I only use olive oil or algal oil, and noticed a significant improvement after the switch.

I deliberately tried my best to isolate that variable, but obviously some other changes are downstream from that decision.

I don't think I could ever go back - I feel more clear headed, have begun losing the last stubborn 10-15 lbs which I have always found to be a challenge, and my skin has improved.

YMMV, but to me the results are plainly obvious.