Table 1:

Descriptive statistics from our dataset of MyFitnessPal users.

Characteristics	Value
# of users studied	1,413,431
Observation period	August 2014 - April 2017
Weights logged	44,568,749
Weight goals set	2,803,073
Food items logged	8,785,560,832
Free-text goal justifications	56,014
Mean age	38.69
% users female	71.9
% users underweight	0.34
% users normal weight	29.39
% users overweight	36.28
% users obese	33.99