Metabolic syndrome is a cluster of conditions that occur together, increasing your risk of heart disease, stroke and type 2 diabetes.
These conditions include increased blood pressure, high blood sugar, excess body fat around the waist, and abnormal cholesterol or triglyceride levels.
Having just one of these conditions doesn't mean you have metabolic syndrome. But it does mean you have a greater risk of serious disease. And if you develop more of these conditions, your risk of complications rises even higher. If you know you have at least one component of metabolic syndrome, ask your doctor whether you need testing for other components of the syndrome.
Metabolic syndrome is closely linked to overweight or obesity and inactivity.
It's also linked to a condition called insulin resistance.
A lifelong commitment to a healthy lifestyle may prevent the conditions that cause metabolic syndrome. (Getting at least 30 minutes of physical activity most days; Eating plenty of vegetables, fruits, lean protein and whole grains; Limiting saturated fat and salt in your diet; Maintaining a healthy weight; Not smoking).
Source:
https://www.mayoclinic.org/diseases-conditions/metabolic-syndrome/symptoms-causes/syc-20351916