Its in the Carb & Calorie counter book.
Page 186 - Tuna (tinned in brine)
70g half tin = 0g carbs, 76cal, 17g protein, 1g fat, 0g satfat, 0g fibre.
140g full tin = 0g carbs, 153cal, 35g protein, 1g fat, 0g satfat, 0g fibre.
NB: Tinned in oil, still no carb/fibre, slightly more cals, protein and fat.
Cheers