Which classification of diabetes mellitus is primarily characterized by insulin resistance and relative insulin deficiency?

Weight loss despite increased appetite (polyphagia) is a clinical manifestation of diabetes mellitus due to the body's inability to effectively use glucose for energy, leading to breakdown of muscle and fat tissue.

Incorrect choices:

b. This choice is incorrect. Nausea, vomiting, and abdominal pain are not directly related to weight loss despite increased appetite.

c. This choice is incorrect. Impaired wound healing and increased susceptibility to infections are consequences of chronic hyperglycemia, but they are not directly related to weight loss.

d. This choice is incorrect. Rapid weight gain and bloating are not characteristic manifestations of diabetes mellitus; weight loss is more common.

Carbohydrates have the most significant impact on blood glucose levels as they are broken down into glucose during digestion. Monitoring and controlling carbohydrate intake is crucial for managing blood glucose levels in individuals with diabetes mellitus.

Incorrect choices:

a. This choice is incorrect. Fiber intake is important for digestive health and can help stabilize blood glucose levels, but it does not have as direct an impact as carbohydrates.

b. This choice is incorrect. Protein intake can influence insulin secretion, but it has a more modest effect on blood glucose compared to carbohydrates.

c. This choice is incorrect. Fat intake affects overall health, but it has a minimal direct impact on blood glucose levels.