Hair loss is on both side of my family, so I’m assuming I won’t escape it, but what can I do to best prevent it if I have already noticed a slight thinning at the age of 19? Does flaxseed oil actually help prevent hair loss? What steps have shown the most success?
Short of removing your testicles, there is no way to completely prevent your genetics from unfolding. If you are concerned, get your hair mapped out for miniaturization yearly and you will be able to catch it early enough to treat it more effectively with drugs like Propecia (finasteride).
You can read all about flaxseed oil (see the comments toward the bottom) here.