flax seed

I keep hearing guys mentioning you need flax seed in your diet, I don’t understand why. Is it because it is high in fiber or is it good fats? Has that anything to do with bodybuilder type diets which lack this type of thing or is it just something you all use out of it being easy to use. I’m...

I hear a lot of guys talking about flax seed oil, vitamin b6,b12, etc. Im going to run a prop/tren/winn cycle soon, What types of vitamins should i be taking while on this cycle?