This depends how much tuna/sweetcorn you put in the sandwich and what bread you use (and how much bread there is).
how many calories in a Greggs bran and rye bun/roll?
too many. too many.
383 calories
in 4 kcal = 17kjal
If the tuna was stored in oil, then 150 calories. If the tuna was stored in water, the 100 calories.
120 calories
It really just depends upon how one makes the sandwich. For example; one cup of tuna salad has 383 calories -- of course it depends upon what they have put in the salad -- mayonnaise, boiled eggs, onions, etc. . Two slices of bread has about 200 calories or 100 calories per slice. This totals about 583 calories for the average tuna salad. But it depends on how you make the Tuna. Canned Tuna in water has about 40 cal. per serving. A whole can is 2.5 servings. So a Whole can is 100 calories. If you use Low fat mayo it 40 calories for 1 tbsp which is really all you need to mix one whole can of tuna. Which makes it 140 calories. The Bread is where alot of the calories come from. But if you use low fat bread it wont be so bad. Or you can do what I do and Wrap the tuna in a leaf of Romaine Lettuce which is almost no calories! Its so Good!
I would say a cheese sandwich is healthier, but that is just my opinion
There are about 50 Calories in 2oz of light tuna in water.
A good way to make a tuna sandwich depends on who makes it. Many people like their sandwiches different than others making it impossible to have a good way of making a tuna sandwich. However, one can find easy guides on how to make a tuna sandwich on websites like wikiHow.
390 calories
The average 4-oz. serving of raw tuna contains 122 calories.
A 4 oz. can of light tuna in oil is about 210 calories or 53 calories per oz. Other tuna in oils are approximately 56 calories per ounce.
245 calories.