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Glossary of Nutrition Fats

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Created by mstapleton

Lipids:
a diverse group of organic substances that are insoluble in water; lipids include triglycerides, phospholipids, and sterols
Fatty acids-
long chains of carbon atoms bound to each other as well as to hydrogen atoms
Glycerol-
An alcohol composed of three carbon atoms; it is the backbone of a triglyceride molecule
Sterols
Cholesterol (major sterol)
Functions: important physiological function
- Cell membrane, bile, precursor to steroid hormones, vitamin D
-Manufactured by liver: 80%
- Consumed in food: 20%





Saturated Fatty Acids
(SFAs): Fatty acids that have no carbons joined together with a double bond; these types of fatty acids are generally solid at room temperature
Monounsaturated Fatty Acids
(MUFAs): Fatty acids that have two carbons in the chain bound to each other with one double bond; these types of fatty acids are generally liquid at room temperature
Polyunsaturated Fatty Acids
(PUFAs): Fatty acids that have more than one double bond in the chain; these types of fatty acids are generally liquid at room temperature
→ Researchers have concluded that the scientific evidence showing that trans fatty acids negatively affect health is strong. Evidence links trans fatty acid consumption to heart disease.


Lipoprotein:
A spherical compound in which fat clusters in the center and phospholipids and proteins from the outside of the sphere.
Identify the components of the Mediterranean Diet
Why is it popular? Lower risk of CVD for people in Mediterranean countries, changes in focus from low fat to type of fat
Focus foods: Whole grain, vegetables, legumes, feta cheese or plain yogurt, olives and olive oil, fish, fruit, chicken, very little red meat


Triglycerides
Fats and Oils
Digestion of Fats:

Mouth

Minimal (lingual lipase)
Digestion of Fats:

Stomach

Minimal (gastic lipase)
Digestion of Fats:

Small Intestine

Most (Pancreatic Lipase)
Digestion of Fats:

Accessory Organs (3)

1. Liver- produces bile

2. Gallbladder- stores bile

3. Pancreas- produces enzymes



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