T Nation

Article: Protein Pulsing for Natural Bodybuilders


#1

" (…)So you either need periods of higher protein intake preceded and followed by periods of a lower intake to create that spiking effect(…)"

How long should a period with lower intake last?
Should there be meals without protein (when you eat every 3-4 hours) or does this mean that you shouldn’t drink bcaa throughout the day?

Will some leucine before every meal boost the spiking effect?


#2

No, but it will help increase mTor activation prior to the meal (consume it 15 min before) which might theoretically increase protein synthesis/muscle building from that meal.


#3

Is there a reason why one would supplement leucine as opposed to glutamine or lysine? Curious as to the differences.


#4

Leucine and glycine are the amino acids that have the greatest impact on mTor activation. mTor is the trigger than initiate protein synthesis/muscle building.

Glycine could also be used but its a neural inhibitor. Which is good in the evening because it helps you relax by reducing neuronal activity, but a bad idea during the day.

Glutamine doesn’t have a significant impact on mTor. It can be turned into glucose fairly easily so people on a low carbs diet can use it post workout to increase glycogen replenishment. It can also have a small impact on the immune system but its most important effect is on gut health and in reducing the acid load of a meal.

Personally I see no benefit of glutamine from a muscle-building or performance standpoint but it can have a small health benefit.

I see lysine a bit like glutamine… very little impact by itself on muscle building but might have small health benefits.

I never recommended supplementing with lysine, and have use glutamine only in some specific cases (gut issues, when immune system is weak).


#5

Guess that means I should get some leucine then. Good to know.


#6

You don’t have to. Honestly its great in theory. And I’ve talked about it in the past. But I doubt that it amounts to a real significant different if your protein intake is high.

Heck, recent studies have shown that if you protein intake is high BCAAs have no added benefits.

I like glycine post workout to help bring the CNS down to reduce stress after a workout while having the mTor activation benefit