Question: Is it safe to eat hair?, Answer:Yes, Description of Hair: protein filament that grows from follicles found in the dermis, or skin, Fact1: Hair is made of keratin., Fact2: Food manufacturers use L-cysteine as a food additive., Fact3: L-cysteine is made from keratin.
Step1: What is hair made of?, Step2: What else is made from #1?, Step3: Are any of #2 used in food production?, Wikipedia page for step 1: Human hair, Wikipedia page for step 2: Keratin, Wikipedia page for step 3: L-cysteine, not_definitive_answer: False, incorrect_answer: False