1. THE DIGESTIVE SYSTEM
Reading Guide

2. Nutrition Within Digestive System
A calorie is used to measure the potential energy in foods.
Metabolic activities are the chemical & physical reactions that occur in organism that serve to keep it alive.
Heart beating
Breathing
Digesting foods
Thinking
Production of hormones, enzymes, cells, proteins, ect
And more!
The sum of these activities is referred to as metabolism

3. Basal Metabolic Rate (BMR)
The amount of energy required to sustain a person’s metabolic activities (metabolism) for one day if he or she is at rest.

4. BMR is influenced by… Age Gender Height Body mass Body fat percentage
To calculate your TOTAL CALORIES needed you will also have to factor in activity levels!

5. MACRONUTRIENTS Carbohydrates = ENERGY Sugar, starches
Fruit, bread, pasta, rice, cereal
Protein = Muscles, Enzymes, Hormones, Hair, Nails, EVERYTHING has proteins
Meat, cheese, eggs, fish, nuts, beans, milk (yes...it’s high in protein!)
Fat (Lipids) = STORED energy, hormones
All oils, lard, butter
Unsaturated, Saturated, Trans- Unsaturated

6. Vitamins
Organic (HAS carbon!) chemicals that are needed for your metabolism to function normally.
Two Types of Vitamins
Water Soluble – Dissolves in water.
B – Vitamins and Vitamins C
If consumed in excess, these vitamins will be eliminated in your URINE.
Fat Soluble – Dissolves in fat
Vitamin A, D, E, K
If consumed in excess, these vitamins will be STORED in your fat and over time accumulated and build-up a toxicity.

7. Minerals
Inorganic (no carbon) chemicals that the body needs in relatively small amounts, but are still essential
Both vitamins and minerals are considered micronutrients.