(I note that mercury concentration is subject to heavy quality control measures. Quality fish oil supplements will include credible guarantees regarding mercury levels, based of independent testing. This is, of course, something to consider when buying cheap sources from some obscure place.)
(I note that mercury concentration is subject to heavy quality control measures. Quality fish oil supplements will include credible guarantees regarding mercury levels, based of independent testing. This is, of course, something to consider when buying cheap sources from some obscure place.)