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Does higher childhood IQ increase the likelihood of becoming a vegetarian later in life? Investigators analyzed data from a 1970 British birth cohort study of participants who had undergone IQ assessment at age 10 and then provided information on vegetarian status at age 30.
Of the 8170 men and women, 366 (4.5%) were self-reported vegetarians (but 34% reported that they ate fish or chicken). Vegetarians were more likely to be women, to be in a higher social class in childhood and adulthood, and to have attained higher academic or vocational qualifications than non-vegetarians. Higher IQ at age 10 was significantly associated with an increased likelihood of being vegetarian at age 30, even after adjustment for social class in childhood and ad…