Assertion: glutamic acid | /r/CapableOf | serve as neurotransmitter
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text: Glutamic acid serves as a neurotransmitter vital to the transmission of nerve impulses, but apparently it also functions as a neurotoxin, causing neuron degeneration and cell death which I understand is linked to its "overstimulation" of these neurons - itself a main reason for the controversy surrounding the use of monosodium glutamate which unnaturally elevates free glutamate levels in the body.