I don&#x27;t think scaling this &quot;experiment&quot; is a problem anymore.
There are millions of people that use calorie counting apps and websites. Among them there must be plenty of people with consistent data.<p>My personal anecdata: I have 5+ years of personal food intake and exercise data in MFP app. It is not hard at all. Data entry takes about 10 minutes a day. And now I know what a cup of salmon looks like.<p>I&#x27;ve also ran some unscientific analysis that confirmed my biases. Major one: when I consume less calories then I burn my weight goes down, and vice versa.  ;-)