The best thing you can do for low cost is 1) eat better food and 2) move more

"More data" is quite literally irrelevant.

People don't do anything with the data they already have, to your point.

Stand on a scale at the same time of day, every day. Track your intake. Track your output. See your PCP for your free AWV-equivalent, and keep an eye on your metrics.

But no, we need GB of scanner outputs because some medically-illiterate (but still the smartest-guy-in-the-room) techbros want them for... reasons.