
Originally Posted by
Giants11
J Beaty: Some "experts" claim coffee should be avoided because of the insulin response that ensues, in lieu of the recent studies that have come out on coffee and blood glucose what is your stance on this?
L Norton: While acute caffeine ingestion may impair glucose tolerance, studies suggest that long term caffeine ingestion actually lowers the risk of developing type II diabetes(1). In my opinion there is probably not enough information at this point to say definitively one way or the other, but I believe caffeine is fine in moderation, much like many other compounds, if you don't abuse it there is little to worry about.
W Brink: As far as I am concerned, there is no sunshine without coffee! Kidding aside, it's essential to separate an effect seen in the lab and the larger picture. Insulin is an essential hormone in the pathogenesis of various afflictions. It's also a hormone we can't live with out, and there is not a direct insulin spike = terrible things happen equation, no matter how hard people attempt to paint insulin as the mother of bad guy hormones. Do we see a correlation between coffee and obesity? No. In fact, a study I was just reading found decreased rates of type 2 diabetes in men who drank coffee. If coffee had a negative effect on whole body glucose metabolism, that is it elevated insulin for long periods of time, or decreased insulin sensitivity to a great degree, or what have you, we would not see this reduced risk of type 2 and coffee consumption. If anything, it appears to have positive effects on glucose metabolism. There are several studies that suggest coffee reduces the rates of metabolic syndrome, which is yet more proof that it's far too over simplistic to paint coffee as a negative due to one outcome, in this case affects on insulin. There have also been a bunch of other potential benefits to coffee drinking, so as usual, it's about balance and common sense. A few cups of coffee per day are fine, 10 cups a day, probably not such a good idea. It's also possible that coffee may be contra indicated for some populations, but perfectly fine for the majority of people.
J Hale: I am assuming you are referring to caffeinated coffee. Caffeine increases the release of catecholamines (adrenaline, nor-adrenaline, dopamine). Adrenaline hormones increase FFA mobilization from fat cells. Dopamine increases feelings of pleasure and well being. Increased FFA blood levels due to high concentrations of adrenaline hormones induce insulin resistance. The effect is generally short term. The severity varies among individuals. We have to ask ourselves is insulin resistance a bad thing? Not always just depends.
Fat cell insulin resistance means insulin can’t inhibit fat breakdown or promote nutrient storage in fat cell. Muscle cell resistance means the muscle cell can’t uptake glucose therefore it use an alternative source of fuel FFAs. The glucose is utilized by the brain and nervous system and other tissues that need it. During times of dieting and low carbs insulin resistance is not necessarily a bad thing. When eating excess calories it generally is a bad thing.
With that being said athletes have used coffee for years as a performance enhancer. Endurance athletes often ingest coffee because of its benefits on fat metabolism. Some studies suggest coffee may actually reduce chance of developing type 2 diabetes. Coffee contains other substances which have also shown health benefits. I recommend coffee if your body can handle it. Some people get the shakes and just can’t seem to handle the CNS boost. There is also a big difference between drinking 2 cups of coffee and 10. Moderation is probably the key to enhancing performance and preventing any negative health consequences.
A Aragon: I’m a coffee lover, so I’ll defend it with all my might, research be damned!! But seriously, all you can do in this instance is take a hard look at the data. The anti-coffee camp says that coffee consumption contributes to insulin resistance. This is a classic case of focusing on acute effects while disregarding what really matters – the chronic effects, along with a few critical details. This is also a case of context-confusion. Most of the work leading to this conclusion is based on obese folks using isolated alkaloidal caffeine, not coffee. So, to begin with, that pretty much takes most athletes out of the picture, who use caffeine for ergogenic purposes. They use it to increase exercise capacity, which inherently improves insulin metabolism, so pretty much the issue ends right there.
But we’re unrepentant nerds here, so we can still look at the data. Caffeine acutely raises insulin response when applied to oral glucose tolerance tests. Okay, great.. Cocoa raises insulin response when coingested with other foods, but long-term cocoa use also appears to improve insulin sensitivity. Rewind back to coffee. Coffee’s acute insulinogenic nature doesn’t have any negative impact when studies are carried out long-term. For example, Several epidemiologic studies found that ingestion of caffeinated (and decaffeinated) coffee may actually reduce the risk of diabetes compared with those who never drank coffee. In addition, coffee was recently seen to have a beneficial effect on endothelial function, which implies cardiovascular benefit. For those not impressed by the uncontrolled nature of epidemiology & prospective studies, I challenge anyone to compile the controlled studies on caffeine and dish out the conclusion that moderate coffee consumption has negative effects on health markers.
In addition, there are non-caffeine compounds in coffee currently under investigation such as chlorigenic acid, trigonelline, quinides, antioxidants, and others that have the ability to enhance insulin sensitivity. Moral of the story: a) Athletes (and regular folks) can use caffeine and/or coffee to their distinct advantage for performance & bodycomp improvement b) Regardless of population in question, coffee can actually improve insulin sensitivity over the long term, likely due to its various beneficial non-caffeine phytonutrients. Check out this recent review, it covers way more than I’d ever care to:
Coffee, diabetes, and weight control -- Greenberg et al. 84 (4): 682 -- American Journal of Clinical Nutrition
J Beaty: What are the most ignorant dietary theories and philosophies out there that are still incorporated by the bb population?
L Norton: 1. Don't eat carbohydrates after 'X' o'clock. People believe that since they are closer to sleeping they should curtail carbohydrate intake, this is simply ludicrous. Carbohydrates at night don't make you fat; too many total calories make you fat. Additionally, if you train at night you NEED those carbohydrates to
properly recover.
2. The notion that high rep ranges stimulate slow twitch fibers & low reps stimulate fast twitch fibers. The fact of the matter is that while high reps do
stimulate slow twitch fibers, SO DO LOW REPS with heavy weights. You see your fiber types are recruited in order of need: slow twitch first, then intermediate, then fast. So as you can see, if you are lifting heavy loads for low reps you have already
maximally stimulated your slow twitch fibers.
3 The notion that a specific rep ranges yields the best results. Some people believe you should only lift high reps because the pump is so important while others believe that you should only do low reps with heavy weights because training this way maximally activates all fiber types. The reality is ALL rep ranges have benefits and they should ALL be utilized to achieve optimal results.
W Brink: I actually think things in this area have improved greatly. The advent of the Internet has probably helped a great deal there. It seems that almost everyone at this point understands and appreciates the basics, which is you need adequate protein, fat, and carbs to gain lean body mass. For example, the ultra high carb low fat diets popular back in the day have all but disappeared. Most people know they need some fat in their diet, know they need some EFA's, and know the basics between low GI and high GI carbs, and so on. That's not to say there is not confusion and questions about all of the above, but as a general rule, I think most people have at least a basic understanding better then they did say 10 years ago. The area of real ignorance that seems to persist no matter how hard people like me attempt to counter it is in the area of supplementation. Supplements seem an endless source of confusion and scams.
J Hale: A couple that come to mind immediately are the assumption bbers trying to get lean should not eat fruit and bbers over-reliance on supplements. The fear of fruit comes from studies suggesting 50gms or more of fructose per day can upregulate de novo lipogenesis (fat synthesis in liver), increase blood triglycerides, and induce insulin resistance. Keep in mind fruit generally contains 6-7 gms of fructose. That means it would take a bunch of fruit to get 50gms of fructose. The high consumption of fructose seen in most studies is generally due to the consumption of high levels of high fructose corn syrup (processing where varying portions of glucose are converted to fructose). Another consideration is fructose causes minimal insulin secretion. Even if fructose consumption was high enough to elevate fat synthesis lack of insulin would probably result in increased fat oxidation. Assuming calorie deficit it probably all evens itself out at the end of the day. Eat fruit it's nutritious and generally low in calories.
Bodybuilders have forgotten the meaning of supplementation. It means supplement the training and nutrition regimen. Be sure your training and nutrition are efficient before spending hundreds of dollars on supplements. Some supplements are beneficial and more convenient than fixing food all the time. They (very few) have a role in physique and performance enhancement when used in the appropriate manner.
A Aragon: The bodybuilding population as a whole is carbophobic. And I’m talking about carbs in all forms. Don’t get me wrong, in the event that calories must be reduced, or reduced to a heightened degree such as pre-contest, its plain stupid to incur a protein deficiency. But in general, bodybuilders are just plain afraid of carbs. Hell, only a small percentage of bodybuilders are up on the science of the matter, so the rest are victims of the asinine mass media just like every other layperson. Would it alarm you to know that the majority of “serious” recreational and competitive bodybuilders are literally afraid to have carbs in their final meal? Imagine that, they’re mortally afraid of muscle loss while simultaneously being afraid of a key tactic that can enhance lean mass preservation. True story.
On those same lines, you have the carbophobes who have a mortal fear of insulin, yet megadose highly insulinogenic BCAA during training. Oh, no glucose generated there, none at all, hah… What a lot of folks don’t realize is that BCAA is approximately twice as insulinogenic as a solution of pure glucose.
On those same lines, you have folks who are stuck on acute substrate utilization during training. I was talking to a friend of mine Alwyn Cosgrove the other day (Braveheart is still a cool movie even though Mel lost it), and the following realization dawned on me as a matter of what we discussed:
Caring about how much fat is burned during cardio makes as much sense as caring about how much muscle is built during weight training.
I recently had a rather public debate, and by all counts absolutely destroyed my opponent’s argument that fasted cardio was across the board better for fat loss than fed cardio. He was focused on acute effect (during & shortly after exercise), not long-term effect, or anything close to the research blatantly refuting his stance. More reading on the subject of “fat burning” cardio can be found here:
Articles - AlanAragon.com
This brings me to another rant.. Folks with any intention to use being published in peer-reviewed journals as some sort of credibility crutch have another thing coming. People of sound mind don’t give half a rat’s ass where someone’s been published. We don’t care what degrees you have, we don’t care how many hours you’ve spent in a classroom listening to the drone of professors who have never driven near the gym. I can tell within 5 sentences whether someone is worth listening to or not. Paper credentials are fine and dandy, but they mean nothing compared to the ability to reason, comprehend, and synthesize ideas and information. In the realm of bodybuilding, academic degrees also must take yield to experience using these abilities firsthand either on yourself and/or in working with clients – that’s the most relevant “lab”, as far as I’m concerned.
This brings me to the duality of scientific research. We as “thinking” bodybuilders rely on research to mold our beliefs, support our stance on controversial issues, and ultimately, dictate our protocols. Science indeed is infinitely more reliable than random opinions of buff dudes with hyooge byceptz & rippt abz. But unfortunately, even science is puppeteered by money and politics. For example, whoever pays for the study is gonna get the results they want. That’s brutal but true. The best we can do in any given debate is see whether controlled research over time is able to produce counter-results from the opposition(which hasn’t yet occurred in the case of the anti-milk camp, HAH!), or whether relatively non-vested replication and further validation ensues. It goes without saying that all research must be scrutinized for strengths and weaknesses.
Which brings me to another rant… I can’t stand it when anyone picks a stance and makes a bulletproof commitment to it, turning a blind eye to any opposing data, regardless of its legitimacy. A lot of guys in this industry seriously handicap themselves by assuming a singular position that they feel defines them. This is something we’re all guilty of from time to time, and it definitely impedes the growth of wisdom.
There’s more, perhaps we could cover them in another segment