3 ms·
25 cups of coffee in a day sure seems like an unhealthy amount of caffeine. it seems the only factor they were checking for (?) was arterial stiffness? if you'
by kup0 7y ago
25 cups of coffee in a day sure seems like an unhealthy amount of caffeine.
it seems the only factor they were checking for (?) was arterial stiffness? if you're arteries aren't stiff but you're hyped and anxious out of this world and have a very elevated heart rate... not sure the stiffness is what matters anymore
1 cup typical drip coffee = ~70-120mg caffeine
25 cups = ~1750-3000mg caffeine
Examine (https://examine.com/nutrition/caffeine-consumption/ https://examine.com/nutrition/caffeine-consumption/) recommends up to 400mg/day as safe for healthy adults as in "most healthy people won't experience side effects at this level". It seems like 1000mg is the "beginning" of toxicity for a healthy person. Of course, half-life and time between consumption of different sources makes a difference too.
But 1500, 2000+ in a day? Phew, maybe I'm overly cautious but that just seems unwise for anyone
- syn0byte 7y agoBritish study. We can infer instant coffee was the main preparation recorded in the study, which has a lower caffeine content than fresh brewed. ~70-120mg look like drip brew numbers. Instant tends to run from 30-50mg. 25 cups of instant == ~750-1250mg
- kup0 7y agoGood point, hadn't considered that, which does make a significant difference.
- NikkiA 7y agoBear in mind this study is only considering effect on the heart, caffeine's primary effect will be on your brain. (Plus since the '25 cups' only comes from the fact that that is the limit of who they tested, the result is essentially 'we haven't found a level of coffee use that is harmful to the heart, yet'.