Biomolecules

Wikipedia Isomer

https://en.wikipedia.org/wiki/Isomer 

 

Vitamins

Linus Pauling Institute Micronutrient Information Center

http://lpi.oregonstate.edu/mic/vitamins 

Food and Nutrition Information Center

http://fnic.nal.usda.gov/food-composition/vitamins-and-minerals 

WebMD

http://www.webmd.com/vitamins-supplements/ 

Harvard Health Publications

http://www.health.harvard.edu/staying-healthy/listing_of_vitamins 

ConsumerLab.com

https://www.consumerlab.com/RDAs/ 

Canadian Food Inspection Agency (CFIA)

http://www.inspection.gc.ca/eng/1297964599443/1297965645317 

Wikipedia

https://en.wikipedia.org/wiki/Vitamin 
https://en.wikipedia.org/wiki/Dietary_Reference_Intake 

Wikiversity

https://en.wikiversity.org/wiki/Optimum_Daily_Intake 

Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (1998)

http://www.nap.edu/read/6015/chapter/1 

U.S. National Institutes of Health

https://ods.od.nih.gov/factsheets/list-all/

Nutrition Data

SELFNutritionData

http://nutritiondata.self.com/

Nutrition Value

http://www.nutritionvalue.org/