Bikeboy,
the liver is the bodies detoxifier. it neutralizes most toxins and the allows them to be excreted through the urine or feces. it’s possible for some toxins to accumulate in the liver, but if you get it from healthy animal these should be extremely minimal. so, that being said, liver is a great food to eat because it has large amounts of awesome vitamins for your health all around. venison liver if you got some or calf liver from the store are good. even better than the store bought would be some liver from a grass fed, free ranging animal if you have access to such a thing. lamb is almost always grass fed, by the way, which makes it a better meat as far as fat ratios are concernred. but we’re not talking about that 
as far as flax seed oil, it’s ok, but other oils are more superior in my opinion. not to mention, if you’re taking fish oil or cod liver oil, plus eating nuts and some fish and other sources of unsaturated fat, i would not take flax oil. i’m sure you feel better taking it than not, because you might have been deficient in some of your essential types of oils. check the rest of your diet and see how it is, you never know if maybe you’re back on track now and yo ucan refine your diet even more. flax isn’t bad in small amounts, i’ve heard it recommended elsewhere as part of salad dressing, but i don’t eat salad every day so it wouldn’t be much. although, i tossed my flax oil after my doc said he didn’t think i needed it. besides, it goes rancid so easily, and how could i trust that thepeople who made it really did a good job? you know? whole (ground up) flax seeds mixed into food might be ok, as it seems like a bit more natural way to get the oil, rather than a refined product which is subject to spoilage.
thanks for listening y’all. i have a few links i’ll post about the ratio of fats thing. i’m not a pro and i hate trying to explain it cuz i get a bit mixed up sometimes. i’ll let you read about it for yourself. i know not everyone agrees with me, but after almost two years of eating this way, i’ve never felt better in my life. i wouldn’t tell other people about it if i didn’t think there was merit to it. do what makes YOU feel good. everyone’s body is different and differnt amounts of foods are going to make each person well. but there are guidelines that i think we all need to follow for optimal health for the rest of our lives. sorry for the rant 
here’s those links:
http://westonaprice.org/know_your_fats/skinny.html
here’s an article about fats that discusses each type of fat, and where you can get it from and what types are healthy. if you are intrigued or even concerned, read some of the other links on this page:
http://westonaprice.org/know_your_fats/know_your_fats.html
and please noticed there are no ads or popups or anything else obnoxious on there.