Is salt containing sodium ferrocyanide safe to consume?
Recently, I heard that there is sodium ferrocyanide in salt, which has made me quite worried. Since we rely on salt for seasoning in our daily cooking, is it really safe to consume salt containing sodium ferrocyanide?
Doctor's answer (1)
In general, salt containing sodium ferrocyanide is edible, but it should be consumed in moderation.
Sodium ferrocyanide is an inorganic compound with relatively stable chemical properties. It is commonly used as a food additive, particularly in table salt, to prevent caking. Its usage is strictly controlled, with only 0.01 grams permitted per kilogram of salt. This amount is far below the level that could potentially affect human health. Therefore, sodium ferrocyanide is safe for human consumption when used within the prescribed limits.
Furthermore, sodium ferrocyanide has an extremely high decomposition temperature, typically above 400°C, which is rarely reached during normal cooking processes. Thus, regular consumption of salt containing sodium ferrocyanide will not cause the substance to decompose into harmful components. However, it is advisable to consume such salt in moderation to avoid excessive intake, which could increase the burden on the kidneys.
In daily life, it is recommended to reduce salt consumption and maintain a healthy lifestyle to help promote overall health.
