Hi, im looking for something to put a little bit of condition on my mare, but mainly just to improve the condition of her coat. I've bought a broad spec feed balancer for nutrients but someone recommended flax seeds. I read up on them and there seems to be confusion on how to feed them?

ive heard ground, bioled, rinsed.... I just want to know the safest and easiest way to feed it, or any alternative oils like sunflower seed or corn. Any additional info on these oils/seeds would be soooo helpful!
Thanks in advance guys!!! XD