# How much caffeine have you had today? **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Created:** [September 23, 2008, 4:03am UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795 "2008-09-23T04:03:28Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![overlyverbose](https://avatars.discourse-cdn.com/v4/letter/o/9dc877/32.png) [@overlyverbose](https://boards.straightdope.com/u/overlyverbose)\ **Post date:** [September 23, 2008, 6:29pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/21 "2008-09-23T18:29:11Z")
215 milligrams - two cups of brewed coffee. ---
**Author:** ![AngelicGemma](https://avatars.discourse-cdn.com/v4/letter/a/439d5e/32.png) [@AngelicGemma](https://boards.straightdope.com/u/AngelicGemma)\ **Post date:** [September 23, 2008, 7:20pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/22 "2008-09-23T19:20:53Z")
107.5mg. Just one cup of coffee. I’ve had lots of suger though. There was a sweets stall at work today. Mmmm cola bottles. ---
**Author:** ![I\_Have\_Hippos\_In\_My\_Garden](https://avatars.discourse-cdn.com/v4/letter/i/4491bb/32.png) [@I\_Have\_Hippos\_In\_My\_Garden](https://boards.straightdope.com/u/I_Have_Hippos_In_My_Garden)\ **Post date:** [September 23, 2008, 7:23pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/23 "2008-09-23T19:23:43Z")
I had way more than my normal caffine intake today because I didn’t eat very much (not enough), and so over the course of the day had a litre of diet coke to keep me going (its 8pm now here). So thats 80mg. What is interesting though is that I had 500ml of diet coke and 500ml of coke zero. The chart says that coke zero has less caffine in it than diet coke, why would that be?! Am I right in thinking the recommended caffine intake limit is 300mg? ---
**Author:** ![Asimovian](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/asimovian/32/172_2.png) [@Asimovian](https://boards.straightdope.com/u/Asimovian)\ **Post date:** [September 23, 2008, 7:24pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/24 "2008-09-23T19:24:01Z")
Used to be I’d consume two to three caffeinated sodas per day. Now that I know I’m diabetic, I’m pretty much off of soda entirely. It has probably been a couple of weeks since I had caffeine. ---
**Author:** ![Johnny\_L.A](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/johnny_l.a/32/1084_2.png) [@Johnny\_L.A](https://boards.straightdope.com/u/Johnny_L.A)\ **Post date:** [September 23, 2008, 7:34pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/25 "2008-09-23T19:34:19Z")
This morning was nearly a disaster. I went to the gas station where I get a free cuppa joe when I get gas. I guess they’d had a busy morning. The Extra Caffeine urn was empty! The Regular was empty too. :eek: Fortunately they started the Extra Caffiene (almost started the Regular, but I put a stop to that real quick) and I got 20 oz. of the strong stuff you get before the grounds get used up. Had a bad coffee at work, and now I have a Monster. Drive-to-the-office days are low-caffeine days. ---
**Author:** ![Miss\_Woodhouse](https://avatars.discourse-cdn.com/v4/letter/m/838e76/32.png) [@Miss\_Woodhouse](https://boards.straightdope.com/u/Miss_Woodhouse)\ **Post date:** [September 23, 2008, 7:41pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/26 "2008-09-23T19:41:41Z")
6mg. I just finished a Kit Kat. I consume less than 10 mg a day on average. All my caffine comes from chocolate. I hate cola and coffee and therefore can’t handle much more than that 10mg in my system. I feel really weird if I ingest much more than 100 mg. ---
**Author:** ![vetbridge](https://avatars.discourse-cdn.com/v4/letter/v/b5e925/32.png) [@vetbridge](https://boards.straightdope.com/u/vetbridge)\ **Post date:** [September 23, 2008, 7:43pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/27 "2008-09-23T19:43:29Z")
367 mg. I had a shot in the dark (espresso poured into a coffee), then one more coffee. ---
**Author:** ![I\_Have\_Hippos\_In\_My\_Garden](https://avatars.discourse-cdn.com/v4/letter/i/4491bb/32.png) [@I\_Have\_Hippos\_In\_My\_Garden](https://boards.straightdope.com/u/I_Have_Hippos_In_My_Garden)\ **Post date:** [September 23, 2008, 7:44pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/28 "2008-09-23T19:44:36Z")
> [@](#): > > I feel really weird if I ingest much more than 100 mg. Yes that’s the same as me. I found out today 80mg is my limit, I came out in sweats and was so shaky I couldn’t stand up. I know now not to have more than 500mg of diet coke. I just drink water mainly though so its nice to drink something different occasionally. ---
**Author:** ![ShelliBean](https://avatars.discourse-cdn.com/v4/letter/s/f9ae1b/32.png) [@ShelliBean](https://boards.straightdope.com/u/ShelliBean)\ **Post date:** [September 23, 2008, 7:48pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/29 "2008-09-23T19:48:43Z")
OK I was doing it wrong. I hit the “that’s enough” when I put in what I drink on a regular basis. I’m just gonna go drink about a gallon of water now. ---
**Author:** ![I\_Have\_Hippos\_In\_My\_Garden](https://avatars.discourse-cdn.com/v4/letter/i/4491bb/32.png) [@I\_Have\_Hippos\_In\_My\_Garden](https://boards.straightdope.com/u/I_Have_Hippos_In_My_Garden)\ **Post date:** [September 23, 2008, 7:51pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/30 "2008-09-23T19:51:07Z")
> [@](#): > > I know now not to have more than 500mg of diet coke Opps I meant to say 500ml not 500mg and my edit had expired. ---
**Author:** ![torie](https://avatars.discourse-cdn.com/v4/letter/t/77aa72/32.png) [@torie](https://boards.straightdope.com/u/torie)\ **Post date:** [September 23, 2008, 8:00pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/31 "2008-09-23T20:00:16Z")
50 mg. I am estimating that my home brewed Lipton tea I just finished was in a roughly 20 oz glass. That will probably be it for the day as far as caffeine goes. You guys are crazy… ---
**Author:** ![Drain\_Bead](https://avatars.discourse-cdn.com/v4/letter/d/e47774/32.png) [@Drain\_Bead](https://boards.straightdope.com/u/Drain_Bead)\ **Post date:** [September 23, 2008, 8:01pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/32 "2008-09-23T20:01:39Z")
Not doing the math, but I had a 20oz Coke Zero, which I think gets me around 45mg. I’m pregnant, so I can’t have much. ---
**Author:** ![susan\_foster](https://avatars.discourse-cdn.com/v4/letter/s/d9b06d/32.png) [@susan\_foster](https://boards.straightdope.com/u/susan_foster)\ **Post date:** [September 23, 2008, 8:04pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/33 "2008-09-23T20:04:25Z")
48 ounces of Diet Mt. Dew. About to get a 20 ounce bottle of Coke Zero. Susan (And no - I’m not vibrating from that intake. That’s normal for me) ---
**Author:** ![Autolycus](https://avatars.discourse-cdn.com/v4/letter/a/22d042/32.png) [@Autolycus](https://boards.straightdope.com/u/Autolycus)\ **Post date:** [September 23, 2008, 8:04pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/34 "2008-09-23T20:04:47Z")
None. I almost never have caffeine. The only time is the occasional Coke or chocolate. I never had caffeine much as a kid, so when I have it now I get very wired and then crash. ---
**Author:** ![Claptree](https://avatars.discourse-cdn.com/v4/letter/c/58f4c7/32.png) [@Claptree](https://boards.straightdope.com/u/Claptree)\ **Post date:** [September 23, 2008, 8:26pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/35 "2008-09-23T20:26:41Z")
About 500mg so far. I might be having another cup later. A bit more than usual for a day off, but way less than a full day at work. Average for a work day is about double, I recon. ---
**Author:** ![WhyNot](https://avatars.discourse-cdn.com/v4/letter/w/c77e96/32.png) [@WhyNot](https://boards.straightdope.com/u/WhyNot)\ **Post date:** [September 23, 2008, 9:13pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/36 "2008-09-23T21:13:49Z")
160mg for me, assuming lo-carb Monster has the same caffeine content as a regular Monster. I buy them by the case, and have one a day on school days, and often one when I’m studying (state-dependent learning, you know; if you take the test slightly caffeinated, then study caffeinated). And, like **Azhure** , I constantly have people telling me how “that stuff” is going to kill me, while they’re sucking down their 4th quart-sized Caffè Americano for the day. :rolleyes: ---
**Author:** ![Fearless\_Leader](https://avatars.discourse-cdn.com/v4/letter/f/9fc348/32.png) [@Fearless\_Leader](https://boards.straightdope.com/u/Fearless_Leader)\ **Post date:** [September 23, 2008, 9:25pm UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/37 "2008-09-23T21:25:28Z")
Looks like 471 for me today-three 6 ounce cups this morning and one 8 ounce in the afternoon. ---
**Author:** ![TroubleAgain](https://avatars.discourse-cdn.com/v4/letter/t/e480ec/32.png) [@TroubleAgain](https://boards.straightdope.com/u/TroubleAgain)\ **Post date:** [September 24, 2008, 12:52am UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/38 "2008-09-24T00:52:52Z")
One biiiiig cup of coffee, and a dr. pepper. ---
**Author:** ![lobotomyboy63](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/lobotomyboy63/32/2900_2.png) [@lobotomyboy63](https://boards.straightdope.com/u/lobotomyboy63)\ **Post date:** [September 24, 2008, 1:10am UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/39 "2008-09-24T01:10:14Z")
Total caffeine junkie here. Poison of choice: diet Coke. I drink those ginormous Double Gulps from 7-11, so I don’t know if that’s the same per ml as a can of it. I’ll guesstimate 800mg. ---
**Author:** ![Jeff](https://avatars.discourse-cdn.com/v4/letter/j/e19b73/32.png) [@Jeff](https://boards.straightdope.com/u/Jeff)\ **Post date:** [September 24, 2008, 1:27am UTC](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795/40 "2008-09-24T01:27:54Z")
I’m quite surprised to see that an americano from starbucks has only 2/3 of the caffiene of one of their coffees. I’d always assumed they were even. 225mg for me today. [Previous page](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795.md?page=1) [Next page](https://boards.straightdope.com/t/how-much-caffeine-have-you-had-today/464795.md?page=3)