[quote]ksommer wrote:
My comment on protein intake was that the TEF of 70g of protein does not count for over 300 calories difference nor the difference in fat loss - the increase impacted hormones another way, which is what I have been saying all along.
On the topic of calorie partitioning…
Some of your favorite authors (read: Lyle) have written about this before. There are a couple of hormones that determine this, but from my understanding, it is mainly testosterone, insulin, cortisol, and leptin with regards to where calories are stored (in terms of muscle to fat ratio). We know these hormones exist. We also know that some people have more or less of them, and are more or less sensitive to them.
Think about it for a moment. Any endocrinologist will tell you that insulin and cortisol are opposing hormones - their release blunts the effect of the other. E.g. when your blood sugar goes too low from too much insulin, cortisol is raised to improve blood sugar by breaking down tissue. This is simple physiology - correct me if that is not true. Many authors write about the cortisol blunting effect of the PWO shake, which is one reason why it works so well for many of us. This is nothing new.
However, in a fat guy who is insulin resistant in the muscle tissue, the calories from those carbohydrates are less likely to go where you want them to, even though you are more sensitive post workout. Thus you will have the theory behind the high-dose glutamine/glycine shake with no carbohydrate. I can’t explain how it works because I honestly do not know, but I have seen it used with success - whether or not that means anything to anyone on this particular forum is another story. More and more authors are writing about this shake if you are paying attention…
We also know that testosterone affects calorie partitioning through androgen receptors on muscle cells. A good thing to happen is testosterone binding to androgen receptors instead of things like SHBG (caused by a myriad of things). Well, guess what? Most of your hormones are made from the same raw material (at least a lot of the major ones are). Using diet, supplementation, and lifestyle to change the ratio and sensitivity is the goal - and it works. Maybe not for you or everyone, but I have had success and so have many others.
Overall, it is overly simplistic to say calories do or do not matter, or that hormonal manipulation does or does not matter. Neither one will ever be the only determinant. [/quote]
Thanks for your explanation ksommer. I wonder how extensively one can manipulate their hormones to elicit a positive body composition change? You can control certain hormones through lifestyle. for instance, cortisol can be kept in check somewhat. Insulin can also be controlled somewhat. But what about testosterone? Beyond eating egg yolks to supply cholesterol, as raw material for all the steroid hormones. I know you can synthesis it in the liver and a few other places, btw. It always seemed counter intuitive to me to slam a highly insulogenic shake right after lifting, if you’re trying to lose fat.
I always thought it was a good idea to do a little bit of cardio to continue to burn fatty acids liberated from lifting. I do agree though that while dieting slamming some nutrients right after training is a good idea. About the glycine/glutamine, I know there are studies out there showing positive benefits to both, but for someone who can’t afford a steady supply it seems that just drinking a protein shake would do the trick. Insulin would spike which would help with protein synthesis and inhibit cortisol. I also would think that regardless of how insulin resistant someone is that a hard session of lifting would temporailly improve muscle’s insulin sensitivity enough for glucose to transported into the cell by the glut4’s, making carbs post workout a valuable aid. I don’t have any evidence to support this, I’ll look for some.