glycogen vs sweetener

glycogen

noun
  • A polysaccharide that is the main form of carbohydrate storage in animals; converted to glucose as needed. 

sweetener

noun
  • Something added to food to sweeten its taste, especially an artificial substitute for sugar. 

  • A shill bidder at an auction. 

  • Something given or added to added to a deal to sweeten another's attitude, especially a bribe or kickback. 

How often have the words glycogen and sweetener occurred in a corpus of books? (source: Google Ngram Viewer )