Did Japanese have fructose before the HFCS or the WW2?

Dr Lustig announced that Japanese did not have any fructose in their diet until the U.S. supplied sugar to them after the WW2. Maybe the doctor should read this:

“It was not until the eighteenth century, however, when sugar cane began to be cultivated in Japan, that sugar became more readily available to the common people.”

Apparently the Japanese did have fructose in their diet although not in the amounts as the Westerners do today. And they also did not show much fancy about animal fat, as another source says later on:

“Lack of meat and dairy products in the Japanese diet produced an aversion to oily tastes, so that even vegetable oil was not commonly used for cooking.”

This was in the old times and the Japanese found the meat (mainly fish) and fats (rather oils than lard) tasty since then, but their traditional diet still remains one of the healthiest in the world.