Nutrition Notes

Lipids
3 kinds
Triglycerides 95% of lipids we take in are these
Phospholipids
Sterols / 5%
They are hydrophobic
** OH = vinegarish end
no duple bonds = saturated fats
double bonds = make up unsaturated fats
2 or more(prenominal) double bonds = polyunsaturated fats
1 double bond = monounsaturated
Triglycerides:
consists of 3 fatty corrosives and glycerol
Consistencies:
Saturated Fat: solid at live temperature
Unsaturated: liquid at room temperature

Hydrogenated (means saturated) fatty acid -> hydrogenated ve pissable oil, seems good but bad for you!

cis (H on very(prenominal) side of double bond.. most unsaturated fatty acids in foods are cis) cis-fatty acids OK.
* Changes cis to trans- aka put hydrogens on opposite ends of double bond. trans-fatty acid BAD
*
* Sterols:
6 6 6 to 5 base analogous to chicken wire

CCK: cholecystokinin
Travels to gall vesica and causes it to contract.. and then releases freshness into menial intestine. Bile breaks fat up into nonaged fats (emulsified fat) so they foundation be attacked
Bile: when impudence enters small intestine, the gall bladder secretes bile.



it then can bring the fat into the water then fats can be broken apart (emulsification)
In the liver, bile is made… in the gallbladder bile is stored.. in small intestine bile emulsifies fats.. bile is reabsorbed into blood.. OR in the colon, the bile that has been trapped by soluble fibers is lost in feces.
Lipoproteins, 4 kinds:
Chylomicrons
Contain little protein; pitiableest in density
V low-density lipoprotein (very low density lipoproteins)
Half triclycerides, accounting for very low density
LDL (low density lipoproteins)
Half cholesterol BAD! HEART indisposition!
saturated fats increase LDL
HDL ( broad(prenominal) density lipoproteins)
Half protein which accounts for their high density
LPL activity: for men, middle. For women, hips and thighs. Many of us have very sprightly LPLs (get fat easily)
Recommended Intakes for Fat
25-35% of daily energy should come from fat...If you want to get a full essay, order it on our website: Orderessay



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