Gaba

rhoadx

Member
Looking for someone more knowledgeable about this. I know supplemental gaba doesn't cross the bbb, but on the rare occasion I take it, I get amazing sleep. My question is how exactly does supplemental gaba (or does it) work if it doesn't cross the bbb?
 
Yes, there is debate over whether or not GABA crosses the BBB - but it appears that large doses (whatever dose that is) can cause GABA to cross the BBB. It also seems to me that, from personal experience, it works for improving sleep. From researching online, it appears that many others agree that they see improved sleep with it.

So, I guess, a few things could be going on.

1. We could be wrong - it does somehow cross the BBB.

2. Maybe taking it exogenously is "sparing" in that it can still be used throughout the body, which means you can use more of your endogenous GABA in your brain.

3. Maybe just the fact that it relaxes your body, even though it isn't acting directly on your brain, sends the signal to your brain that you are relaxing/sleeping. Your body does interact with your brain of course, and if GABA can shut down nerve impulses in your body, your brain should follow.

4. Maybe a combination of the above, all of the above or none of the above.
 
I definitely notice a difference when I take it. Have you ever used phenibut?

Phenibut is WAY stronger. I'm using APS Revivarant G right now with Phenibut, GABA and GABOD - I have found that 1/4 - 1/3 scoop is great for some really good sleep.
 
Phenibut is WAY stronger. I'm using APS Revivarant G right now with Phenibut, GABA and GABOD - I have found that 1/4 - 1/3 scoop is great for some really good sleep.

Agree 100% on the phenibut. Just watch out for tolerance. Also, 1g and above is said to be hard on the kidneys.
 
Agree 100% on the phenibut. Just watch out for tolerance. Also, 1g and above is said to be hard on the kidneys.

and make SURE YOU CYCLE on and off with phen- 2-3 days on 4 days off. tolerance as KB said will build up and this can become additive
 
Yes, there is debate over whether or not GABA crosses the BBB - but it appears that large doses (whatever dose that is) can cause GABA to cross the BBB. It also seems to me that, from personal experience, it works for improving sleep. From researching online, it appears that many others agree that they see improved sleep with it.

So, I guess, a few things could be going on.

1. We could be wrong - it does somehow cross the BBB.

2. Maybe taking it exogenously is "sparing" in that it can still be used throughout the body, which means you can use more of your endogenous GABA in your brain.

3. Maybe just the fact that it relaxes your body, even though it isn't acting directly on your brain, sends the signal to your brain that you are relaxing/sleeping. Your body does interact with your brain of course, and if GABA can shut down nerve impulses in your body, your brain should follow.

4. Maybe a combination of the above, all of the above or none of the above.

pretty much on point here hit-

also, some studies show that that manganese can also facilitate GABA supplements crossing the BBB. What is also interesting is the activation of vitamin B6 and how it is a key to synthesize GABA.

The brain removes excessive amounts of it at roughly 16 times the uptake rate. So regardless of whether or not it crosses the BBB, the brain is breaking down GABA too quickly for researchers to observe any significant difference in the levels.

Most of the research on GABA supplements and the BBB is conflicting. GABA supplements are most likely broken down by the brain due to excessive amounts and, therefore, may not directly influence neural activity in the central nervous system.
 
Looking for someone more knowledgeable about this. I know supplemental gaba doesn't cross the bbb, but on the rare occasion I take it, I get amazing sleep. My question is how exactly does supplemental gaba (or does it) work if it doesn't cross the bbb?
Used it and noticed nothing from it. It's in the ever growing bucket of "useless supps" in my basement now.
 
My heart rate doubles from resting when I dose above a gram at a time. No other effects for me but I got the shortness of breath in the beginning.
 
Back when doing some heavy ph cycles a few years ago I got terrible anxiety which was greatly helped by gaba
 
I actually get better sleep off Growth Factor XT(with gaba ) than Phenibut XT

Same. More restful sleep anyways, Phenibut is useful tho for getting to sleep after a stressful day. Takes the edge off which I appreciate.
 
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