I ordered this spirulina on the advice of a friend who has lost weight by adding a diet The price is very suitable for organic 600 tablets, it is more in store FYI it is advisable to do a blood test before because if your body does not lack of iron, rich iron intake of spirulina (20x in wheat) is not recommended because very dangerous (hemochromatosis), the Doses should be taken progressive, do not take more than 3 weeks to sharpen, pause before a further course.