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Short answer Glutamate cannot enter the brain due to the blood-brain-barrier. Background You are totally right that glutamate represents the principal excitatory neurotransmitter in the brain (Meldrum, 2000). However, glutamate is a regular amino acid and will be metabolized quickly. More importantly, the blood-brain barrier is extremely effective in ...


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There is no strong evidence for MSG having any kind of neurotoxic/neuromodulatory effect. However, A 2010 article says that, in a double blind trial, it was found that the people who consumed MSG containing soda, reported headache in significantly more numbers compared to the placebo subjects [1]. The concentration of MSG used in this study was 75-150 ...


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First of all, you assumed that this tortilla went bad after 18 month, not that austranaughts just decided to eat it? More importantly, there is thing called anaerobs. Just like your muscle don't use oxygen in times of acute stress (force requirement), so there are organisms that don't care much about oxygen. As it happens in muscle, it happens in yeast ...



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