FOOD 2150 Lecture Notes - Lecture 2: Spina Bifida, Peptide Yy, Pancreatic Polypeptide
4 Dec 2018
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Document Summary
Classical nutrition- a material was fed with a view to preventing a nutritional deficiency - orange juice prevents scurvy (vitamin c) Optimal nutrition- where the right" nutritional component was identified to control a disease. Fatty acids and cardiovascular disease, folic acid to prevent spina bifida, Molecular nutrition nutrigenomics personalized nutrition according to your genetic make- up. Everyone reacts differently to food (cereals are all fortified with folic acid this is good for some people (pregnant) but not others (with cancer)). Appetite is our psychological drive to eat (behavior) influenced by our surroundings (lighting, plate size, number of people we eat with, etc. ) Low blood sugar triggers homomers and neural impulses to stimulate food intake (npy). Satiation is our short-term drive to stop eating. Satiety is our perception of fullness ghrelin is released from the stomach. Gut-brain axis comprises of the neural immune and endocrine signaling pathways. 3 major peptides neuropeptide y, peptide yy and pancreatic polypeptide.
