Starkist Canned Cardboard (err, tuna with no added salt ) has 35 mg per serving. By the way, I think the serving sizes on all these canned fishes are 2 ounces - check yours. You get my sarcasm I hope - it's not great tasting by any stretch!

However, recently I started using potassium salt substitute and it tastes quite fine. I dig it since now I don't have to buy any extra potassium supplements.

I figure that once I am in ketosis I can eat the salted variety without any water retention issues, but coming off a carbup I'd rather not. I run for my cardio, so extra weight on my knees is NOT welcome.

One of these weeks when I am feeling experimentative, I might try it and see what happens to my daily changes in weight, which should reflect extra water retained.