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