Practically useless. U need to consume large amounts of it to start seeing clinical effects. For me its a placebo at best.

Japan now formulating more potent fish oil that can produce a greater and clinically significant effect.

Anyway, your money your call.

source and extraction method can determine the production cost of the fish oil, which in turn dictate the price of the fish oil.

For better result, use Incha oil, unker switch to this oil oredi, result is better because it is plant based. Cheaper than fish oil summore.