Note Final Exam-please check final schedule Essays due-lateness unacceptable

Note Nutrition 2106-Winter Principles of Nutrition in Metabolism Nutrition 2104-Introduction to Nutrition- Fall 2015 Nutrition Introduction to Sports Nutrition-Winter 2016

Lecture March 2015 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 keep cholesterol and triglycerides and platelet function at normal levels Nutraceuticals- eg flax oil and fish oil- these keep a good ratio between HDL and LDL and keep 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/m 2 ) 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