you sorta need both, one lubricates the other gels since its fiber, as i mentioned before i would use ground flax seeds and fish oil capsules, not flax oil, since the fish oil is beneficial to every other part of your body as well and is super for inflammation, brain function, preventing arthritis, etc, so for most bang use fish oil capsules and ground flax seeds. you want 1000mg of fish oil and 2-4tbsp (build up till you get desired results) of flax seed per day