Could I have had a caffeine overdose.?
Discussion
I don't think you overdosed, or even got close. You might just be sensitive to caffeine.
I have stuidied caffeine extensively as an aid for sporting performance and the minimum dose for an ergogenic effect is about 2mg/kg of bodyweight. So for an 80kg guy, that's 160mg of caffeine (just over three pro plus, 2 red bulls, or about 1 and half cups of coffee (although as someone else mentioned coffee does vary))
My MSc study used 5mg/kg BW... again for an 80kg guy... 400mg ... 8 x pro plus, 5 red bulls, or 4 cups of coffee ish.
The highest dose recommended without negative effect is 9mg/kg BW... 720mg.... 14.5 pro plus, 9 red bulls, 7ish cups of coffee.
So, even if the coffee was twice as strong as "regulation coffee", youu're still only somewhere in the middle if you're 80kg. Adjust accordingly for weight.
I use caffeine for training, and use 300mg pre training, or 400mg if I'm feeling particularly in need - fairly low doses as I'm about 94kg BW.
ETA "cup of coffee" is assuming 2 shots of espresso, at 50mg per shot. This can range to over 200mg though I believe, but can also be less down to around 60mg for a double shot.
I have stuidied caffeine extensively as an aid for sporting performance and the minimum dose for an ergogenic effect is about 2mg/kg of bodyweight. So for an 80kg guy, that's 160mg of caffeine (just over three pro plus, 2 red bulls, or about 1 and half cups of coffee (although as someone else mentioned coffee does vary))
My MSc study used 5mg/kg BW... again for an 80kg guy... 400mg ... 8 x pro plus, 5 red bulls, or 4 cups of coffee ish.
The highest dose recommended without negative effect is 9mg/kg BW... 720mg.... 14.5 pro plus, 9 red bulls, 7ish cups of coffee.
So, even if the coffee was twice as strong as "regulation coffee", youu're still only somewhere in the middle if you're 80kg. Adjust accordingly for weight.
I use caffeine for training, and use 300mg pre training, or 400mg if I'm feeling particularly in need - fairly low doses as I'm about 94kg BW.
ETA "cup of coffee" is assuming 2 shots of espresso, at 50mg per shot. This can range to over 200mg though I believe, but can also be less down to around 60mg for a double shot.
Edited by TheBALDpuma on Monday 23 May 10:02
Short Grain said:
There was a story in the tabloids a few years ago of a young girl who worked at one of the chains of coffee shops and drank 8 - 10 espressos during her shift. Got the shakes and had to be sent to the Doc's who told her she'd o/dosed on caffeine!
http://news.bbc.co.uk/1/hi/england/wear/6944026.stmI once matched my mates drink for drink in the pub.
They were on pints, and I was on full fat Irn Bru as I had recently bought a new Octavia vRS and was driving that night.
After having around 8 cans of FF Bru I was completely sparko!
Wired to the moon, on a huge sugar rush and couldn't sleep at all.
The next day I felt like I had been on the Aftershocks - rough as a badger's!
They were on pints, and I was on full fat Irn Bru as I had recently bought a new Octavia vRS and was driving that night.
After having around 8 cans of FF Bru I was completely sparko!
Wired to the moon, on a huge sugar rush and couldn't sleep at all.
The next day I felt like I had been on the Aftershocks - rough as a badger's!
TheBALDpuma said:
I don't think you overdosed, or even got close. You might just be sensitive to caffeine.
I have stuidied caffeine extensively as an aid for sporting performance and the minimum dose for an ergogenic effect is about 2mg/kg of bodyweight. So for an 80kg guy, that's 160mg of caffeine (just over three pro plus, 2 red bulls, or about 1 and half cups of coffee (although as someone else mentioned coffee does vary))
My MSc study used 5mg/kg BW... again for an 80kg guy... 400mg ... 8 x pro plus, 5 red bulls, or 4 cups of coffee ish.
The highest dose recommended without negative effect is 9mg/kg BW... 720mg.... 14.5 pro plus, 9 red bulls, 7ish cups of coffee.
So, even if the coffee was twice as strong as "regulation coffee", youu're still only somewhere in the middle if you're 80kg. Adjust accordingly for weight.
I use caffeine for training, and use 300mg pre training, or 400mg if I'm feeling particularly in need - fairly low doses as I'm about 94kg BW.
ETA "cup of coffee" is assuming 2 shots of espresso, at 50mg per shot. This can range to over 200mg though I believe, but can also be less down to around 60mg for a double shot.
Interesting stuff.I have stuidied caffeine extensively as an aid for sporting performance and the minimum dose for an ergogenic effect is about 2mg/kg of bodyweight. So for an 80kg guy, that's 160mg of caffeine (just over three pro plus, 2 red bulls, or about 1 and half cups of coffee (although as someone else mentioned coffee does vary))
My MSc study used 5mg/kg BW... again for an 80kg guy... 400mg ... 8 x pro plus, 5 red bulls, or 4 cups of coffee ish.
The highest dose recommended without negative effect is 9mg/kg BW... 720mg.... 14.5 pro plus, 9 red bulls, 7ish cups of coffee.
So, even if the coffee was twice as strong as "regulation coffee", youu're still only somewhere in the middle if you're 80kg. Adjust accordingly for weight.
I use caffeine for training, and use 300mg pre training, or 400mg if I'm feeling particularly in need - fairly low doses as I'm about 94kg BW.
ETA "cup of coffee" is assuming 2 shots of espresso, at 50mg per shot. This can range to over 200mg though I believe, but can also be less down to around 60mg for a double shot.
Edited by TheBALDpuma on Monday 23 May 10:02
Is this essentially what is in "pre-workout"? I've used protein powders in the past (gave up because they taste naff and you just seem to fart and burp all the time without really seeing much other benefit). But always steered clear of all the other potions you see fitness manufacturers pedal to people (pre-workout, creatine, BCAA or whatever). I always think if your body isn't just converting it to piss, its probably rotting your liver or something for only a little gain.
Otispunkmeyer said:
Interesting stuff.
Is this essentially what is in "pre-workout"? I've used protein powders in the past (gave up because they taste naff and you just seem to fart and burp all the time without really seeing much other benefit). But always steered clear of all the other potions you see fitness manufacturers pedal to people (pre-workout, creatine, BCAA or whatever). I always think if your body isn't just converting it to piss, its probably rotting your liver or something for only a little gain.
Yeah it is. Pre workouts are a massive con. You pay something stupid like £1.50 a serving sometimes for this special concoction of additives, and in all of them the main working ingredient is caffeine that can be had for 0.5p a serving. On top of that they never tell you how much caffeine you're actually taking. You get stuff like beta analyine in them, that makes your skin tingle... but not necessarily a lot else. Stick to just caffeine!Is this essentially what is in "pre-workout"? I've used protein powders in the past (gave up because they taste naff and you just seem to fart and burp all the time without really seeing much other benefit). But always steered clear of all the other potions you see fitness manufacturers pedal to people (pre-workout, creatine, BCAA or whatever). I always think if your body isn't just converting it to piss, its probably rotting your liver or something for only a little gain.
Otispunkmeyer said:
Interesting stuff.
Is this essentially what is in "pre-workout"? I've used protein powders in the past (gave up because they taste naff and you just seem to fart and burp all the time without really seeing much other benefit). But always steered clear of all the other potions you see fitness manufacturers pedal to people (pre-workout, creatine, BCAA or whatever). I always think if your body isn't just converting it to piss, its probably rotting your liver or something for only a little gain.
http://www.pponline.co.uk/encyc/what-are-the-benefits-and-dangers-of-ephedrine-555Is this essentially what is in "pre-workout"? I've used protein powders in the past (gave up because they taste naff and you just seem to fart and burp all the time without really seeing much other benefit). But always steered clear of all the other potions you see fitness manufacturers pedal to people (pre-workout, creatine, BCAA or whatever). I always think if your body isn't just converting it to piss, its probably rotting your liver or something for only a little gain.
http://examine.com/blog/science-behind-caffeine/
http://examine.com/supplements/caffeine/
http://examine.com/supplements/caffeine/
Otispunkmeyer said:
Interesting stuff.
Is this essentially what is in "pre-workout"? I've used protein powders in the past (gave up because they taste naff and you just seem to fart and burp all the time without really seeing much other benefit). But always steered clear of all the other potions you see fitness manufacturers pedal to people (pre-workout, creatine, BCAA or whatever). I always think if your body isn't just converting it to piss, its probably rotting your liver or something for only a little gain.
Caffeine is a very common ingredient, along with dextrose (e.g. sugar) and varying proteins. However, depending on what pre workout you had and when (before some ingredients were banned), it could contain anything from prohormones to DMAA.Is this essentially what is in "pre-workout"? I've used protein powders in the past (gave up because they taste naff and you just seem to fart and burp all the time without really seeing much other benefit). But always steered clear of all the other potions you see fitness manufacturers pedal to people (pre-workout, creatine, BCAA or whatever). I always think if your body isn't just converting it to piss, its probably rotting your liver or something for only a little gain.
TheBALDpuma said:
I don't think you overdosed, or even got close. You might just be sensitive to caffeine.
I have stuidied caffeine extensively as an aid for sporting performance and the minimum dose for an ergogenic effect is about 2mg/kg of bodyweight. So for an 80kg guy, that's 160mg of caffeine (just over three pro plus, 2 red bulls, or about 1 and half cups of coffee (although as someone else mentioned coffee does vary))
My MSc study used 5mg/kg BW... again for an 80kg guy... 400mg ... 8 x pro plus, 5 red bulls, or 4 cups of coffee ish.
The highest dose recommended without negative effect is 9mg/kg BW... 720mg.... 14.5 pro plus, 9 red bulls, 7ish cups of coffee.
So, even if the coffee was twice as strong as "regulation coffee", youu're still only somewhere in the middle if you're 80kg. Adjust accordingly for weight.
I use caffeine for training, and use 300mg pre training, or 400mg if I'm feeling particularly in need - fairly low doses as I'm about 94kg BW.
ETA "cup of coffee" is assuming 2 shots of espresso, at 50mg per shot. This can range to over 200mg though I believe, but can also be less down to around 60mg for a double shot.
Love to read it. What do i need to get the maximum performance for running. I am about 61kg and frequently use 2*RedBull at the start of marathon running however for best effect another one at the 18m mark carries me to the line.I have stuidied caffeine extensively as an aid for sporting performance and the minimum dose for an ergogenic effect is about 2mg/kg of bodyweight. So for an 80kg guy, that's 160mg of caffeine (just over three pro plus, 2 red bulls, or about 1 and half cups of coffee (although as someone else mentioned coffee does vary))
My MSc study used 5mg/kg BW... again for an 80kg guy... 400mg ... 8 x pro plus, 5 red bulls, or 4 cups of coffee ish.
The highest dose recommended without negative effect is 9mg/kg BW... 720mg.... 14.5 pro plus, 9 red bulls, 7ish cups of coffee.
So, even if the coffee was twice as strong as "regulation coffee", youu're still only somewhere in the middle if you're 80kg. Adjust accordingly for weight.
I use caffeine for training, and use 300mg pre training, or 400mg if I'm feeling particularly in need - fairly low doses as I'm about 94kg BW.
ETA "cup of coffee" is assuming 2 shots of espresso, at 50mg per shot. This can range to over 200mg though I believe, but can also be less down to around 60mg for a double shot.
Edited by TheBALDpuma on Monday 23 May 10:02
Monty Python said:
Bobby_Mac said:
Doesn't tea generally have more caffeine in it ?
http://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/caffeine/art-20049372AndStilliRise said:
Love to read it. What do i need to get the maximum performance for running. I am about 61kg and frequently use 2*RedBull at the start of marathon running however for best effect another one at the 18m mark carries me to the line.
My study looked at the effects on power, but the effects on cardiovascular performance are very well studied, it probably has a more prominant effect.As I mentioned, your weight is important. 2 red pulls is probably helping, but only just. Double the dose for a bigger effect, but I wouldn't have 4 red bulls as you'll need to stop for a piss!
Caffeine peaks in your blood after an hour of consumption, and has a 4 hour half life - worth bearing in mind for timings.
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