NUTR331 Lecture Notes - Lecture 7: The Affluent Society, Overconsumption, Niacin

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Dietary lipids have gained much attention in recent years because of growing evidence of their association with chronic lifestyle diseases such as heart disease, cancer, and obesity. They provide the most concentrated form of energy (nine kilocalories per gram of fat) and are the source of essential fatty acids and 0mega3 fats, epa, and dha. As with all nutrients, overconsumption of lipids will result in adverse health effects. In our affluent society, most people tend to consume too much fat especially the types that may contribute to chronic diseases. Key point amino acids link into long strands that coil and fold to make a wide variety of different proteins: key point the body needs dietary amino acids to grow new cells and to replace worn-out ones, 2. Keypoint thebodymakesenzymes,hormones,andchemicalmessengersofthenervous system from its amino acids: key point whe(cid:374) i(cid:374)suffi(cid:272)ie(cid:374)t (cid:272)a(cid:396)(cid:271)ohyd(cid:396)ate a(cid:374)d fat a(cid:396)e (cid:272)o(cid:374)su(cid:373)ed to (cid:373)eet the (cid:271)ody"s e(cid:374)ergy need, food protein and body protein are sacrificed to supply energy.

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