Which endocrine disorder can alter olfaction?

Diabetes Mellitus is the correct choice because alterations in olfactory function can occur due to a variety of factors associated with this condition. High blood sugar levels in diabetes can lead to neurological changes, affecting the olfactory pathways and sensory perception. Furthermore, complications such as neuropathy and cardiovascular issues may also interfere with the transmission of signals related to smell.

In addition, individuals with diabetes are at risk for conditions like diabetic ketoacidosis, which can lead to changes in olfactory perception due to metabolic derangements. The presence of other health complications such as sinus infections, which are more prevalent in those with diabetes, could additionally impact the sense of smell.

While other conditions may have an indirect impact on overall sensory perception or general health, they do not have as strong a direct link to alterations in olfaction as Diabetes Mellitus does.