What is nutrition? Macronutrients Micronutrients Calories

 It is the science behind how your body uses the components of food to grow, maintain and repair itself.  Your body needs more than 50 nutrients on a daily basis in order to function properly  The 50 nutrients belong to one of 6 general categories: Carbohydrates, Fat, Protein, Minerals, Vitamins and Water.

 Main supply of energy – up to 50%  4 calories (energy) in each gram of CHO  Come in 3 basic forms: 1. Simple and Refined Carbs 2. Complex Carbs 3. Fibre Using text pgs make notes on the above.

 All CHO are broken down into simple sugars (glucose)  Excess CHO intake can lead to high blood sugar  this could lead to hypertension, atherosclerosis and heart disease

 Very large molecules made of amino acids (AA)  22 AA  9 cannot be synthesized by the body – called essential, and MUST be consumed through food  4 calories (energy) in each gram of PRO

 Ideal intake of PRO is 0.8g/kg of body weight  Essential to growth and repair of muscle and other body tissues Using text pgs add to these points, including high and low quality protein sources

 Fats fuel you with the most amount of energy – 9 calories in each gram of fat  They help your body grow and keep your skin looking healthy  Excess amounts will increase cholesterol  leading to obesity, heart disease, diabetes and even cancer