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 04-07-2004, 06:31 AM   #1
Roy
Departed Roy  is offline
 
Profile:
Join Date: Jan 1970
 
Posts: 328
There are many foods that just arent on that website such as blueberries, raspberries, nectarines, cane sugar, and the list goes on. What are some other sources? And does anyone know the GI of berries and nectarines?

Cheers

Roy
  Reply With Quote
Old 04-07-2004, 08:32 AM   #2
Neill S. Occhiogrosso
Member Neill S. Occhiogrosso is offline
 
Profile:
Join Date: Oct 2002
Location: Philadelphia  PA
Posts: 177
I know that this wasn't your question, but I've read some articles lately that claim the Insulin Index is a more valuable tool than the Glycemic Index. In the spirit of hijacking a thread :happy:, does anybody know more about this or have good references?

Roy:

I wasn't able to find much, but most berries seem to have a good glycemic index, all lower than fifty.
  Reply With Quote
Old 04-07-2004, 08:47 AM   #3
Robert Wolf
Member Robert Wolf is offline
 
Profile:
Join Date: Oct 2002
Location: Chico  CA
Posts: 2,669
Neill-
You are right. And, it gets even murkier from there.

Glycemic index refers to a raise in blood glucose levels.

Glycemic load is how much carbs one ingests.

Insulin index refers to the insulin response to a given meal.

One can have a low GI meal with a huge GL and a small insulin response by eating fructose. This however is a recipe for disaster because fructose deranges liver function and causes almost immediate insulin resistance. As fructose is a ketone sugar it is more prone to participate in non-enzymatic glycosolation of proteins. Not good.

This can get complex and confusing to say the least. The way around it is to eat foods which are regarded to be "paleo" and "in season". This creates built in variability and can save one quite a bit of headache.
Robb

  Reply With Quote
Old 04-07-2004, 10:10 AM   #4
Jason Lauer
Member Jason Lauer is offline
 
Jason Lauer's Avatar
 
Profile:
Join Date: May 2008
Location: York  PA
Posts: 158
Robb, Does this mean that having a meal with fruits being the main or only carbohydrate bad? I tend to eat apples, oranges, and berries mostly since I pretty much fixed my bread problem.
  Reply With Quote
Old 04-07-2004, 11:54 AM   #5
Robert Wolf
Member Robert Wolf is offline
 
Profile:
Join Date: Oct 2002
Location: Chico  CA
Posts: 2,669
Jason-

Fructose replenishes liver glycogen first and once that is done we start getting fat spill over with additional fructose. Low glycemic LOAD but high glycemic INDEX fruits like mellon, berries and citrus are perhaps better. I would just work to get a variety of fruit and veggies, preferably local and in season.
Robb
  Reply With Quote
Old 04-07-2004, 01:18 PM   #6
Paul Kayley
Member Paul Kayley is offline
 
Profile:
Join Date: Sep 2003
Location: York  North Yorkshire
Posts: 195
Robb - Very interesting what you were saying about fructose...."This however is a recipe for disaster because fructose deranges liver function and causes almost immediate insulin resistance. As fructose is a ketone sugar it is more prone to participate in non-enzymatic glycosolation of proteins. Not good.".... what does this mean? Are you refering to a deranged liver function from that which is created via the 'Metabolic Shift'? Also are you meaning long-term and continued overspill of the liver causing glucose dominance and therefore gradual insulin resistance, or is there some more immediate reaction to fructose?

Could you also educate me a little about ketone sugars. I only thought that ketones could be derived from fats or ketogenic aminos?

I'm asking because I use fructose as a 'liver-support' during my longest sessions.
  Reply With Quote
Old 04-07-2004, 05:21 PM   #7
Roy
Departed Roy  is offline
 
Profile:
Join Date: Jan 1970
 
Posts: 328
Funny that starches are "Bad" and now fruit is "bad" because of the fructose. What carbohydrates are good, besides leafy green vegetables(which is just fiber anyway)?

The fruit I eat is mixed berries, apples, grapes, and peaches. Bad, right?

Cheers

Roy
  Reply With Quote
Old 04-08-2004, 08:49 AM   #8
Kevin Roddy
Member Kevin Roddy is offline
 
Profile:
Join Date: May 2003
Location: Harrison TWP  Michigan
Posts: 769
Roy -


Don't think too heavy about it. If you're getting where you need to be, then you're doing something right. :happy:
  Reply With Quote
Old 04-08-2004, 04:00 PM   #9
Robert Wolf
Member Robert Wolf is offline
 
Profile:
Join Date: Oct 2002
Location: Chico  CA
Posts: 2,669
Paul-Try putting fructose an dliver function into pubmed. I think that will track down the items you need.

Sugars come in aldehyde and ketone varieties. this refers to their active group which is involved in reactions with othr molecules and with themselves when in the cyclic isomer. Put "aldehyde ketone sugar" into google and you should get some good stuff there.

Roy-

It is not that any of this is "bad" but what happens reegarding the metabolic and hormonal consequences of eating these foods can get complex...if you let it!
  Reply With Quote
Old 04-09-2004, 01:29 AM   #10
Jan de Jong
Departed Jan de Jong is offline
 
Profile:
Join Date: Jan 1970
 
Posts: 31
Roy, just eat the fruits. It's almost impossible to get you carb requirement in from just leafy green veggies. Some guys are taking it way to far, no fruit, no nuts, no coffee. What's next, no sex and living like a monk? Just do what feels right. If you are happy with the way your preformance is going and your BF% in check don't worry about it. Besides fruits contain tons of nutrients that are of benifit to you.

Jan.
  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


All times are GMT -7. The time now is 10:59 PM.


Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
CrossFit is a registered trademark of CrossFit Inc.