[quote]Atomic Dog wrote:
Yes, chocolate milk is better than nothing, and whey protein plus chocolate milk is better than just chocolate milk, but let’s not forget the original research that the Surge formulation was based on.
The ratio of nutrients and the inclusion of branched chains seems to be very important.
From the original Surge article:
The final piece of the post-workout puzzle is the management of protein synthesis. And although this area is a little more complex than managing protein breakdown, there are three key ingredients to increasing protein synthesis immediately after workouts:
- A proper ratio of BCAAs
- High blood levels of essential amino acids
- High blood levels of insulin
Based on the research, it appears that the amount of protein intake has very little to do with pushing protein synthesis up after workouts. And in fact, too much could be counter productive (more on this later).
More important to increasing protein synthesis after workouts is the ability to rapidly deliver the right type of protein or, more correctly, the right type of amino acids. In a paper published last February, researchers discussed rates of protein synthesis during several conditions (7):
- After weight training with high amino acids in the blood and high insulin in the blood, protein synthesis increase by over 400% vs. normal post-workout amino acid and insulin levels (7).
The most interesting thing was that in the last condition, the post-workout beverage only contained 6 g of protein and 36 g of carbohydrate.
As long as insulin was high and correct amounts of essential amino acids and BCAAs were present, protein synthesis got jacked after the workout.
Several other studies have shown that either infused or orally administered post-workout amino acids are able to rapidly increase protein synthesis as well as rapidly create a positive muscle protein balance after training (24, 25).
Interestingly, it seems that non-essential amino acids are not required for this process and that if only essential amino acids are supplied, there’s no difference in the increases in protein synthesis (7, 26).
You may be asking yourself why too much protein could be counterproductive. Well, a very high protein meal can actually cause a release of glucagon. Glucagon is a hormone that antagonizes insulin release. So if you eat some protein with carbs, insulin shoots up. If you eat too much protein with carbs, the insulin release may actually be lower.
And if this weren’t bad enough, glucagon also has another function that we want to avoid. The darn stuff causes the body to convert amino acids into glucose (a process called gluconeogenesis). So take in too much protein and say goodbye to that special amino acid ratio. Instead those aminos become carbs!
Let’s get back to the amino acids. In addition to the requirement for rapidly delivered essential amino acids, BCAAs seem to play a big role in the recovery and increase of protein synthesis after a workout (2,7).
Unpublished data presented at the 2000 Canadian Society for Exercise Physiology Meeting shed light on the importance of BCAAs in recovery (2). In endurance athletes, post workout protein synthesis rates will drop by about 30% for up to 6 hours after a training bout. Providing carbohydrates to these athletes, while favorable for increasing muscle glycogen stores, has no ability to increase protein synthesis.
However, a drink providing only the BCAA leucine was able to promote full recovery of post-workout protein synthesis levels to pre-training values. In addition, by adding carbohydrate to the beverage, protein synthesis was higher after the workout than before the workout. Since this beverage increased blood insulin levels, the author of the study concluded that insulin indeed had a synergistic effect with leucine on protein synthesis.
The results of this study and others have lead researchers to believe that within the muscle cell, there’s one particular regulatory pathway for protein synthesis that’s stimulated by insulin, but dependent on leucine (27). If insulin is present and leucine isn’t, then protein synthesis can’t maximally be stimulated. If leucine is present and insulin isn’t, protein synthesis can’t be maximally stimulated. But give 'em both and look out!
So what’s the best way to rapidly increase protein synthesis after a workout? It seems that the 0.4g/kg of protein hydrolysate plus 0.8g/kg of glucose/glucose polymer plus insulin-stimulating amino acids takes care of the insulin angle. But remember, insulin isn’t enough. Providing BCAAs in an ideal ratio is the second part in rapidly stimulating protein synthesis.
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You mean you just can’t go to the candy store and suck down some lifesavers with Chocolate milk and get the same effect? LOL
Like I stated earlier in the thread: “You get what you pay for!”