s between the groups that would <em>confound</em> the treatment effect; however, we still can’t be certain because sometimes randomization yields treatment versus control groups that <em>do</em> vary in some important way. Researchers often try to address these confounds using statistical analyses, but removing the influence of a confound from the data can be very difficult.</p>
<p>A number of RCTs have examined the question of whether changing saturated fat intake results in better health and longer life