@article {8536,
	title = {{Dairy Consumption and Body Mass Index Among Adults: Mendelian Randomization Analysis of 184802 Individuals from 25 Studies},
	journal = {Clin Chem},
	volume = {64},
	year = {2018},
	month = {01},
	pages = {183{\textendash}191},
	abstract = {Associations between dairy intake and body mass index (BMI) have been inconsistently observed in epidemiological studies, and the causal relationship remains ill defined.\ We performed Mendelian randomization (MR) analysis using an established dairy intake-associated genetic polymorphism located upstream of the lactase gene (LCT-13910 C/T, rs4988235) as an instrumental variable (IV). Linear regression models were fitted to analyze associations between (a) dairy intake and BMI, (b) rs4988235 and dairy intake, and (c) rs4988235 and BMI in each study. The causal effect of dairy intake on BMI was quantified by IV estimators among 184802 participants from 25 studies.\ Higher dairy intake was associated with higher BMI ({\^I}{\texttwosuperior} = 0.03 kg/m2 per serving/day; 95\% CI, 0.00-0.06; P = 0.04), whereas the LCT genotype with 1 or 2 T allele was significantly associated with 0.20 (95\% CI, 0.14-0.25) serving/day higher dairy intake (P = 3.15 {\~A}{\textemdash} 10-12) and 0.12 (95\% CI, 0.06-0.17) kg/m2 higher BMI (P = 2.11 {\~A}{\textemdash} 10-5). MR analysis showed that the genetically determined higher dairy intake was significantly associated with higher BMI ({\^I}{\texttwosuperior} = 0.60 kg/m2 per serving/day; 95\% CI, 0.27-0.92; P = 3.0 {\~A}{\textemdash} 10-4).\ The present study provides strong evidence to support a causal effect of higher dairy intake on increased BMI among adults.},
	author = {Huang, T. and Ding, M. and Bergholdt, H. K. M. and Wang, T. and Heianza, Y. and Sun, D. and Frazier-Wood, A. C. and Aslibekyan, S. and North, K. E. and Voortman, T. and Graff, M. and Smith, C. E. and Lai, C. Q. and Varbo, A. and Lemaitre, R. N. and de Jonge, M. E. A. L. and Fumeron, F. and Corella, D. and Wang, C. A. and Tj?nneland, A. and Overvad, K. and S?rensen, T. I. A. and Feitosa, M. F. and Wojczynski, M. K. and K?h?nen, M. and Renstr?m, F. and Psaty, B. M. and Siscovick, D. S. and Barroso, I. and Johansson, I. and Hernandez, D. and Ferrucci, L. and Bandinelli, S. and Linneberg, A. and Zillikens, M. C. and Sandholt, C. H. and Pedersen, O. and Hansen, T. and Schulz, C. A. and Sonestedt, E. and Orho-Melander, M. and Chen, T. A. and Rotter, J. I. and Allison, M. A. and Rich, S. S. and Sorl?, J. V. and Coltell, O. and Pennell, C. E. and Eastwood, P. and Hofman, A. and Uitterlinden, A. G. and van Rooij, F. J. A. and Chu, A. Y. and Rose, L. M. and Ridker, P. M. and Viikari, J. and Raitakari, O. and Lehtim?ki, T. and Mikkil?, V. and Willett, W. C. and Wang, Y. and Tucker, K. L. and Ordovas, J. M. and Kilpel?inen, T. O. and Province, M. A. and Franks, P. W. and Arnett, D. K. and Tanaka, T. and Toft, U. and Ericson, U. and Franco, O. H. and Mozaffarian, D. and Hu, F. B. and Chasman, D. I. and Nordestgaard, B. G. and Ellervik, C. and Qi, L.}
}
