this post was submitted on 25 Feb 2024
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[–] [email protected] -4 points 9 months ago (1 children)

The caffeine thing is totally wrong. A healthy adult can safely consume up to 400mg of caffeine a day.

[–] [email protected] 7 points 9 months ago* (last edited 9 months ago) (2 children)

I think the per kg is important there. 192mg/kg of body weight is the lethal dose. So for example a 100kg person would need 19,200mg of caffeine to be a lethal dose. To edit: that's not to say that the lethal dose in this picture is wholly accurate. Caffeine has been known to cause cardiac arrest even in lower doses.

[–] [email protected] 2 points 9 months ago

Good point, I hadn’t considered it was based on body weight, and rather thought it was just median population

[–] [email protected] 2 points 9 months ago

LD50 is specifically a dose that kills 50% of the subjects.

Lower doses can kill, just less than 50% of people.