NUSC 1165 Lecture Notes - Lecture 3: Antiplatelet Drug, Vasodilation, Coronary Circulation
Document Summary
Nutritional science studies the interaction between living organisms and food. It utilizes chemistry, biology, physiology, biochemistry and food science. Nutrients are important because they keep us alive and healthy and maintain growth & reproduction. Nutrients are chemical substances in foods that provide energy and structure and help regulate bodily processes. A food or diet cannot be healthy because it"s an objective term and cannot be measured. In the american diet there are too many calories, salts and fats consumed and a lack of whole grains, vegetables, fruits, seafood and dairy products. calorie = 1/1000th of a kcal. Energy provided by foods is measured in kilocalories or kilojoules. One type of macronutrient is a carbohydrate. A carbohydrate is a linkage of sugar molecules. They are the preferred fuel source of the brain. Carbs include sugars, complex carbohydrates and fiber. Triglycerides are the most abundant type of fat in foods.
