sentences:  Other studies have failed to replicate any correlation between the "FADS2" gene, breastfeeding and IQ, while others show a negative effect on IQ when combining bottled feeding, and the "G" version of "FADS2".Two studies in Chile on 18-year-old high-school graduates found that nutritional status during the first year of life affected IQ, scholastic achievement, and brain volume.Micronutrient deficiencies (e.g.