Should we eat fish or not to get omega-3?
In a recent study of 184 countries, researchers found that 85% of them are omega-3 deficient, which is linked to rising rates of cardiovascular disease, depression, preterm birth, and neurological decline (PMID: 40520676). That's an ALARMING statistic. But it gets more complicated… The lead researcher concluded that our current food systems are not providing enough UNCONTAMINATED omega-3. I’ve been saying this for years now, and there is no more debating this… Our fish supply is compromised, possibly beyond repair. To most people, that would present a conundrum… Because the logical solution - eat more fish - is the problem. Fish today is heavily contaminated with microplastics and heavy metals (PMID: 30116998). Things like cadmium, mercury, arsenic, and lead, which accumulate as fish age and bioaccumulate up the food chain… Once upon a time, I thought smaller fish like wild salmon or sardines were ok to consume regularly. But I have seen far too many cases of heavy metal accumulation from even these smaller fish to continue thinking this is a good idea. Sadly, too, as bottom dwellers, shellfish also accumulate heavy metals and toxins. Huge bummer for me because I used to LOVE scallops and lobster, but I don't consume these anymore for this reason. So what about fish oil supplements to meet our daily omega-3 requirements? Fish oil is FRAGILE. Putting it in capsules - or worse, liquid form - is a sure way to get it to oxidize. You can't always tell when oils are rancid, but if you've ever experienced those nasty fish burps… that's usually a strong indicator. Unfortunately, it’s a rampant issue in the industry… A 2023 study testing 72 of the most popular fish oil supplements on the market found that 68% of flavored products exceeded acceptable oxidation limits - with flavoring added specifically to mask the rancid taste (PMID: 37712532). So what is the solution? Today's industrialized diets contain roughly 20 TIMES more omega-6s than omega-3s. Historically, that ratio was approximately equal.