fats as carotenoids are fat soluble