Our expert says:
The problem with the energy value of composite dishes such as California rolls and other sushi, except for the plain salmon, is that you need to know the weight of the various items so that you can calculate the final kJ-value. Let's say a dish consists of raw salmon, avo and cucumber then this would be weight of salmon in g x energy value of raw salmon divided by 100. You can also Google to find USA values in calories. One such site states that 1 California roll provides 33 kcal (or 33 x 4.2 = 139 kJ) and a 100g portion would supply 126 kcal = 126 x 4.2 = 529 kJ. So you will have to ask the sushi bar staff how much the various portions weigh and then calculate the energy content per portion and multiply this with the number of pieces each person eats. Eating fish is always healthy as it supplies us with essential omega-3 fatty acids, high quality protein and minerals such as iodine, iron and zinc. If you click on 'Diet & Nutrition' at the top of this page and then on 'Eating throughout life' and 'Pregnancy' you will find a series of articles I wrote to address the concerns regarding potential hazards of eating raw fish in pregnancy which would also apply to young children.
Enjoy your sushi
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