'''[[Hypothyroidism]]''' can be seen in '''herbivorous reptiles''' that are fed a diet '''deficient in iodine'''. This is most commonly seen in species that evolved in an '''volcanic environment''' such as Galapagos tortoises, as plants that hold large quantities of '''halogens''' (such as iodine and bromine) are plentiful in these areas. Problems are often exacerbated by the feeding of plants that actually decrease [[Thyroid Gland - Anatomy & Physiology|thyroid gland function]], such as cabbages. | '''[[Hypothyroidism]]''' can be seen in '''herbivorous reptiles''' that are fed a diet '''deficient in iodine'''. This is most commonly seen in species that evolved in an '''volcanic environment''' such as Galapagos tortoises, as plants that hold large quantities of '''halogens''' (such as iodine and bromine) are plentiful in these areas. Problems are often exacerbated by the feeding of plants that actually decrease [[Thyroid Gland - Anatomy & Physiology|thyroid gland function]], such as cabbages. |