Arthur Eidelman deconstructs the latest breastfeeding-and-IQ study

"Thus, extrapolating from trajectory data to absolute levels of IQ and concluding that breastfeeding has no impact on IQ is just plain wrong (let alone ignoring the wealth of articles in literature that support the conclusion that breastfeeding does increase IQ : see the most recent review: Effects of Breastfeeding on Obesity and Intelligence: Causal Insights From Different Study Designs. Smithers LG, Kramer MS, Lynch JW. JAMA Pediatr. 2015 Aug)"