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In this course, I'll refer back to the 
idea that we are what we eat. 

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When we stop and think about the science 
of nutrition, we find this is literally 

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true. 
Human beings are a very diverse species. 

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But all humanbeings, young and old, male 
and female, of all cultures and 

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ethnicities, have to eat. 
Specifically what, how, and why we eat 

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may differ, but, at a microscopic level, 
the food we eat, is all made up, of 

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chemical elements. 
Carbon, Hydrogen, Nitrogen, Calcium, 

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Phosphorous, Sodium, all found right on 
the periodic table. 

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So in a sense, food is chemistry, healing 
a bio-chemical organism. 

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The foods we choose to eat may look 
different, taste different, provide 

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different nutrients. 
And be more or less healthful, but 

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whether animal or plant in origin, Our 
food is comprised, of tissues, cells, 

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chemical compounds, and elements. 
These tissues, cells, chemical compounds, 

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and elements, are broken down by our 
bodies metabolic processes, to be 

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utilized in building new cells Tissues, 
synthesizing enzyme hormones, generating 

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energy, or, maybe stored, or eliminated 
completely. 

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During growth and development, as well as 
through adulthood, you need to eat to 

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provide new metabolic resources. 
So next time you sit down to eat, or grab 

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a bite running from a to b Think about 
how what you're eating, may become a 

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piece of you. 
The quality of your food, will be 

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reflected in your body, and the quality 
of your fuel, will impact how well your 

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body functions. 
As this course continues, you'll learn 

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just how differently your body may grow, 
develop, or function, depending on what 

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you eat.