W1 Flashcards
Essential Nutrients
Cannot be synthesised (made) by the body.
E.g. Vitamins, Minerals or Essential Fatty Acids
Non-essential Nutrients
Can be made in sufficient amounts by the body.
E.g. Glucose or Non-essential Fatty Acids
Combining two monosaccharides will =
A Disaccharide
Multiple saccharides =
A Polysaccharide
Up to 10 molecules =
Oligosaccharides
95% of dietary fats =
Triacylglycerol
Triglycerides are composed from…
3 Fatty Acids attached to 1 glycerol
What are Fatty Acids?
Organic chains of Carbon, Hydrogen & Oxygen
How many double bonds do Monounsaturated Fatty Acids have?
How many double bonds do Polyunsaturated Fatty Acids have?
Monounsaturated Fatty Acids have: 1 double bond
Polyunsaturated Fatty Acids have: > 1 double bond
Saturated Fatty Acids =
Saturated = All the Carbons have been saturated (surround) by hydrogens.
If it is unsaturated this means there is a double bond in between the carbons.
Dietary Proteins are composed from =
Carbon, Hydrogen, Oxygen & Nitrogen
- Nitrogen isn’t in CHO or fats
What are proteins made from?
Proteins are made from amino acids in polypeptides
Dietary Reference Values (DRV) of nutrients =
~ (around) 40 nutrients
Estimated Average Requirement (EAR) gives a…
EAR gives a notional mean requirement for the volume of nutrients being consumed.
Reference Nutrient Intake (RNI) is how many Standard Deviation above EAR?
RNI is 2 notional SD above EAR
