What are they and you are talking about? facepalm.jpg
Tinned fish is usually made right on board of large ships, that consume a lot of diesel, during sailing. A lot of CO2 made by them. If a fish canned on land, it is a bad fish, that is canned already stalled. Check the can before buying - if it canned on board of fishing ship, it's probably a good product, made from fresh fish, if it canned somwhere else, avoid it.
There is no "lowest carbon" proteins, all proteins have nearly same amount of carbon, because otherwise they would not be proteins.
Not all tuna have noticeable mercury content in meat, it depend on age and variety, so it is up to the fisherman what variety and size of tuna to fish and can and what is too old to be food.
What are they and you are talking about? facepalm.jpg
Tinned fish is usually made right on board of large ships, that consume a lot of diesel, during sailing. A lot of CO2 made by them. If a fish canned on land, it is a bad fish, that is canned already stalled. Check the can before buying - if it canned on board of fishing ship, it's probably a good product, made from fresh fish, if it canned somwhere else, avoid it.
There is no "lowest carbon" proteins, all proteins have nearly same amount of carbon, because otherwise they would not be proteins.
Not all tuna have noticeable mercury content in meat, it depend on age and variety, so it is up to the fisherman what variety and size of tuna to fish and can and what is too old to be food.