Back in the dinosaur days, before fat-phobia overwhelmed the nation, there were many foods available in much healthier full-fat forms. People have continued to become even more obese and unhealthy, consuming way too many omega 6 oils instead of the good-for-you saturated fats. The fat phobics have ignored the research, retained the blinders, and routinely attack anyone who dares to point out their stubborn ignorance. One of the victims of this current destructive ideology is the lowly can of tuna.
For the Lap-banded low-carber, the water-packed dreck that tries to pass itself off as tuna can be dry, fibrous, and tasteless. There are times when no amount of mayonnaise makes the stuff easily pass though an opening the size of the diameter of a pencil eraser. (When one has a 7cc fill in an 11cc Lap-band, the opening between the two parts of the stomach, called a stoma, is about that size.) Water-packed tuna can be a pain. Literally.
Progresso markets a tuna packed in olive oil that shines like a proverbial jewel in a land full of tasteless tuna, and though pricey, it is available in money-saving bulk quantities. Now if Amazon.com would just get off its rear and restock.