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Category: Obesity

September 3, 2026

Obesity Is a Disease: BMI, Waist Size, and Lab Testing

How BMI and waist measurements fit with complication-focused evaluation—and why no blood test diagnoses obesity.

Editorial status: Draft for named medical and laboratory review. Product URLs are supported by current Ulta Lab Tests search and internal-link evidence but still require a final in-site canonical check before publication. Obesity is a […]

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September 3, 2026

Leptin and Leptin Resistance: Function, Testing, and Limits

How leptin signals long-term energy availability, why high levels do not diagnose “leptin resistance,” and when serum leptin measurement may add useful clinical context.

What is leptin, and should it be tested for weight loss? Leptin is a hormone made mainly by fat cells. It carries information about stored energy to the brain, especially the hypothalamus, and helps coordinate […]

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