At one year can eat food oredy bah. Japan is easy. Still can find food suitable for 1yr old. I brought my daughter to Denmark at 14mths..... she nearly had to eat bread everyday! Otherwise you can pack along jar food like when I went to Bali for 2 weeks. My daughter was 8mths at that time. My luggage was heavy from diapers and jars and jars of baby food! Bali supermarket quite limited mah. Actually you can pack a few jars just in case and get the rest in Japan. I love supermarket shopping in Japan.