However, rations for sailors had its problems (In reality, food at sea lacked vitamin content) as even in 1928, there were 1,153 beriberi patients in the Navy, and this did not fall below 1,000 between 1937 to 1941; In fact, when the Pacific War broke out in December, there were 3,079 beriberi patience.
ただし、兵食の問題（実は航海食がビタミン欠乏状態）等により、海軍の脚気患者は、1928年1,153人、1937年から1941年まで1,000人を下回ることがなく、12月に太平洋戦争が勃発した1941年は3,079人の脚気患者が出た。