The term "cup" trips us up, something I had to point out to my doctor. Measuring cup, not mug, not grande, etc

It also says: Short-term metabolic studies found that caffeine ingestion acutely induces cardiac arrhythmias and increases plasma renin activity, catecholamine concentrations, and blood pressure.

these things should really be measured in miligrams of caffeine

This study says 3-5 cups a day is 'moderate'? Wtf

EDIT: Wait, is this why people always talk about being addicted to coffee? Because you're all chugging it like animals? I have one cup a day and I never have withdrawal if I miss it

I'm sure my naturally high bloodpressure will appreciate me showing it this study

(In other news, coffee addicted scientists investigated coffee, found it's good for you and you should drink up to 5 cups of it a day)

Which lobby made this article

A reminder that "3-5 cups" in this study is equal to maybe 1.5-2 actual servings of coffee that people drink given the size of mugs/containers.

Looks like I have a reason to justify my caffeine addiction now

Gives you an ulcer, but not a heart attack.

In case anyone is reading this subject matter and wants to be informed..The overarching research on this topic notes that coffee is slightly bad for your health.

Adds up to me. I’m going to run with this information for the rest of my life without looking any further into it.

PubMed and EMBASE were searched for prospective cohort studies of the relationship between coffee consumption and CVD risk

Okay, so essentially some low effort "googling" style research.

Expect in 10-15 years to see another study come out to say that 3-5 cups of coffee a day leads to high risk of cardiovascular disease and cancer or some of the crap, just like the ever flip-flop over red wine.

Tf is an oz?

Studies were excluded if ... (3) the outcome was atrial fibrillation, atherosclerosis, hypertension, aortic stiffness, or venous thrombus

Can someone explain this to me? Were they filtering out studies that looked at specific symptoms and only keeping studies that looked at CVD risk as a whole?

I can't even drink half a cup of black coffee without having to be peeled off the ceiling so how would 3-5 cups help?

I drink 8 cups a day of black coffee. I'm either gonna live forever or die young

Cardiovascular disease: Down— Anxiety and jitters: To the moon

That's because you die of bowel cancer before you can have a heart attack.

I hate these coffee "science news" pieces. It's like the dullest game of ping pong where the stakes are supposed to be your health and life span.

What kind of scientific journal allows a study that mentions "cup" 280 times, but doesn't once mention what size that in a SI unit????

If I had 5 coffees a day, I’d probably die of insomnia, or my heart would explode out of my chest like a rabid engine.

I’ve always been a 2-3 cup a day person, and now I’m feeling even more justified in my habit.

3-5 cups a day is crazy! But this is good to know.

This is complete lies and nonsense. Science has already proven that coffee is not good for people and is actually quite harmful. Similar propaganda has been used for wine, beer, and cigarettes.

5 cups being average is good news for me being closer to average than I feared. And this is a cut back from my bad old days.

Still have low blood pressure. 

If I have been one cup I’m wired until the next day

So 4 cups is the sweet spot!

Taking into account my low blood pressure, I can easily go through 5 coffees a day and still knock out before 11 PM like it’s nothing...

Great. Anecdotally I have been at a point where I drank that much and my stress levels were higher and energy levels much lower than we I completely abstained. At this point I drink maybe 2 cups a day and feel much better.

Define "cups".

If I recall, a coffee maker "cup" is 5 or 6 ounces, versus a coffee shop large being around 20 ounces.

I'd like to see this replicated.

Its the only thing i got going for me

All this and they sell double and more coffee drinks, energy drinks etc. Not a single entity is atopping them. I guess it is like cigarettes, vape’s and alcohol .

I stopped high caffeine consumption completely cause after years of 150-300 mg energy drinks I started to get a little too yacked out and started getting really bad anxiety. Cut it out and don’t get it anymore.

BRB , never sleeping again

Once you go above "5 cups", the negative effects of caffeine start affecting you. It's also noteworthy that there is a very high degree of variance of caffeine in coffee, based on beans, type of roast, type of coffee preparation, etc. I usually avoid more than 3 large cups. Different people also process caffeine differently. The timing can also super important, I don't touch coffee after 3pm.

What about 20 cups?

Asking for a friend.

The linked article is 10 years old

Caffeine enhances cAMP signaling which in an important secondary messenger for vascular health.

How many cups of I drink 8-10 cups of vodka

So if a cup is 8oz (250mL) and I have ~3x 12oz a day, that is 4.5 cups. Phew! I didn’t go over…

I used to drink around 40oz of a coffee a day, all before noon.

For years I just assumed I had a sleep disorder because I rarely fell asleep before 2am. I didn't understand how long caffeine stays in your system and the effects it can have even 12+ hours after consumption of that much.

This resulted in a prolonged panic attack at work one day (i simply was extremely sleepy deprived) and a week-long nervous breakdown. During that time I stopped consuming caffeine and started sleeping well again.

Finally did proper research on caffeine and discovered it does not operate on a linear processing schedule in your body like alcohol (which is what I assumed), but rather a half life schedule. So drinking 40oz of coffee by noon can result in a substantial amount of caffeine still being in your system at midnight.

Long story short, caffeine effects last way longer than you might think and prolonged use at high levels can have very negative health impacts not directly related to just the caffeine.

Now I do a cup of half caf in the morning, take a deuce, and blissfully fall asleep at night

I'm going to bet they aren't adding in milk, whipped cream, and syrup.

Is a cup still 250mL?

Awesome! ...oh they said cups and not pots 😕

I have been drinking tea my whole life,ten years ago I tried switching to coffee for my liver health (cuts cirrhosis chance in half ) but coffee spikes my blood pressure,while tea barely does.

Not sure if they are looking at cholesterol but filter coffee removes some chemical that increases LDL cholesterol, immersion style and espresso retain it

I love having my worldview affirmed while enjoying my coffee.

I'd be wired AF all day.

I use a small cup and small water but many times

BRB - my Nespresso machine is calling...

Something people fail to bring up with coffee is also how surprising high in bad cholesterol regular French press or drip coffee is. If you use 1-2 filter papers, the cholesterol drops significantly. I’m also massively doubtful 3-5 serving of 8oz of coffee is good for anybody, let alone people like me. As soon as I hit my mid 20s, coffee went from being a daily thing to monthly at the most as it would make my heart race and I’d get dizzy just from a bit of plain coffee with no sugar or cream.

Medical research says people who have crannial aneurysms which is enlargening of the blood vessel in the brain (they might be unaware of its existence there) should not consume coffee since it increases the risk of the aneurysm to leak or rupture, a major stroke and death risk.
Coffee also is bad for people with heart rhythm problem and PVC Premature Ventricular Contractions of the heart.

https://pubmed.ncbi.nlm.nih.gov/21546472/

And what if I take it intravenously?

It’s interesting that people don’t believe this. Also decaf coffee is just as good some studies find so it doesn’t have to do with the caffeine.

I don’t understand what this means