Final answer:
Diabetes mellitus is potentially modifiable in CAD through lifestyle changes and medications.
Step-by-step explanation:
Diabetes mellitus is considered a potentially modifiable risk factor for cardiovascular disease (CAD). While certain factors such as age and genetics are non-modifiable, there are lifestyle changes and medications that can help manage and control diabetes, reducing the risk of CAD. Obesity, physical inactivity, and poor diet are potential modifiable risk factors for both diabetes and CAD.