Did you read the syllabus? What was one piece of new information

you learned from reading the syllabus? Any questions about the class?

Nutrition Basics

CaloriesEssential Nutrients

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? Organic, carbon containing substances

wood, oil, paper, alcohol, cloth, coal, trees, hay…..

Calorie (energy) sources relevant to nutrition Carbohydrates Lipids (fats and oils) Protein Alcohol…not essential….provides 7 calories/gram

FOOD!

4 calories/gram

4 calories/gram9 calories/gram

Calories: where do they originate andhow do they get into food? Think plants. What is the origin of most of

their organic matter (dry mass)? carbon dioxide (CO2) in the air we breathe

What is the ‘CO2 packaging’ process called? photosynthesis

A visual on where Calories (organic

matter) 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 building block of all carbohydrates

Cellular respirationTransfer food nrg ATP (cell nrg)

food nrg+O2 H2O+CO2+ATP+heat

CO2 +H2O+ NRG

PHOTOSYNTHESIS

CELLULAR RESPIRATION

sunlight glucose

ATP food

Solar nrg Food nrg Cell nrg

NRG nutrient+O2NRG

transfer

Essential Nutrients

What 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 Work in assigned Expert Group. 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 (keep as

study guide for Exam1) Text, classroom texts, peers, instructor,

internet OK to use.

Homework Read the course outline : ) Bring a food ….not candy or gum… label

next class See class website for notes/handouts