Sometimes this balance may be
disturbed by an autoimmune disease or tumor, for example, and therefore make your pet susceptible to developing an endocrine disorder.
Hashimoto's is a complex
disease, whose causes are too complex to explore in this post, but in my opinion it is generally caused
by exogenous toxins (gluten, mercury, bisphenol - A, bromide, etc) that disrupt gut flora and cause gut permeability and
disturbed immunity that allows infections to enter the body and take root in thyroid tissue, after which in susceptible persons an
autoimmune attack on the thyroid can develop.