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At least it's getting studied. Most fitness supplements are total garbage advertised by equally garbage people trying to make money risking other people's health.

The paper pretty much says fish oil + exercise does not increase performance ("inconclusive") and some evidence for improved fat loss. Many of the studies reviewed by the paper show evidence that heart rate is lower during "submaximal" exertion.

GP links to a list of "certified" fish oil sources, so if you wanted to at minimum test for yourself, you could just pick one from the list before you pursue your fish oil PhD.

From my reading it seems like a rare few people experience major benefits. Furthermore in some cases it's almost certainly placebo. Although I think certain fads like keto do have some real physical effect, but only for people with rare-ish metabolic or autoimmune disorders.

Most people experience minor if any benefit from these things. The things which really cause benefits are healthy eating and exercise in general. If you go from eating fast food and barely walking to eating whole foods and deliberately exercising 5-7 days a week, you'll almost certainly feel a major difference. What exactly caused that difference, where you crossed the line, is unclear; but it doesn't matter, IMO people should eat well and exercise reasonably anyways.

"It usually descends into absurdities where you are supposed to find this rare unicorn brand that has the proper quality (for now, who knows next year!) then dose it at some exact time before bed time, but avoiding calcium or citric acid or something because that would nullify it etc etc."

The body is a complex system. Just because our minds prefer simplicity doesn't mean our bodies will respond simply. People that are into the minutiae of nutrition and supplementation are obviously willing to do their homework to get the benefits.

"Supposing the supplement even ever worked, it simply is not practically useful with such constraints. I'm not going to get a PHD in fish oil quality in order to achieve some single digit risk reduction of heart disease."

Nobody is asking you to do anything. We live in a society where most foods are fairly processed, most supplements are bogus, most claims are BS, etc. There's an overwhelming amount of data on the benefits of Omega-3s now, and to get the benefits you need to actually take quality Omega-3s. Rancid fish oil won't give much benefit, and most fish oil is likely shit. The supplements industry isn't regulated like medicine.

It has to be only turmeric grown above 5000 ft elevation.

I have a couple of decades on you and 100% agree with you, and I've noticed the exact same thing.

I just saw an article written somewhere today that there's a pill being created so that we don't have to exercise anymore. Just buy the pill and that's good. I'm going to do that one!

> I'm not going to get a PHD in fish oil quality in order to achieve some single digit risk reduction of heart disease.

You don't need a PhD, just read the amazon reviews for different brands.

It's difficult to imagine a less reliable information source than amazon reviews for unregulated dietary supplements.

The typical Amazon reviewer is unqualified to differentiate between shipping delays and product quality. No way I can have any expectations for subtle health changes.

Plus amazon like everything else entices users into leaving reviews...reviews should be for when someone actually has something to say, not feeling like you have to say something

I do not trust reviews anymore, they get gamed to a large degree.

This is an excellent answer and should be applied to more life scenarios.

"This faculty position requires a Ph D."

"I don't have that, but I read Amazon reviews for different brands."