Did you know that an autoimmune B12 deficiency condition, pernicious anemia, is very common and is found in most people with a thyroid disorder? To start, pernicious anemia is very common: 10% in the female population (child-bearing age) 10% of elderly population. Pernicious anemia becomes even more common if you suffer from a thyroid disorder: 40.9% Hypothyroidism 57.1% Hyperthyroidism Pernicious anemias can be diagnosed in blood tests, but many people with early onset or mi