What is a hallmark sign of Type 1 Diabetes?

In Type 1 Diabetes, a hallmark sign is polyphagia, which refers to excessive hunger or increased appetite. This occurs because the body's inability to produce insulin leads to a lack of glucose uptake in the cells. As a result, even though the individual may have high blood sugar levels, the cells are essentially starving for glucose. This produces a sense of constant hunger as the body attempts to signal that it requires more energy.

Additionally, polyphagia often occurs alongside other classic symptoms of Type 1 Diabetes, such as polyuria (excessive urination) and polydipsia (increased thirst). These symptoms stem from the body's attempt to manage high blood sugar levels and the resultant dehydration.

The other characteristics associated with Type 1 Diabetes do not align with polyphagia. For instance, increased insulin sensitivity is typically associated with conditions like Type 2 Diabetes or states of recovery from insulin resistance. Weight gain is not a typical feature in Type 1 Diabetes, as individuals often experience weight loss before diagnosis due to the body's inability to utilize glucose properly. Absence of thirst is contrary to the symptoms of hyperglycemia and dehydration, where thirst is markedly increased. Thus, polyphagia is a clear and indicative sign of Type 1