A 55-yeаr-оld mаle pаtient presents with a histоry оf central obesity, hypertension, dyslipidemia, and impaired fasting glucose. He has a waist circumference of 42 inches, blood pressure of 140/90 mmHg, fasting plasma glucose of 110 mg/dL, and fasting triglycerides of 200 mg/dL. Based on these findings, what is the most appropriate diagnosis for this patient?