I know this has become the common catchcry of all would be intellectuals here on GetBig.... "Show me the peer reviewed studies!" ...sadly it's only called upon in defence of arguments so unfounded that they belie a serious lack of understanding on behalf of those making the demands.
Blake wants peer reviewed studies (presumably published in a medical journal) that show a link between adult onset diabetes and the ingestion of glucose in post workout meals among healthy exercising adults.
Well, there are none.
Just like there are no studies specifically addressing a causal link between the effects of gravity on heavy musical instruments and the injuries incurred by healthy exercising people intersecting the line of gravitys effect on the aforementioned musical instrument. Still... I wouldn't want to step under a falling piano.
Studies like the one Blake wants to see haven't, and won't be done... because most scientists in the field would consider them to be redundandant.
The link between large amounts of glucose and diabetes is firmly established.
The mechanism involved is firmly established.
The link between high GI, processed foods and diabetes is firmly established.
Highly processed, simple saccharides (sugars) such as maltose, fructose, sucrose and glucose/dextrose, if eaten in large quantities WILL impair insulin/glucose sensitivity EVEN in healthy exercising adults... and will eventually lead to the myriad illnesses and maladies related to impaired insulin/glucose sensitivity, most notably obesity and diabetes.
I do however understand Blake's line of thinking. The difference between banana's and glucose powder is more complicated than the end result of glucose molecules in the bloodstream. In a banana the glucose molecules are bound up in starches (amylopectin and amylose) the quantities of which vary (a very ripe banana is mostly amylopectin, giving the fruit a GI of 80ish, whereas a green banana is mostly amylose giving the fruit a GI of 40ish). The glucose you get from your GI 70 banana is digested complete with all the water, phytochemicals, vitamins, minerals, salts and nutrients your body would expect to be part of the digestive process, the same cannot be said of glucose powder. Processed sugars are nutritionally insipid, they leech vitamins and minerals from the tissues, upset the osmotic balance of the digestive tract due to their dehydrating properties and are just downright counter to health.
Guys, seriously read up on this stuff. Healthy natural eating is the way to go. The only supplements a (natural) bodybuilder should use are those that augment an already healthful high protein, high lipid, nutritious wholefood diet.
I'd recommmend:
-a high dose multivitamin, multimineral
-vitamin C (3+ grams per day)
-vitamin E (800 iu per day)
-Udo's Choice Ultimate Oil Blend
-a good quality whey protein concentrate
(or a whey protein isolate for those without financial restrictions)
-a bedtime zinc/magnesium mix
-creatine
-NAC (N-acetyl-cysteine) 500 mg ...it's the mother of all antioxidants
Again, guys please do some of your own research... any inkling of nutrtional savy would tell you that mixing 50 or 100 grams of sugar into your post workout shake is madness.
The Luke