Funded by the Institute for Scientific Information on Coffee (ISIC) — an industry body — which is a notable conflict of interest the authors disclose but don't extensively discuss
The first paragraph of the introduction touts all the health benefits of coffee.
I don't necessarily deny these benefits but it feels weird for a scientific paper to hedge its bets like this.
> Moderate coffee consumption is associated with various health benefits, including reduced risks of type 2 diabetes, liver disease, cardiovascular diseases, and cancer3. In a large cross-sectional study of 468,629 individuals without clinical cardiovascular disease, light-to-moderate coffee consumption was linked to lower rates of all-cause mortality, cardiovascular mortality, and stroke incidence4. Furthermore, coffee intake is consistently associated with a reduced risk of Parkinson’s disease in a dose-dependent manner, across multiple human cohorts5,6,7. Meta-analyses have also found that coffee consumers face a lower risk of depression8,9, and one meta-analysis of cohort studies examining cognitive decline, showed that coffee consumption accounted for a 27% reduction in the incidence of Alzheimer’s disease
It's like they're starting off with "Now don't get me wrong. Coffee will cure cancer, but..."
Ah yes, yet another in the long line of results which confirm our suspicion of water being wet to have been right all along. In this case it's something that anyone who has spent a significant amount of time around routine coffee drinkers and regularly consumed it themselves already took for granted.
It'd be nice if the gov't could do it. Or at least enforced some regulation so that a study is forced to preprint so we at least know when a study was attempted but didn't end up publishing the results
Ultimately these industry-funded studies are still gov't funded as well. They are "public-private partnerships" but it's stupid how we don't talk about the fact that usually the majority of the grants come from the gov't. Even when a study is mostly funded by the industry it's relying on utilize existing infrastructure or early-stage research initiated by government funds.
Behaviourally, coffee drinkers exhibited greater impulsivity and emotional reactivity, whereas non-coffee drinkers demonstrated better memory performance.