| ▲ | fedeb95 2 days ago |
| thirty-one participants were moderate coffee-drinkers (CD, i.e., people that usually consume between 3 to 5 cups of coffee per day). 3-5 is moderate? To me, 3 is already high. Also, sample size is pretty low and they're all Irish. |
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| ▲ | p4bl0 2 days ago | parent | next [-] |
| I agree. I'm deep into specialty coffee and I love making and drinking coffee a lot, but three cups is already higher than what I drink on a normal day. Also, most of the time when I go above this threshold, I drink decaf. |
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| ▲ | benhurmarcel 2 days ago | parent [-] | | I wonder how many grams of coffee beans they consider are in 1 cup though. | | |
| ▲ | p4bl0 2 days ago | parent [-] | | Yes, that's a missing but crucial information indeed. To be more precise about my previous message, when I say a cup I mean between 15g and 18g of beans. |
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| ▲ | kristofferR 2 days ago | parent | prev | next [-] |
| This study is Irish, so I think they likely use 170ml cups? That means a normal mug of ~500ml is 3 cups. Perhaps they even use US coffee cup size, which is 118ml? Honestly, using an unit of measurement that varies from 118ml to 250ml in a scientific paper brings the whole paper into question. |
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| ▲ | skrebbel 2 days ago | parent | next [-] | | > a normal mug of ~500ml woa where is half a liter of coffee a "normal" portion? | | |
| ▲ | tomjakubowski 2 days ago | parent [-] | | 500mL is a pretty typical size for a travel mug/tumblr. I'd consider that two or three servings though. | | |
| ▲ | sph a day ago | parent [-] | | 500mL of Americano (diluted coffee) is not 500mL of espresso. I challenge you to drink half a litre of espresso in one sitting. |
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| ▲ | hootz 2 days ago | parent | prev | next [-] | | Okay, you'll definitely have to explain the NORMAL mug of HALF A LITER! | | | |
| ▲ | fc417fc802 2 days ago | parent | prev | next [-] | | The reactions to your comment got me curious enough to check. The mug I use for coffee and tea holds almost exactly 400 mL when comfortably full and I used to drink 2 of those per day (across 12 hours or so). Based on that, personally I'd consider ~800 mL of black coffee to be on the high end of moderate consumption. | | |
| ▲ | kristofferR 2 days ago | parent [-] | | Yeah, people think 400-500ml is a lot for some reason, but it’s not a abnormal coffee mug size at all. The Ember mug I have is around 430ml. |
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| ▲ | finghin 2 days ago | parent | prev | next [-] | | I’m Irish. A NORMAL mug of 500ml??? this is insanity to me | | |
| ▲ | kristofferR 2 days ago | parent [-] | | I didn't say 500ml, I said ~500ml. 500ml is quite large, but 400+ ain’t really that abnormal. |
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| ▲ | ashirviskas 2 days ago | parent | prev [-] | | Does it matter what size the cup is? Usually you get the same amount of coffee water + additional water/milk/whatever. | | |
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| ▲ | ziml77 2 days ago | parent | prev | next [-] |
| One early in the morning, one maybe a bit before lunch, and one in the afternoon. Doesn't seem too out there. And you probably approach 5 cups if you're normalizing the size of a cup and seeing that people generally get bigger cups than that (I'd imagine one large cup in the morning and another in the afternoon would easily put you at 5 for the purposes of the study) |
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| ▲ | midtake 2 days ago | parent | prev | next [-] |
| Are the Irish unique when it comes to metabolizing coffee? |
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| ▲ | IAmBroom 2 days ago | parent [-] | | Local groups of people sometimes share genotype characteristics. Better studies use a broad spectrum of people - a less biased sample set. So the answer to your question is: we can't know, from this study. |
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| ▲ | 2 days ago | parent | prev | next [-] |
| [deleted] |
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| ▲ | jmhammond 2 days ago | parent | prev | next [-] |
| I drink “two cups a day.” But it’s like 24-30 ounces. |
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| ▲ | alexey-salmin 2 days ago | parent | prev | next [-] |
| I do 6-10 espresso cups per day, so 3-5 does sound very moderate. |
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| ▲ | andor 2 days ago | parent | next [-] | | It depends on how much caffeine is in your cup. Rather than measuring the size of a cup, I would go by the amount of coffee, as in the weight of the beans, used to brew it. The actual amount of caffeine is not as easy to measure, and even for the same kind of beans, there is natural variation. For a traditional Italian espresso, about 7g of coffee beans are extracted. For a third-wave double espresso, it's usually 18g or more. In my opinion, 10x7g is a lot. 2x12g is more than enough for me. | | |
| ▲ | frm88 a day ago | parent | next [-] | | Rather than measuring the size of a cup, I would go by the amount of coffee, as in the weight of the beans, used to brew it. I feel this is more precise than the ml cup measuremnts, but if you wanted to be really precise, you'd have to specify the type of beans used (the caffeine content varies widely) and even the brewing method https://oldchicagocoffee.com/coffee-bean-caffeine-content-by.... And - there is an influence - even in the region the beans are grown. In the link I provided they even go so far as to differentiate as to genetics of the beans. | |
| ▲ | askvictor 2 days ago | parent | prev | next [-] | | caffeine extraction is largely a function of time in contact with water. Espresso is quite quick brew, so has less caffeine than other brewing methods (yes, there are plenty of other factors) | |
| ▲ | Edd314159 2 days ago | parent | prev [-] | | There is no realistic scenario where, no matter your extractions or bean selections, 6-10 shots of espresso a day is not an enormous amount of caffeine | | |
| ▲ | criddell 2 days ago | parent [-] | | A grande americano at Starbucks is a 16 oz drink with three shots of espresso. Have one in the morning and one in the afternoon and you are at six shots of espresso. That doesn't seem all that enormous to me. | | |
| ▲ | rpdillon 2 days ago | parent [-] | | 75mg per shot = 450mg caffeine That's a bit over the recommended limit of 400mg a day the Mayo Clinic, FDA, etc. recommend. Not sure it it qualifies as 'enormous' or not. | | |
| ▲ | wang_li 2 days ago | parent [-] | | The amount of caffeine that humans require to live is 0 mg. So ... | | |
| ▲ | IAmBroom 2 days ago | parent [-] | | Irrelevant to the question (How much is 'enormous'?). | | |
| ▲ | wang_li 2 days ago | parent [-] | | It was a slight attempt to highlight that the conversation about a purely subjective thing is missing the point entirely. In the context of scientific discovery trying to qualify the outcome based on an individual's personal interpretation of descriptive words is a fool's errand. Attempting to justify one's personal habits or predilections is squarely in the flat earther camp of scientific belief. |
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| ▲ | MagicMoonlight 2 days ago | parent | prev [-] | | That’s not normal. It’s like saying “I drink 6-10 beers a day so 3-5 is very moderate” |
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| ▲ | TacticalCoder 2 days ago | parent | prev | next [-] |
| > 3-5 is moderate? To me, 3 is already high. I'd say 3 is still moderate and really common. 5 is getting on the high'ish side. Several of us here drink more than that. |
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| ▲ | SecretDreams 2 days ago | parent | prev [-] |
| I drink a small cup in the morning (like 250 ml) and 1-2 Moka pot espressos (like one shot). This typically happens between 7-10am. No more coffee after that most of the time. I like to keep it in the morning routine with breakfast. Green tea and water in my afternoons. Personally, I don't feel any kind of "drug like" effects from this routine. I wonder about the strength of coffee people are drinking and the effects of drinking throughout the day rather than just the morning. Anecdotally, during grad school I drank more per serving and throughout the day, and I certainly felt quite different than my current routine. Like most things, I think people need to find some moderation/balance. |
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| ▲ | pillefitz 2 days ago | parent [-] | | It's less about the strength of coffee than about your metabolism. I used to be unaffected by caffeine, and now it takes a few sips in the morning to mess with my sleep in the evening - sth that started happening in my twenties I believe, possibly liver-related. | | |
| ▲ | SecretDreams 2 days ago | parent [-] | | Interesting, do you have any good links for this? I can have a coffee a bit before bed if I really want. I also used to think I had a "high metabolism", but don't say that anymore since it comes off as kind of bogus. | | |
| ▲ | pillefitz a day ago | parent [-] | | Unfortunately no. It's my inference, given that 23andme didn't find any genetic indicator (CYP1A2) for slow metabolism, which is in line with my experience I got more sensitive over time. So it must be some other mechanism that diminished enzyme production. Some of my liver (were those enzymes are produced) values were elevated over the last few years for no good reason, and I suspect the two could be related. It's a bit annoying, as I'm reacting to trace amounts of caffeine in coffee, tea or chocolate, but I'm more worried about all the other, possibly carcinogenic, environmental toxins my liver won't be able to filter out. |
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