17 replies to this topic

[KiaKaha]

has anyone used this after a workout to recover.. Friend with CF says she uses after her workouts and it has really helped her with recovery whereas before she would be barely able to lift a finger from fatigue she can now do normal workouts

[chops]

Dextrose is just another form of sugar.

[Pebble]

Yes more specifically I heard (one a science type podcast from memory) that Dextrose is just a solid form of Glucose.

A bit off topic though ....I've got a jar of Glucose in the pantry as I needed it for cooking something in particular. I was actually wondering if it's better to have a teaspoon of that in my cup of coffee compared to having a teaspoon of sugar? Sugar being essentially fructose (well from what I understand anyway).
Yeah shouldn't believe everything you hear on tv but on a morning show there was a bloke who was basically saying how bad sugar is for you and you should use dextrose instead because sugar just gets deposited as fat. The problem I had is that he was basically saying to lose weight all you have to do is cut out sugar, and apart from that you can eat as much of whatever else you like.
Personally I'm more of an "anything in moderation" kind of person, you can't just cut out one aspect of your diet and expect a miracle!

[Jason M]

Dextrose is a monosaccharide. It is a form of glucose, known as D-glucose. So the terms dextrose and glucose are often use interchangeably. Dextrose is about the simplest form of "sugar" being one molecule. Whereas sugar itself is a disaccharide, 2 molecules of glucose joined together.

Sounds like the CF friend may have just needed to add some carbohydrate to her diet and dextrose was what she fid it with. More than likely anything like honey, fruit, sugar, sports drink etc would have worked.

[brewer]

NERD ALERT

Jason M, on 02 October 2011 - 05:38 AM, said:

Whereas sugar itself is a disaccharide, 2 molecules of glucose joined together.

Sort of, sucrose (table sugar) is a molecule of glucose and one of fructose.

Both glucose & fructose have the same empirical formula C₆H₁₂O₆, however they differ structurally, fructose adopting a cyclic six-membered structure.

[flyingemu]

I'm no foodie nerd, but I know dextrose is favoured over other sugars in gels etc because they are digested slower and therefore give a more prolonged energy hit. That said, I wouldn't have a gel for recovery - chocolate milk and a steak sandwich or lasagne would be better! And beer. Lots of beer....

[arrtgrrl]

emu i thought champagne was your drink dejour these days lol

[flyingemu]

arrtgrrl, on 02 October 2011 - 10:01 AM, said:

emu i thought champagne was your drink dejour these days lol

champagne, yes.... and beer, cider, rum, wine.... not fussy!

[vat]

brewer, on 02 October 2011 - 06:17 AM, said:

NERD ALERT

Sort of, sucrose (table sugar) is a molecule of glucose and one of fructose.

Both glucose & fructose have the same empirical formula C₆H₁₂O₆, however they differ structurally, fructose adopting a cyclic six-membered structure.

Okay - genuine question here, trying to get a better understanding here, no agenda.

Given that the fructose structure is so similar to glucose, what is behind the current thinking that fructose is a substantial contributor to obesity, or is that just an effect of its use in High Fructose Corn Syrup?  Do they interact differently with the body during the digestive process?

[brewer]

Short answer is yes. Fructose is not absorbed in the same way as glucose.

See this link.

[vat]

Okay, so it's a fructose thing rather than a corn syrup specific thing.

From memory the body's normal reaction to excess glucose is for the bowel to suddenly 'dump' it (hence the rush for the toilets early in the marathon as people go that little bit too far with the sports drinks and gu's), would that happen with fructose?

The only sports drink I've come across with glucose only is the Staminade in its pre-mix form (as in you add water), everything else seems to have various degrees of fructose and the thousand other terms they substitute in to further muddy the waters.

[brewer]

Vat, Couldn't find any mention about the dump effect.

[Greenman]

I heard the body converts fructose immediately to fat.  I use glucose (dextrose) instead now.  Anyway...glucose is YUM!!!

[MrUniqueName]

Greenman, on 28 October 2011 - 04:28 PM, said:

I heard the body converts fructose immediately to fat.

Another supposed problem is that your body doesn't register the calories coming from sucrose, as opposed to all other sugars (and food types). So for example, if you eat something 'worth' 200 calories but 100 calories comes from sucrose, then your body only thinks it's had 100 calories (the non-sucrose part). It then wants to eat another 100 calories worth to get to the 200 it's needing to feel satisfied, so you go and eat another 100 calories. The result is your body thinks it's eaten 200 calories, when in fact it's eaten 300 calories.

[wj04]

I bought a Dextrose pack at the Sydney ITU Convention at their marquee earlier in the year. The pack included a bars, electrolyte and a couple packets of Dextrose Tabs, which I decided to use at the Sydney Marathon, as I had a bad bout of a stomach bug and was paranoid about not being able to keep the muscles primed. I managed to chew about six tabs and whatever the constitution they worked a treat, together with the GU Gels and water only. √  wj

[marcelgeuens]

I gave it a few tries. It does give a certain boost, but it doesn’t appear to be very spectacular. Some (incomplete) info stored here:

here

Not available anymore in my country though :-(

[walker1st]

vat, on 02 October 2011 - 07:49 PM, said:

Okay, so it's a fructose thing rather than a corn syrup specific thing.

From memory the body's normal reaction to excess glucose is for the bowel to suddenly 'dump' it (hence the rush for the toilets early in the marathon as people go that little bit too far with the sports drinks and gu's), would that happen with fructose?

The only sports drink I've come across with glucose only is the Staminade in its pre-mix form (as in you add water), everything else seems to have various degrees of fructose and the thousand other terms they substitute in to further muddy the waters.

I thing that all the dumping epizodes are fructose related not glucose at all

and yes all so called "sport " drinks are fructose based

however there is very cheap glucose available from supermarket, on the shelves in safeway it is with the bakeing tools and baking suplemets -

glucose has honey like consistency but is completely clear like a liquid glass

[Colin]

MrUniqueName, on 28 October 2011 - 04:47 PM, said:

Another supposed problem is that your body doesn't register the calories coming from sucrose, as opposed to all other sugars (and food types). So for example, if you eat something 'worth' 200 calories but 100 calories comes from sucrose, then your body only thinks it's had 100 calories (the non-sucrose part). It then wants to eat another 100 calories worth to get to the 200 it's needing to feel satisfied, so you go and eat another 100 calories. The result is your body thinks it's eaten 200 calories, when in fact it's eaten 300 calories.

Can't get that logic, sorry. That's not how energy replacement works. You are confusing satiation with enegy requirement.

Strange logic given the company in your signature