I would only buy a carb free version. But if that’s the still the plan for launch I’m definitely grabbing a few tubs instead of triple-scooping Xtend
Great! But keep in mind that even if you triple-scooped Extend, it still wouldn't compare...because the amino acid ratio would be really bad with 3 servings combined. You see, most EAA product put optimal doses of leucine (or close to it) in a single serving, along with too much of the other two BCAAs relative to the other EAAs. So, when you double or triple up the dose, you end up with way to much leucine (most of which is completely wasted), along with an overall amino acid ratio which is way off. Basically, the more servings you combine, the worse the ratio gets and the more aminos you waste.
With PS-17, the ratio has been tailored for maximum efficiency (the proper ratio for muscle growth in humans), so that your body can actually use all the aminos for growth. The only amino acid which has been dosed a bit higher than what is required for efficiency, is leucine. You see, the body requires leucine and lysine in roughly the same ratio. In a 25 gram gram serving of EAAs, this would normally be about 4 grams each. However, we know that leucine is the primary signaling amino (i.e.. stimulates protein synthesis) and that the body requires about 5 grams to maximize this signal. However, this is only true when no other EAAs are present. When other EAAs are added to the mix, leucine absorption is somewhat impaired, thereby requiring us to take a bit more in order to compensate for this. This is why you will see 6.5 grams of leucine in PS-17, rather than 5grams.
Aside from leucine, every other EAA is dosed for maximum efficiency. By doing this, you are able to maximize the protein synthesis signal...and provide the body with a ton of building blocks (the other 8 EAAs), all of which can be used for growth. Science also shows that 25 grams of EAAs provides more robust anabolic and anticatabolic response than lower doses EAAs, so you really get the best of both worlds--more growth, more quickly.