Table 2.

Increase in sample size (%) required to maintain 80% power when using MyFitnessPal for nutrient analysis instead of Nubel to detect a true effect if correlated with an outcome variable.

Nubel sample size	Percentage (%) increase in MyFitnessPal sample size required to maintain a statistical power of 80%
	Energy intake	Carbohydrate	Fat	Protein	Sugar	Fiber	Cholesterol	Sodium
50	11	28	21	33	64	65	347	364
100	10	27	20	32	60	65	277	307
500	10	25	19	28	40	36	68	72