CrossFit Discussion Board  

Go Back   CrossFit Discussion Board > CrossFit Forum > Nutrition
CrossFit Home Forum Site Rules CrossFit FAQ Search Today's Posts Mark Forums Read

Nutrition Diet, supplements, weightloss, health & longevity

Reply
 
Thread Tools
Old 11-21-2008, 10:32 PM   #1
Lei Fei
Member Lei Fei is offline
 
Lei Fei's Avatar
 
Profile:
Join Date: Sep 2007
Location: Chapel Hill  NC
Posts: 48
Smoothies and Glycemic Index: can't find answer anywhere!

I'm paleo/zone like many here and I often find myself making veggie/fruit smoothies due to my schedule. It usually consists of

1 fruit (usually an apple, pear, or cranberries)
a crapload of a leafy greens
flaxseed oil/EVOO/PB/Almond Butter
parsley/cilantro/ginger for flavoring

my question is regarding the fruit - I know that we're all trying to keep our blood sugar constant and prevent spikes in insulin etc....that's all due to the glycemic index and load of the foods we eat - which is based on how fast the sugar is processed in our bodies. I'm sure that blending an apple will increase the glycemic index of the apple, but how much? Apple juice is very bad for you since the sugar is right there to get absorbed and there's no fiber to slow the absorbsion, but if I blend the apple, the fiber isn't gone - it's still there in the blender.

The glycemic index of an apple is 38.
The glycemic index of apple juice is 40.

So if the glycemic index of an apple (which is supposedly good) and apple juice (supposedly bad since it all gets absorbed at once) differs by 2 points, what makes juices bad?
  Reply With Quote
Old 11-22-2008, 05:00 AM   #2
Jay Cohen
Member Jay Cohen is offline
 
Profile:
Join Date: Feb 2006
Location: Sharpsville  PA
Posts: 3,388
Re: Smoothies and Glycemic Index: can't find answer anywhere!

Lei;

I wouldn't sweat it. Sounds like you have your nutrition program dialed in. Enter your smoothie ingredients into Fitday, see what you get as far as your macro breakdowns.

Also consider Glycemic Load vs Glycemic Index as an indicator.
  Reply With Quote
Old 11-22-2008, 08:11 AM   #3
Zach S
Time-Out Zach S is offline
 
Profile:
Join Date: Jul 2008
Location: Duluth  MN
Posts: 492
Re: Smoothies and Glycemic Index: can't find answer anywhere!

no protein?
  Reply With Quote
Old 11-22-2008, 09:01 AM   #4
Christian Mason
Member Christian Mason is offline
 
Christian Mason's Avatar
 
Profile:
Join Date: Sep 2007
Location: Pittsburgh  PA
Posts: 298
Re: Smoothies and Glycemic Index: can't find answer anywhere!

It's a bit of a challenge to incorporate a lot of protein into a strictly paleo shake.

I've just "bit the bullet" and bought some whey protein, which I haven't used in years in an attempt to improve the ratios. People seem to have pretty mixed feeling about processed protein powders though....
__________________
Form, function, and curling in the squat rack - http://www.fitnessfail.com (wfs)
  Reply With Quote
Old 11-22-2008, 11:19 AM   #5
Lei Fei
Member Lei Fei is offline
 
Lei Fei's Avatar
 
Profile:
Join Date: Sep 2007
Location: Chapel Hill  NC
Posts: 48
Re: Smoothies and Glycemic Index: can't find answer anywhere!

Quote:
Originally Posted by Zach Schul View Post
no protein?
I enjoy eating meat so I'll always have it separately and I try to stay away from any kind of processed protein as much as possible.
  Reply With Quote
Old 11-22-2008, 11:29 AM   #6
Zach S
Time-Out Zach S is offline
 
Profile:
Join Date: Jul 2008
Location: Duluth  MN
Posts: 492
Re: Smoothies and Glycemic Index: can't find answer anywhere!

Quote:
Originally Posted by Christian Mason View Post
It's a bit of a challenge to incorporate a lot of protein into a strictly paleo shake.

I've just "bit the bullet" and bought some whey protein, which I haven't used in years in an attempt to improve the ratios. People seem to have pretty mixed feeling about processed protein powders though....
You can do egg whites if your not worried about salmonella. I always have some high quality whey around just incase though.

Quote:
Originally Posted by Lei Fei View Post
I enjoy eating meat so I'll always have it separately and I try to stay away from any kind of processed protein as much as possible.
Thats good, i was just wondering because you said you follow a paleo/zone.
  Reply With Quote
Reply


Thread Tools

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 Off
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Best Free glycemic Index?? Gabriel desGarennes Nutrition 2 08-09-2008 10:44 PM
A silly question.. But couldn't find answer Ilya Gurman Exercises 2 07-23-2008 02:30 AM
Green Smoothies Frank Menendez Nutrition 7 07-20-2007 12:05 AM
Glycemic index Kevin McKay Nutrition 4 12-13-2006 07:38 PM
Value of glycemic index questioned Mikael Všlitalo Nutrition 8 12-10-2005 12:41 PM


All times are GMT -7. The time now is 03:38 PM.


Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
CrossFit is a registered trademark of CrossFit Inc.