Eh, my first post I don't live in Japan, but my brother does (he's not a low-carber though!):

Nutritional information: 栄養成分表

エネルギー Energy
たんぱく質 Protein
脂質 Fat
炭水化物 Carbohydrates
ナトリウム Sodium
食塩 (Table) Salt

Hope that helps!

Have any of you noticed that eating our HC friends, onigiri and nikuman,
doesn't cause the same problems as they might elsewhere? I was wondering
if it is due to the amount of walking we did when we were there or what the
diff actually is?

Hope to be going back to Japan during hanami next year to celebrate
my nephew's birthday!

-enkeli