here’s the meta analysis that decided 400mg. they also found studies drawing a link but also many that didn’t. it’s by no means a closed question, and i suspect that even if it started to lean towards danger, it would be way less of a risk than other common products (cured meat)

I just want to emphasize that I don’t think caffeine is evil or nothing

i don’t think it’s good, it personally has a vendetta against me. but i don’t think western governments should be expanding surveillance against kids, especially governments who are on the other hand starving them with cuts to food assistance