I've been trying to search for information on this, but I can't think of a way to phrase my search query to get results.
I am gluten, soy and dairy free due to autoimmune disease and I have been Paleo for about 18 months. I am planning to build an aquaponics system to grow my own vegetables, and eventually my own fish. I can't seem to find a commercial fish food that does not contain gluten and/or soy. So my question is - if I feed the fish a product containing gluten and/or soy...will their meat be contaminated? And will there excrement be contaminated, therefore possibly contaminating my vegetables?
Someday, when I have more space, I can grow duckweed for fish food. But in the meantime, I need to figure out if I 'm going to undo all of my efforts if I feed the fish gluten and soy.
Thank you in advance!
EDIT 5/25/12 - Found out that the seafood/meat manager at my local organic grocery store is a marine biologist. Asked him about soy and gluten in the fish excrement and he said that the stomach acid of the fish will destroy the gluten and soy proteins...so as long as I'm not eating the fish, I don't have to worry about the food ingredients. I still want to try to find some kind of organic fish food, but at least now I know I'll be able to use pellets or dissolving food to take care of the fish when I'm traveling!
I don't know the answer, but I am wondering how much space the fish will have. The reason farmed fish can often be more "toxic" than wild fish is because of poor quality filters in tanks and overcrowding. Also, if there is any disease, it will spread very easily. So just keep that in mind.
What kind of fish are you going to raise? That sounds pretty exciting!
Yes, it can.
There are some people who are very sensitive to corn, gluten, and soy, and it can be very hard to find meat sources that do not contain these. My raw milk farmer has "soy free eggs" for those that are allergic to soy, and this is becoming more common.
The question would be, "can you tolerate farm fish from the store?" If so, then it probably will not be a big issue for you while you search for other food sources. If you cannot tolerate farmed fish and you think it is because of the gluten or soy in their diet, then you could look into other fish foods and/or making your own.
Gluten in Fish Stomachs? 2 Answers
Fish and fruit only? 2 Answers
Key Paleo Changes for Asthmatic Kids? 7 Answers
Hacking Biggest Loser? 13 Answers