Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — Fasting Insulin

Insulin resistance can develop silently for years before blood sugar becomes abnormal. Learn the symptoms, causes, and health risks — and how at-home fasting insulin testing can help you take control of your metabolic health.

The ZRT Laboratory CardioMetabolic Profile is a convenient finger-prick blood test designed to detect early warning signs of diabetes and cardiovascular disease. By measuring key markers such as insulin, cholesterol, triglycerides, HbA1c, and inflammation, it provides a comprehensive view of heart and metabolic health, supporting early intervention and personalized preventive care.

 

Cardiometabolic risk is a cluster of conditions — including high insulin, cholesterol, and blood sugar — that significantly raise the risk of heart disease and diabetes. Early testing is key to prevention.

Insulin resistance is a growing metabolic concern linked to type 2 diabetes, obesity, and metabolic syndrome. Learn how to recognise the key symptoms, discover how dried blood spot testing offers a convenient at-home diagnostic option, and explore effective treatment strategies to restore insulin sensitivity.

By Dr. Allison Smith, ZRT Laboratory Sex Hormone Binding Globulin (SHBG) is one of the most overlooked variables in hormone health. It directly controls how much testosterone is biologically active in your body — yet it rarely appears on standard blood panels. Whether you're dealing with symptoms of low testosterone, androgen excess, or unexplained hormonal imbalance, understanding SHBG is essential to getting the full picture. What is SHBG? SHBG is a protein produced primarily in the liver that binds tightly to testosterone — and to a lesser degree, oestradiol (E2) and dihydrotestosterone (DHT) — and carries them through the bloodstream....