No one ever mentions omega 3 fatty acids grow hair, but this is the experience I had with it: I tried a remedy that is supposed to help stop post-nasal drip: start with 1 fish oil capsule the first day. Then take 2 on the 2nd day, increasing by one capsule per day until you get to day 7, when you’re taking 7 capsules. Stay at 7 capsules until you get to day 30. That’s the suggestion. No, it's not something that I heard from a doctor, and I wouldn't try it again, since fish oil can thin one's blood.
It did nothing to help my post-nasal drip, but a month later, I noticed a bunch of fuzzy short hair coming in that didn’t used to be there. It was particularly noticeable in the front of my head, which has less hair than the back half of my head. I’ve been pretty good about keeping up with taking fish oil capsules and that hair has grown in to be the real deal.
Meanwhile, I’d told my mother about the post-nasal drip protocol I’d been trying and she tried it out too. It also did absolutely nothing for her post-nasal drip, but about a month after she finished, she called up and said the same thing had happened to her hair: she was suddenly sprouting baby-fine new hair where only the shortest down had been before.
I’m not vouching for the safety of taking that much omega 3 at all– be sure to check with your doctor if you’re thinking of trying it! Adding in a reasonable daily amount of omega 3 sounds much better. Here's what I suggest: make sure you’re getting enough omega 3 in your diet, since it could add to your hair’s fullness over time. That's the healthy way to do it.