HLTH355 Lecture 8: HLTH 355 Public Health Nutrition 8
17 Sep 2018
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Document Summary
What is a calorie: a unit of energy kilocalorie = calorie = 1000 calories kcal = amount of heat needed to raise the temp of one litre of water by one degree. Calorie values of energy-yielding nutrients (macronutrients): carbohydrate: Carbohydrate: supply energy to cells in brain, nervous system, and blood. Carbohydrate: made of carbon, hydrogen and oxygen (cho) held together by energy-containing bonds. Sugars: monosaccharides absorbed directly into the blood. Important fuel for body functions, including nerve cells in brain. Important fuel for body functions, including nerve cells in brain: preferred source: complex carbohydrates. Polysaccharides strands of thousands of glucose units. Glucose molecules linked together but longer and more highly branched chains compared to starch. Variety of foods rich in complex carbs, esp. whole grains. All about sugars: added sugars (those not naturally occurring in a food/beverage) are listed on the nutrition facts.
