The broader significance is that fish oil was considered one of the most well supported supplements out there. Others like turmeric are less evidenced but maybe

The broader significance is that fish oil was considered one of the most well supported supplements out there. Others like turmeric are less evidenced but maybe promising, and there's stuff like colloidal silver which is homeopathy nonsense. If fish oil does nothing for large swaths of the population, what do we really know about the efficacy of any supplements?