I wonder if the fish oils bought from the big trapping supply retailers has preservative in it
( I've been quiet long enough...)
Oh, it has more than that in it !
Most fish oil sold by trap supply houses, is synthetic! It's not real #@$%^& fish oil !
It's made in a lab and anybody that tells you different, has some to sell you !
Take that to the bank !
Now, real sun rendered fish oil, if kept out of the sun and excessive heat in a SEALED glass container, will out live you !
Oil comes from fat
or in the case of , say a carp, the pituitary gland, located in the top of it's head.
Trout, salmon, paddle fish, all make good oil, but you want the fat. Good belly fat, if you can get it.
I know. I make sun rendered fish oil.
The rest of all that stuff, will make little oil.
If the fish oil goes flat or goes "rancid", it was garbage to start with !
Real sun rendered fish oil, does NOT need a preservative...and anyone that says different, should stay out of the fish oil business !