re: What's your must supplements and/or vitamins?

Just to throw this out there had been using fish oil/krill oil, immunity supplement, grass fed beef liver pills, and multi vitamin for the last 2 years. I stopped in January just to see what would happen and I don't see any differences without them not yet at least almost 60 days into this. I'm not saying they don't work or matter because I think different people can benefit from different things more than others. I now am just using:

-7.5 grams of creatine hcl
-pre workout (for the caffeine) with added pink Himalayan salt
-3 whey isolate shakes a day (50g each)
-ZMA supplement before bed on empty stomach

and I feel the same as I did when using all the other stuff. What does this mean? Who knows?

creatine is the most researched supplement in the world. Caffeine is second. Whey protein/aminos are third. I'm going to stick to those for now.