Assertion: aspartame's phenylalanine | /r/HasProperty | concentrated in fetal brains
Facets:
value: to a potentially neurotoxic level
type: OTHER
Source sentences:
text: They are especially concerned that the phenylalanine can be concentrated in fetal brains to a potentially neurotoxic level. ,  Other scientists believe that rise in blood plasma phenylalanine is negligable in typical use of aspartame  and their studies show no significant effects on neurotransmitter levels in the brain or changes in seizure threshholds.
text: "They are especially concerned that the phenylalanine can be concentrated in fetal brains to a potentially neurotoxic level." ,  Verify at: