Refining Genetic Instruments for Dietary Intake Mendelian Randomization Using Phenome‐Wide Association Studies
ABSTRACT Most Mendelian randomization (MR) of dietary intake use the full set of genome‐wide significant (GWS) variants in the instrumental variable (IV), likely biasing causal estimates due to pleiotropy. To characterize the common methods to handle pleiotropy in dietary intake MR, we conducted a scoping review of the...