carbohydrate loading vs carbo loading

carbohydrate loading and carbo loading both are nouns.

Word	Noun	Adjective	Verb	Adverb
carbohydrate loading	Yes	No	No	No
carbo loading	Yes	No	No	No

As nouns, carbohydrate loading and carbo loading are synonyms defined as:

carbohydrate loading and carbo loading: a diet of foods high in starch that increases carbohydrate reserves in muscles

carbohydrate loading (noun)	carbo loading (noun)
a diet of foods high in starch that increases carbohydrate reserves in muscles	a diet of foods high in starch that increases carbohydrate reserves in muscles