I like both tea and coffee, but because of the cortisol connection, I usually cut back on both while training. (coffee and caffeine are generally thought to increase cortisol, which is an anti-anabolic hormone and tends to block muscle growth and regeneration) I also exercise in the morning, which is not the best combination with caffeine induced cortisol release.
However, recently I came across a study which suggests that drinking tea lowers cortisol. Actually the study indicates tea helps lower cortisol when elevated due to stress, but that is close enough to get my interest up.
I am wondering if anyone has other references or opinions, or results of any studies comparing tea and coffee with regard to cortisol.
Thread: Tea, coffee, and cortisol
05-27-2007, 08:55 AM #1
Tea, coffee, and cortisol
05-27-2007, 09:23 AM #2
05-27-2007, 09:25 AM #3
05-27-2007, 09:47 AM #4
05-27-2007, 09:51 AM #5
05-27-2007, 10:18 AM #6
Hmmm, I guess I should read more. I didn't know coffee was a cortisol stimulant. I drink a lot of it. Maybe that's why I am having so much trouble losing the little love handles. Perhaps a switch to decaf or hot tea may be in order for a while as a test.
I need to do some research.So...I say to a friend that I can't eat what she eats because "I eat funny". So she says "what does funny taste like?". So I say "Like rubber chicken".
05-27-2007, 10:25 AM #7
05-27-2007, 11:00 AM #8
05-27-2007, 11:06 AM #9So...I say to a friend that I can't eat what she eats because "I eat funny". So she says "what does funny taste like?". So I say "Like rubber chicken".
05-27-2007, 11:24 AM #10
Tea has less caffeine (as served) than coffee. So it stands to reason the cortisol impact will be less. If l-theanine really minimizes cortisol production or impact (haven't studied it, and on a casual glance I didn't see the mechanism), it could simply be the ratio of cortisol release/minimization for a particular individual.CSCS, ACSM cPT.
05-27-2007, 11:26 AM #11
05-27-2007, 11:36 AM #12DaimozzGuest
ima switch to black tea.....and try it...tho i cant say i am a fan of its weak taste but maybe with some stevia it might worth a try.....i enjoy coffee because of the dark rich taste .....i there fore enjoy it black...caffeine is also a great way to speed up ur metabolism to loose weight....and give ur a short burst of energy.....
05-27-2007, 11:42 AM #13
05-27-2007, 11:58 AM #14
how much effect can drinking a cup of coffee really have? i'm skeptical it makes any visible difference.
plus as mentioned it speeds up metabolism. personally i LOVE coffee, and it plays a key role in my workouts.
I'd love to see some sort of realistic calculation of how much coffee induced cortisol retards muscle growth. I read somewhere in these forums that chronic coffee drinkers develop a tolerance and cortisol is much less if you drink coffee daily as opposed to a one time spike in consumption. Maybe i can find that post somewhere.
I think you all are throwing the baby out with the bathwater on this one. JMHO
05-27-2007, 12:12 PM #15
05-27-2007, 12:30 PM #16
I was mainly interested in whether tea was better from the standpoint of muscle development, and if there was any basis for those study results. I think Carl provided at least a possible one. (Thanks, Carl)
05-27-2007, 02:34 PM #17
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What timing...I just heard about the cortisol/coffee connection last week and started to think about my diet. I just gave up coffee this week. I love it and drink 8-10 cups per day. I'm trying green tea. I'm also going to try to make my main meals smaller and snack in between meals in an effort to smooth out the glucose spikes during the day.47yr male, 5'11", 235lbs, BF who knows? (Oct 05)
48yr male, 5'11", 200lbs, 15.2% BF (Nov 06)
48yr male, 5'11", 200lbs, 15.2% BF (May 07)
49yr male, 5'11", 200lbs, 14.5% BF (Aug 07)
49yr male, 5'11", 200lbs, 13.5% BF (Jan 08)
50yr male, 5'11", 200lbs, 13.5% BF (Jul 08)
....and the height chart says I'm fat...ugh!
Oh well, I gotta one pack ab.
05-27-2007, 02:54 PM #18
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I think there's possibly another angle to this research. Please excuse my lack of skill in expressing scientific stuff but .......
Cortisol is a stress hormone. If someone is stressed, and in that "all I want is a nice cup of tea" frame of mind, then surely it stands to reason that when they've had their nice cup of tea they will feel better and their stress/cortisol level will drop?
What I'm trying to say is, maybe there is a power-of-the-mind thing going on. I wonder, if they repeated this test on people who, say, drink Diet Pepsi every day as part of their 'unwinding from stress' routine, they would suddenly 'prove' that Diet Pepsi reduces cortisol levels?
I find caffeine interesting in that it has so many uses. You can use it to give you a boost (sure, there may be a price to pay). You can use it to purposely supress (sp?) your appetite. Or you can do what the majority of folks do - drink it because you like it and the world won't come to and end if you have 2 or 3 cups. (Unless of course you have a severe reaction to it.)Brian! Who are all those people outside?
I don't know mother, they just .... popped by.
Popped by?! Swarmed by more like!