IQ in childhood and vegetarianism in adulthood: 1970 British cohort study In this study of 8,170 men and women aged 30, 4.5 per cent of participants said they were vegetarian, although 33.6 per cent admitted eating fish or chicken. Higher IQ at the age of ten was associated with an increased likelihood of being vegetarian at age 30. IQ remained a statistically significant predictor of being vegetarian as an adult after adjustment for social class, academic or vocational qualifications, and sex. Gale, C et al. BMJ Online First, 15 Dec 2006. Abstract: http://www.bmj.com
Gale, C et al. BMJ Online First, 15 Dec 2006. Abstract: http://www.bmj.com
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