Sources

Sources: 

http://kidshealth.org/kid/nutrition/food/carb.html

http://www.chem4kids.com/files/bio_carbos.html

http://www.healthcalculators.org/index.html

http://www.visionlearning.com/library/module_viewer.php?mid=61

http://www.hsph.harvard.edu/nutritionsource/what-should-you-eat/protein-full-story/index.html

http://www.elitefts.com/images/PICTURES/carbs3.jpg

http://ldenicola.files.wordpress.com/2007/10/proteins.jpg

http://tamshealthycorner.files.wordpress.com/2010/09/unsaturated-fats1.jpg