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Old 02-27-2006, 09:21 PM   #1
Jim Melani
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Most diet/nutrition books I've read suggest avoiding dried fruit, but call for eating fresh fruit. So how is eating a grape vs. eating a raisin along with a glass of water different to my body?
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Old 02-27-2006, 09:30 PM   #2
Kevin McKay
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I think the gi of a raisin is much higher than that of a grape so maybe the structure of the sugar changes when it dries.... That is just a guess I am sure an expert will check in shortly with a more definitive answer.
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Old 02-28-2006, 08:06 AM   #3
Paul Symes
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I thought it was just that a handful of raisins contains more sugar than a handful of grapes.

Raisins are more calories crammed into a smaller area so it's easier to eat too many of them.

That's what I thought anyway


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Old 03-02-2006, 12:58 AM   #4
Tony Ferous
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Yes, you can easily eat too many, esp. prunes!
I also wonder if they are oxidised, esp. sundried fruit/veg.
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Old 03-02-2006, 11:00 AM   #5
Garrett Smith
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The glycemic index of raisins is higher than that of grapes. That pattern is true of all dried fruits vs. whole fruits, to my knowledge.

I believe this is because the drying process breaks down a portion the cell walls and allows the body easier and quicker access to the sugar, thus a higher GI.

The GI is based on a certain number of carbs in a food, I believe it is 100 grams, not a volume of a particular food, so comparing handfuls isn't really the issue (especially if measuring out one's carb blocks).

The longer a fruit/veg has been off the parent plant, the fewer vitamins and more oxidized it will be. Drying and exposure to the sun would accelerate those processes.
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Old 03-02-2006, 08:15 PM   #6
Scott Kustes
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The GI is based on a certain number of carbs in a food, I believe it is 100 grams, not a volume of a particular food, so comparing handfuls isn't really the issue (especially if measuring out one's carb blocks).

This is true, but the issue comes in because people tend to eat in volume, exacerbating the problem. Just like 1/3 cup of corn for 1 block or 4 cups of broccoli...it's hard to eat just 1/3 cup of corn.
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Old 03-02-2006, 09:02 PM   #7
Garrett Smith
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Scott,
I understand the portion control issue, I'm answering the original question about the GI of grapes vs. raisins, not getting into how people eat in volume(s).
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Old 03-03-2006, 03:17 AM   #8
Paul Symes
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The original question didn't mention GI. Maybe there is a clever answer to the question but the obvious answer sometimes is right too. :kiss:
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Old 03-03-2006, 10:46 AM   #9
Scott Kustes
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Garrett, figured you understood it...it was actually more of a piggyback for others rather than info to you.
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Old 03-03-2006, 06:35 PM   #10
Nikki Young
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What i find interesting is that the antioxidant level of prunes (per 100G) is 5570, and the antioxidant level of plums (per 100G) is 949.

Raisins have an antioxidant level (per 100G) of 2400.
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