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Whey protein powder ?

Old 04-15-09, 09:23 PM
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Whey protein powder ?

Ok I don't know much about the stuf ! I read that its good for help building muscle and loads a things BUT . Iam diabetic how will this effect it ??? . What are the pros and cons of adding it to your diet in say smoothies ?
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Old 04-16-09, 04:44 AM
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For diabetics, adding whey protein (especially whey protein isolate) will moderate the glycemic effect of the shake. Casein will further moderate the glycemic effect, but it will be less helpful for a recovery drink, since it metabolizes very slowly.
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Old 04-16-09, 01:23 PM
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Originally Posted by pipes
Ok I don't know much about the stuf ! I read that its good for help building muscle and loads a things BUT . Iam diabetic how will this effect it ??? . What are the pros and cons of adding it to your diet in say smoothies ?
It shouldn't be a problem or an issue as long as you don't go nuts with it. If you have any kidney issues, talk it over with your doctor before incorporating it in your diet. The metabolism of protein yeild amonia which the kidneys work hard to excrete. If you have nephropathy, it may be that the kidneys can't eliminate the extra amonia. That would be bad, real bad.

So...on to a little more info. Whey is a faster metabolizing protein. It will enter the blood stream and peak amino acid concentrations will occur within an hour or two. Casein is the other main protein in milk. It forms a lump in the stomach and takes much longer to metabolize then whey. It will cause peak amino acid concentrations 4-6 hours after consumption. Many bodybuilder types recomend taking whey right after working out to replace what you used up during the workout and to speed cellular repair. They also recommend taking a casein protein at night to help maintain a positive nitrogen balance overnight.
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Old 04-16-09, 04:48 PM
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Originally Posted by ModoVincere
It shouldn't be a problem or an issue as long as you don't go nuts with it. If you have any kidney issues, talk it over with your doctor before incorporating it in your diet. The metabolism of protein yeild amonia which the kidneys work hard to excrete. If you have nephropathy, it may be that the kidneys can't eliminate the extra amonia. That would be bad, real bad.

So...on to a little more info. Whey is a faster metabolizing protein. It will enter the blood stream and peak amino acid concentrations will occur within an hour or two. Casein is the other main protein in milk. It forms a lump in the stomach and takes much longer to metabolize then whey. It will cause peak amino acid concentrations 4-6 hours after consumption. Many bodybuilder types recomend taking whey right after working out to replace what you used up during the workout and to speed cellular repair. They also recommend taking a casein protein at night to help maintain a positive nitrogen balance overnight.
Humans excrete waste nitrogen as urea not ammonia.
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Old 04-16-09, 05:25 PM
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Originally Posted by Enthalpic
Humans excrete waste nitrogen as urea not ammonia.
I respect your opinions, but Dr. Misner over at Hammer Nutrition says not to use whey during exercise because of ammonia byproduct which decreases efficiency. He's probably got a paper over there somewhere which discusses the reaction, but I found this quickly: https://www.hammernutrition.com/za/HN...RTICLE.ID=1275

A quick google shows many references to ammonia being a byproduct of protein metabolism, though they say it is detoxified in the liver, nothing to do with the kidneys. Urea is excreted through the kidneys. And it's sure ammonia I smell in my bike clothes after a hard ride.

In any case, I don't think this has anything to do with diabetics using whey protein after exercise, which I'd guess is completely fine.
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Old 04-16-09, 06:46 PM
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Originally Posted by Enthalpic
Humans excrete waste nitrogen as urea not ammonia.
yes...the liver? converts it to urea. I skipped that step.
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Old 04-16-09, 08:44 PM
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Originally Posted by Carbonfiberboy
I respect your opinions, but Dr. Misner over at Hammer Nutrition says not to use whey during exercise because of ammonia byproduct which decreases efficiency. He's probably got a paper over there somewhere which discusses the reaction, but I found this quickly: https://www.hammernutrition.com/za/HN...RTICLE.ID=1275

A quick google shows many references to ammonia being a byproduct of protein metabolism, though they say it is detoxified in the liver, nothing to do with the kidneys. Urea is excreted through the kidneys. And it's sure ammonia I smell in my bike clothes after a hard ride.

In any case, I don't think this has anything to do with diabetics using whey protein after exercise, which I'd guess is completely fine.
You certainly produce ammonia, but it is -normally- converted very quickly. Hyperammonemia causes brain damage.
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Old 04-17-09, 06:58 AM
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Its my understanding that the urea is also emitted through the skin in sweat. If you are smelling amonia, its probably due to bacteria on your skin or in your clothing converting the urea back to amonia as part of their metabolic process. But I'm not 100% certain that is the case.
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Old 04-19-09, 10:45 PM
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I mix chocolate whey with honey nut oatmeal and it tastes just like a no bake cooke
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Old 04-20-09, 07:30 AM
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Here is what the 2008 Canadian Diabetes Association clinical practice guidelines says about protein and diabetes

There is no evidence to suggest that the usual recommended
protein intake (15 to 20% of total daily energy) needs to
be modified for people with diabetes. Essential amino acids
are toxic in excess (49), when intake is at a rate that exceeds
the body’s capacity to eliminate the end products of their
metabolism.
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