Home   |   Contact   |   Help

Get Our Newsletter
Sign up for our free newsletter to get training tips and stay up to date on Catalyst Athletics, and get a FREE issue of the Performance Menu journal.

Go Back   Catalyst Athletics Forums > Nutrition > General Nutrition

Reply
 
Thread Tools Display Modes
Old 11-09-2009, 06:44 AM   #1
daniel doiron
New Member
 
Join Date: Apr 2007
Posts: 31
Default Effects of Caffeine during IF

I have seen comments about caffeine increasing cortisol 'too much' during IF, but does it really have that much of a negative effect? What about 1 mug for the day?

I feel more sensitive that is sure, but what would you see as the negative effects (hormonal or other)?

Thanks.
daniel doiron is offline   Reply With Quote
Old 11-09-2009, 07:08 AM   #2
Steven Low
Super Moderator
 
Join Date: Mar 2007
Posts: 3,091
Default

1 cup of coffee isn't going to kill you...

Although if you're drinking 4-5+ then you might want to admit you have a problem and drink more water.
__________________
Posts NOT intended as professional medical, training or nutrition advice.
Site // Bodyweight Strength Training Article // Overcoming Gravity Bodyweight Book
Steven Low is offline   Reply With Quote
Old 11-09-2009, 10:48 AM   #3
Mike ODonnell
Senior Member
 
Mike ODonnell's Avatar
 
Join Date: Nov 2006
Posts: 3,596
Default

IF should help decrease your "need" for caffeine....or lessen the amount you have....as tea is all the jolt I really need anymore (otherwise I go into SNS overload).

As far as cortisol and caffeine.....here's an interesting study about how your morning response actually drops off if you are are consistent....yet PM response is much more prominent. So one cup in the AM....isn't much to worry about....and avoid the later spikes.

Quote:
Objective
Caffeine increases cortisol secretion in people at rest or undergoing mental stress. It is not known whether tolerance develops in this response with daily intake of caffeine in the diet. We therefore tested the cortisol response to caffeine challenge after controlled levels of caffeine intake.

Methods
Men (N = 48) and women (N = 48) completed a double-blind, crossover trial conducted over 4 weeks. On each week, subjects abstained for 5 days from dietary caffeine and instead took capsules totaling 0 mg, 300 mg, and 600 mg/day in 3 divided doses. On day 6, they took capsules with either 0 mg or 250 mg at 9:00 AM, 1:00 PM, and 6:00 PM, and cortisol was sampled from saliva collected at 8 times from 7:30 AM to 7:00 PM.

Results
After 5 days of caffeine abstinence, caffeine challenge doses caused a robust increase in cortisol across the test day (p < .0001). In contrast, 5 days of caffeine intake at 300 mg/day and 600 mg/day abolished the cortisol response to the initial 9:00 AM caffeine dose, although cortisol levels were again elevated between 1:00 PM and 7:00 PM (p = .02 to .002) after the second caffeine dose taken at 1:00 PM. Cortisol levels declined to control levels during the evening sampling period.

Conclusion
Cortisol responses to caffeine are reduced, but not eliminated, in healthy young men and women who consume caffeine on a daily basis.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2257922/
__________________
Fitness Spotlight
The IF Life
Mike ODonnell is offline   Reply With Quote
Old 11-17-2009, 04:42 PM   #4
George Mounce
Senior Member
 
Join Date: Mar 2008
Location: Mississippi
Posts: 945
Default

Quote:
Originally Posted by Steven Low View Post
1 cup of coffee isn't going to kill you...

Although if you're drinking 4-5+ then you might want to admit you have a problem and drink more water.
Whats the problem? I actually very much enjoy the taste, smell, texture, aroma, and downright goodness of premium well brewed Peet's coffee. 5 a day isn't out of the picture as its a wonderful drink to have on a cold day.

I don't buy good coffee as this evil drink, its got a 1000 years of backing. Now, those energy drinks are horrible for you, but good coffee? Nah....
George Mounce is offline   Reply With Quote
Old 11-17-2009, 05:05 PM   #5
Steven Low
Super Moderator
 
Join Date: Mar 2007
Posts: 3,091
Default

Quote:
Originally Posted by George Mounce View Post
Whats the problem? I actually very much enjoy the taste, smell, texture, aroma, and downright goodness of premium well brewed Peet's coffee. 5 a day isn't out of the picture as its a wonderful drink to have on a cold day.

I don't buy good coffee as this evil drink, its got a 1000 years of backing. Now, those energy drinks are horrible for you, but good coffee? Nah....
Shrug.
__________________
Posts NOT intended as professional medical, training or nutrition advice.
Site // Bodyweight Strength Training Article // Overcoming Gravity Bodyweight Book
Steven Low is offline   Reply With Quote
Old 11-17-2009, 05:14 PM   #6
Derek Weaver
Senior Member
 
Join Date: Nov 2007
Posts: 2,642
Default

I'm with George. I do tend to cycle my intake though. Not on purpose, I just go through periods when I don't want to drink as much. Maybe this is my body saying it's had enough and needs some downtime from the caffeine intake.

When I am fasting, which isn't as often as it used to be... I get wired. I can drink 5+ cups as well/day, but the effect is certainly more intense when fasted.
__________________
Quote:
And if you don't think kettleball squat cleans are difficult, I say, step up to the med-ball
- CJ Kim
Derek Weaver is offline   Reply With Quote
Old 11-17-2009, 06:29 PM   #7
Garrett Smith
Senior Member
 
Garrett Smith's Avatar
 
Join Date: Feb 2007
Location: Tucson, AZ
Posts: 4,368
Default

I'm in the process of giving it up right now. I'll still use it for meets, have it on occasion with a breakfast.

I need to make my coffee intake like my beer...not an every day thing, not even close.
__________________
Garrett Smith NMD CSCS BS, aka "Dr. G"
RepairRecoverRestore.com - Blood, Saliva, and Stool Testing
My radio show - The Path to Strength and Health
Garrett Smith is offline   Reply With Quote
Old 11-18-2009, 08:24 AM   #8
Mike ODonnell
Senior Member
 
Mike ODonnell's Avatar
 
Join Date: Nov 2006
Posts: 3,596
Default

Caffeine is one of those things...the more you drink, the more you adapt to it. Hence why chronic drinkers need more and more coffee to get the "buzz" over time. Everyone has their own sensitivity level (which mine has gone way up since doing IF). Best idea is to cycle on and off, and watch high intake while fasting (to try and keep cortisol response minimal during a time where it may only increase more amino acids being used for fuel).
__________________
Fitness Spotlight
The IF Life
Mike ODonnell is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -7. The time now is 09:35 PM.

Powered by vBulletin Version 3.6.2
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Subscribe to our Newsletter


Receive emails with training tips, news updates, events info, sale notifications and more.
ASK GREG

Submit your question to be answered by Greg Everett in the Performance Menu or on the website

Submit Your Question
WEIGHTLIFTING TEAM

Catalyst Athletics is a USA Weightlifting team of competitive Olympic-style weightlifters with multiple national team medals.

Read More
Olympic Weightlifting Book
Catalyst Athletics
Contact Us
About
Help
Newsletter
Products & Services
Gym
Store
Seminars
Weightlifting Team
Performance Menu
Magazine Home
Subscriber Login
Issues
Articles
Workouts
About the Program
Workout Archives
Exercise Demos
Text Only
Instructional Content
Exercise Demos
Video Gallery
Free Articles
Free Recipes
Resources
Recommended Books & DVDs
Olympic Weightlifting Guide
Discussion Forum
Weight Conversion Calculator