How much omega-3 can be obtained from fresh water lake fish, if any?
Freshwater fish can be a useful source of the long chain omega-3 polyunsaturates, but the amount is very variable, depending on conditions. The amount depends on the type of plankton and microscopic plants found in the water in which the fish are reared. Tropical areas often have different organisms to those found in more temperate areas and, as a result, can have low omega-3 levels. If the fish are farmed, the type of food they are fed will have a big influence. For more information relevant to your area, try asking local universities if they have more detailed information.
