Nutrition BasicsCalories
Essential Nutrients
Did you read the syllabus? What was one piece of new information
you learned from reading the syllabus?
What is a Calorie?
Good? Bad?
The amount of heat it takes to raise one gram of water one degree centigrade.
Calories: where are they found? Carbon containing (organic) substances
wood, oil, paper, alcohol, cloth, coal, trees, hay…..
Calories=energy (food energy!) Carbohydrates Lipids (fats and oils) Protein Alcohol…not essential….provides 7 calories/gram
All of the above contain carbon
FOOD!
4 calories/gram
4 calories/gram9 calories/gram
Where do calories in food originate? What is the origin of a plants dry weight?
carbon dioxide (CO2) in the air
What is the ‘CO2 packaging’ process called? photosynthesis
A visual on where Calories (food energy)
come from in food.
PhotosynthesisTransfer solar energy (nrg) food nrg
solar nrg+H2O+CO2 glucose*+O2 *glucose (simple sugar) contains six carbon atoms from CO2
basic building block of all carbohydrates
PhotosynthesisTransfer solar energy (nrg) food nrg
solar nrg+6H2O+6CO2 glucose*+6O2 *glucose (simple sugar) contains six carbon atoms from CO2
basic unit of all energy nutrients
aka glucose or C6H12O6
Cellular respirationTransfer food nrg ATP (cell nrg)
food nrg+O2 H2O+CO2+ATP+heat
CO2 +H2O+ NRG
PHOTOSYNTHESIS
CELLULAR RESPIRATION
sunlight glucose
ATP + heat food
Solar nrg Food nrg Cell nrg
NRG nutrient+O2NRG
transfer
Essential NutrientsWhat does ‘essential’ mean to you?
‘Essential’ in nutrition means: Required for health Must be obtained from our diet What are the essential nutrients?
Non-Essential Nutrients Required for health too! We make enough to our meet needs
creatine, lecithin, cholesterol etc.
EN Activity Purpose: To acquaint you with EN’s and
their food source. In assigned Expert Groups, complete Expert
Worksheet-Turn in today. When prompted, move to Base Group. You will be the ‘expert’ in your Base Group. Complete EN Summary Worksheet as a
study guide All resources acceptable to use.
Homework Read the course outline : ) Bring a food ….not candy or gum… label
next class See class website for notes/handouts