People ask how many spirulina supplements they need to eat daily to get the iodine they need.
Most likely, the story about iodine in spirulina came from the name. The fact is that spirulina itself is the biomass of bacteria that live in some warm lakes in some hot countries. So spirulina was also called blue-green alga.
It is not right. Spirulina is not algae. And even if it were an algae, it is not at all obliged to accumulate iodine in itself. Some algae store iodine and some do not.
Best of all, iodine accumulates brown algae like kelp. This is the same seaweed that is sold in cans as a salad.
Kelp, for some unknown reason, sucks out a huge amount of iodine from the sea water. For something she needs it. Well, we use it.
Let's go further. Even if spirulina had taken it into its head (or whatever it has instead of its head) to accumulate iodine, it would have failed, because spirulina does not live in the sea, but in freshwater lakes. This is the kind of green ooze that was mined in America, Africa and Asia.
Spirulina is rich in protein, so it was fed on an industrial scale to poultry and other livestock.
Maybe there is something useful in spirulina, but so far it remains exactly what it has been for the last 100 years - an additive to food.
In short, there is no iodine in spirulina, it is fed to cattle as a source of protein, the benefits for our health have not been proven.
I advise you to read more about spirulina and ferritin.
Have you bought yourself biologically active food supplements again?