Hyperinsulinemia Causes and Risk Factors

Type 2 diabetes is characterized by insulin resistance with relative insulin deficiency, where insulin levels may appear normal or elevated despite hyperglycemia, according to the American Diabetes Association 1
Metabolic syndrome features insulin resistance with compensatory hyperinsulinemia even in normoglycemic states, termed "euglycemic dysmetabolism", as stated by the Endocrine Society 2
Physical inactivity contributes to insulin resistance and subsequent hyperinsulinemia, as reported by the American Diabetes Association 1

Genetic and Hereditary Causes

MODY (Maturity-Onset Diabetes of the Young) is characterized by monogenetic defects in β-cell function, leading to impaired insulin secretion with minimal defects in insulin action, according to the American Diabetes Association 3
Mitochondrial DNA mutations are associated with diabetes and can affect insulin dynamics, as reported by the American Diabetes Association 4

Western diet consumption, high in calories and carbohydrates, promotes hyperinsulinemia, as stated by the European Association for the Study of Diabetes 5
De novo lipogenesis is increased in hyperinsulinemic states, creating a vicious cycle, according to the European Association for the Study of Diabetes 5

Endocrinopathies, such as acromegaly, Cushing's syndrome, glucagonoma, and pheochromocytoma, can antagonize insulin action, leading to hyperinsulinemia, as reported by the American Diabetes Association 4

Evaluating for obesity, particularly central/visceral adiposity, is crucial in assessing insulin resistance, as stated by the American Heart Association 1, 6
Screening for metabolic syndrome components, such as hypertension, dyslipidemia, and impaired glucose tolerance, is essential, according to the American Heart Association 6
Considering endocrine disorders, especially in patients with characteristic clinical features, is important in diagnosing hyperinsulinemia, as reported by the American Diabetes Association 4
Assessing dietary patterns, such as high-carbohydrate and hypercaloric diets, can help identify contributors to hyperinsulinemia, as stated by the European Association for the Study of Diabetes 5

Hyperinsulinemia can exist with normal blood glucose levels, so normal glucose readings do not exclude this condition, as stated by the Endocrine Society 2