Brine in tuna refers to the saltwater solution in which the tuna is canned. It is basically salt water, which increases the amount of sodium in the tuna. Canned tuna is often found in three varieties: oil, spring water, or brine. Brine is the least favorable option due to its high sodium content, which can be minimized by rinsing. Spring water is generally considered the best option as it helps maintain the omega-3s in the tuna without adding any undesirable elements
. Brining tuna is also a cooking technique that involves soaking the fish in a saltwater solution to improve its flavor and texture
