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I am incredibly sensitive to some supplements, particularly those connected to neurotransmitters (such as BCAA)... they make me feel good, but overstimulate me, and cause significant acne, etc. I wonder if BBB permeability could also be connected to this...

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May I ask what was the name of the BBB test you used? Thanks so much.

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I took the Array 20 test from Cyrex Labs. I took that at the same time I did the GI 360 test, which looks at gut barrier permeability and the microbiome. I will retake these tests in the future. Since beginning this process, new studies came out showing that disruption of the central nervous system can lead to leaky gut and leaky brain. There seems to be a causal link between the two.

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Cheers, thank you... and I appreciate your blog.

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