He was the Holy Grail of biomed treatments, the so-called Super Responder. One week (one!) after Elizabeth removed food dyes, Henry’s rocking went from an average of twenty-five to six episodes per day. Two weeks after starting zinc, he started making eye contact—fleeting and sporadic, but compared with none and never, a breakthrough. And the month after she added B12 shots, his MLU (mean length of utterance) doubled, from 1.6 to 3.3 words.
