daspiffy

Hey, As far as cholesterol, your body makes both the good and bad kind. The reason one kind is bad is because it has a low density so it does not have much momentum and can get stuck on rough spots or turns in your blood vessels and arteries, the good kind has a high density and the momentum tends to keep these cholesterols moving. They also tend to knock the bad cholesterol off of your blood vessels and arteries. Cholesterol is also necessary for your body, but your body should produce enough unless something else is wrong with you. Some native americans from Florida have naturally low cholesterol, which makes it difficult for them to deal with cold weather (though I am not sure what the specifics of their difficulties are). As to fish, most fish, wild or captive, have high mercury content which makes them poisonous to eat. Government specifications say that you may only eat the "safe" (white, not albacore) type of tuna fish twice a month to avoid potential risks of mercury poisoning. Fish raised via aquaculture still have the high mercury content because the fish they are fed still come from the ocean and hence have concentrated mercury. If you continue eating fish, consider eating karp or other herbivores. They have lower mercury content because they are not eating other fish which have already concentrated mercury within their bodies. If you fish, eating fish from fresh water that has not been contaminated with mercury may be safe, but most fresh water in the US has been contaminated. You may be able to find a listing of mercury levels in lakes and rivers if you search online. Good Luck.