190 likes | 315 Views
Note Final Exam-please check final schedule Essays due-lateness unacceptable. Note Nutrition 2106-Fall 2014- Principles of Nutrition in Metabolism Nutrition 2101-Nutritional Assessment-Theory-Fall 2014 Nutrition 2107- Introduction to Sports Nutrition-Winter 2015. Lecture 32- 28 March 2014
E N D
Note Final Exam-please check final schedule Essays due-lateness unacceptable
Note Nutrition 2106-Fall 2014- Principles of Nutrition in Metabolism Nutrition 2101-Nutritional Assessment-Theory-Fall 2014 Nutrition 2107- Introduction to Sports Nutrition-Winter 2015
Lecture 32- 28 March 2014 Nutrition and Disease
Introduction Nutrition can completely prevent or completely cure, partially prevent or partially cure disease
Completely prevent Example-Diseases arising from nutritional deficiency eg blindness and vitamin A Same could be said for toxicity- never take toxic amounts of a nutrient eg calories from any source re: obesity
Completely cure Example-Diseases arising from nutritional deficiency eg blindness and vitamin A deficiency Same could be said for for toxicity- eliminate consumption of toxic amounts of a nutrient- eg iron
Partially prevent Example-atherosclerosis, type II diabetes, cancer -partially because of genetic factors
Partially cure Example-atherosclerosis, type II diabetes -partially because of genetic factors
Atherosclerosis Pathology Plugging of arterial wall with cholesterol and platelets
Atherosclerosis Pathology Lipoproteins High density lipoprotein (HDL) -pulls cholesterol out of arterial wall Low density lipoprotein (LDL) -pumps cholesterol into arterial wall most of cholesterol in the blood is on LDL this is why increased levels of cholesterol in the blood are a concern- ie as blood cholesterol goes up so does LDLc
Atherosclerosis Pathology triglycerides are also a concern as blood triglyceride increases, HDLc goes down and LDL becomes more aggressive in putting cholesterol into the arterial wall so there is a constant competition between HDL and LDL to control levels of cholesterol in the arterial wall
Atherosclerosis Pathology Platelets Cells in blood that are part of the clotting process As blood cholesterol goes up platelets become more active ie stick together more easily This platelet stickiness causes plugged arteries
Atherosclerosis-Nutritionally Can slow or partially reverse atherosclerotic process Diet -eating in accordance with Canada’s Food Guide -keep fat calories percentage of total calories to equal to or less than 30 % and saturated fats calories to equal to or less than 10 % of total calories These dietary measures keeps a good ratio between HDL and LDL and cholesterol and keeps triglycerides and platelet function at normal levels
Atherosclerosis Nutritionally Functional foods – eg fish and flax these keep a good ratio between HDL and LDL and keeps cholesterol and triglycerides and platelet function at normal levels Nutraceuticals- eg flax oil and fish oil- these keeps a good ratio between HDL and LDL and keeps cholesterol and triglycerides and platelet function at normal levels
Type 2 diabetes Pathology Metabolic syndrome-precursor to type 2 diabetes Obesity- body mass index (BMI) (kg/m2) equal to or greater than 30 Increased blood pressure (>140/90) Dyslipidemia- low HDLc, increased triglycerides, aggressive LDL Increasing platelet clumping
Type 2 diabetes Pathology Metabolic syndrome continued Decreased insulin sensitivity-this means that there is trouble with the interaction between the insulin and its receptors on the cells that are having glucose pumped into those cells
Metabolic Syndrome and Type 2 diabetes Nutritionally-pre- and post-onset Diet-Follow that stated above in terms of diet for atherosclerosis Additionally this controls weight, blood pressure, plasma lipid levels, platelet aggregation levels and increases insulin sensitivity
Metabolic Syndrome and Type 2 Diabetes Functional foods-pre- and post-onset Canola and fish Can partially alleviate Leading edge research- flax seed
Metabolic Syndrome and Type 2 diabetes Nutraceuticals Canola oil, fish oil