Here's what most people miss about eye health.
Your body relies on specific nutrients to keep that oil layer intact. Without them, the layer thins, tears evaporate faster, and no amount of drops will fix it.
One of the most researched nutrients in this area is omega-3 fatty acids — particularly EPA and DHA.
Your eyelids contain tiny glands that produce that protective oil layer — and EPA and DHA are the specific raw materials your body uses to keep them working properly. That's why omega-3s keep showing up in dry eye research — not as a general "eye health" nutrient, but because they support the exact layer that's breaking down.
But here's where things get interesting.
At this point, a lot of people think: "Okay — I'll just grab any fish oil from the store."
And that's usually where things fall apart.
Because not all omega-3 supplements are created equal — not even close.
Most over-the-counter fish oils contain relatively low amounts of EPA and DHA, often far below the levels used in research on eye comfort. On top of that, some forms are less efficiently absorbed, meaning your body may not be getting the full benefit even if you take them consistently.
So when someone says, "I tried fish oil and didn't notice anything," it's often not because omega-3s don't work…
It's because they weren't getting the right type — or enough of it — to make a meaningful difference.
It's not just about taking omega-3s — it's about taking the right kind, in the right amount.
And this is exactly where most generic supplements fall short.