Back in the 1800s, when America was a country full of proud farmers, iodine intake amongst the population was very high, ranging between 15-80mg on a daily basis.
At this time, conditions relating to a malfunctioning thyroid were nil.
However, today’s U.S. government recommends a minimum daily iodine requirement of 0.15mg.
A paltry intake in comparison and insufficient for optimizing thyroid health.
Since the 1800s, modern farming began to take over, relying heavily on the use of synthetic fertilizers and potassium nitrate (NPK).
These synthetic compounds strip the soil of its iodine content, making it far less prevalent in the modern diet.