Week 1  Thurs. Apr.7 Topic: Essential Nutrients/Calories Class activity (participation) Add class-pay fees-check class website  Tues. Apr. 12 Topic: Deciphering a food label Bring food label activity to class (see course website)

Nutrition Basics Calories Essential Nutrients

Did anyone read the syllabus?  What was one piece of 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.

Where are Calories found?  Carbon containing (organic) substances wood, oil, paper, alcohol, cloth, coal, trees, hay…..  Calories=energy (nrg) Carbohydrates Lipids (fats and oils) Protein Alcohol…not essential….provides 7 calories/gram All of the above contain carbon FOOD! 4 calories/gram 9 calories/gram

How does nrg (calories) get into food ?  Watch this visual on where Calories (food nrg) comes from.Calories  Most of the dry weight of a plant is from…? carbon dioxide (CO 2 ) in the air!  What is this plant-based ‘CO 2 packaging’ process called? photosynthesis

Photosynthesis Transfer sunlight (solar nrg)  food nrg solar nrg+H 2 O+CO 2  glucose+O 2 Glucose (simple sugar)  contains six carbon atoms from CO 2  basic building block of all carbohydrates  blood sugar  aka glucose or C 6 H 12 O 6

Cellular Respiration Transfer food nrg  ATP (cell nrg) ATP is the chemical fuel of the cell food nrg+O 2  H 2 O+CO 2 +ATP+heat

CO 2 +H 2 O+ NRG PHOTOSYNTHESIS CELLULAR RESPIRATION sunlightglucose ATP + heat food Solar nrg  Food nrg  Cell nrg NRG nutrient+O 2 NRG 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  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.  EN Summary Worksheet is a study guide (keep it!)

Homework  Read the course outline : )  Bring a food ….not candy or gum… label next class  See class website for notes/handouts