II. HYPOTENSIVE EFFECT
I reviewed two reports on the effects of soy sauce on
blood pressure. Kajimoto (6) reported that soy sauce decreases
blood pressure. When 25 to 30 ml of soy sauce was
administered to dogs, whose body weights were 6–10 kg,
their blood pressures decreased 1 min after the administration
and returned to the baseline level within 1 h. Kajimoto
suggested that soy sauce contains a substance that promotes
histamine absorption as the causative agent of the blood
pressure decrease effect.