To improve two ingestion inhibiting factors of a spirulina food in which effect on health hardly appears by continuous intake of the food and the color of excrement becomes blue-green by the intake, though the food is excellent in nutrition and function.

Spirulina which has been used for food for a long time is compounded with cereal vinegar, rice vinegar, fruit vinegar, etc., which are edible vinegar to provide the objective spirulina function developing food capable of sufficiently utilizing nutrition and function of Spirulina and reducing that the color of the food becomes blue-green.