WP	Whey protein
CM	Creatine monohydrate
RET	Resistance exercise training
NS	Nutritional supplement
NSU	Nutritional supplement user
NNSU	Non-nutritional supplement user
LcS	L-carnitine supplement
LcSU	L-carnitine supplement user
PS	Whey protein supplement
PSU	Whey protein supplement user
CS	Carnitine supplement
CSU	Creatine supplement user
PCLcS	Combination of whey protein, creatine, and L-carnitine supplements
PCLcSU	Combination of whey protein, creatine, and L-carnitine supplements user
NW	Normal weight
UW	Underweight
OW	Overweight