i want to share with you this story,a company that conduct tests and analize food products to see if the food values and nutritional contents on food labels are correct,got a big surprize,after testing two diffrent can's of tuna of the same brand at two seperate occasion's,they discoverd that one can had twice the caloric content of the other,so after extended research,it was clear to them what was the cause of that,they discoverd that tuna is a travelling fish,that tuna eat a lot and gain weight and fat at the start of their journey,they lose so much of the weight and fat at the end of their trip,so if the tuna was caught at the start of the trip,the calories in the can will be higher,if the tuna was caught at the end of the trip the calories would be lower.believe it or not.i am starting a new travel agency that gurantee's over weight people the loss of their excess weight on arrivel at their destination,sorry i mean loss of luggage.i know bad joke.