Liver doesn't have a label on it telling you how much A & D it contains either, and it varies by batch (animal) too... That's what you get with real food products, but I wouldn't consider that a negative. In fact, I'd take a more natural product any day over the more processed alternative (in general).
I use FCLO the same way I use liver, oysters, etc... every now and then for a Vit/Min boost. If you're interested, GP is running a sale on FCLO currently, so it might even end up being comparable to Carlson's price wise...
I alternate between buying Green Pastures butter/CLO blend and eating liverwurst. I also now throw a little Neptune krill oil into the mix. This keeps the amount of processed supplements to a minimum (I used to consume a lot of fish oil caps). The Green Pastures cost isn't too bad as I'm not buying it every month.
I consider Green Pastures food, while Carlson's a industrial processed supplement.
Gimmick, shimmick. Come on Monte, you haven't done your homework well enough, Carlson's is certainly better than the standard CLO but no way as good as FCLO. I can't blame you if you don't want to spend the extra money but the extra money buys a better product since it isn't heated, a claim Carlson's doesn't make. FCLO is a purer product, check out this site for a better explanation.
Just adding my experience in case it helps anyone else. I bought the FCLO / butter oil blend and did not notice any difference (better or worse) and I took the entire bottle. Maybe it takes longer? I'm not against trying it again, but in the land of under-employed I am not messing around with any supplements other than what I already have around.
Carlsons will be a good choice, as long as it doesnt have the synthetic forms of Vitamin A. I used the Super 1000mg Cod Liver Oil, and my last batch had synthetic A and D in it. The liquids do not currently show the synthetic version, but they may change. (My body reacted well to the Super 1000s, including being calmer and more stable, so it will still do some good.)
I did just purchase some Green Pastures Butter Oil/Cod Liver Oil Blend, because I do think it is a superior product, and I saved for a few months to get it.