NSC 101 Lecture Notes - Lecture 5: Omega-3 Fatty Acid, Trans Fat, Monounsaturated Fat

• School: University of Arizona
• Department: Nutritional Sciences
• Course: NSC 101
• Professor: Jackson

Document Summary

Types of lipids triglycerides - 9 kcals per gram. Fatty acids differ by carbon chain length, degree of saturation, location of double bond. Types of fatty acids: saturated, monounsaturated (has one double bond), and polyunsaturated (has more than one double bond) Trans - can interfere with membrane uidity and can be detrimental to cell function. Trans = opposite sides, cis = same sides. Names based on where double bond is located on carbon chain. Linoleic acid -> arachidonic acid -> plays a role in in ammation, blood clotting, and blood pressure. Alpha-linolenic acid (ala) is an omega-3 fatty acid -> Veggies, nuts, and the oils derived from them are a good source of essential fatty acids. When buying sh oil, be careful of source (check amount of contamination), and make sure. Epa and dha equal at least 1 gram. Fat is a major fuel source for the body. The body has an unlimited ability to store excess energy as fat.