Blood test interpretation

Learn how to read and understand your blood work results, from hormone panels to metabolic markers. Knowing what your numbers mean empowers you to make informed decisions about your health, TRT protocols, and overall optimization.

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The essentials for blood test interpretation — then explore the latest posts below.

Best weight loss supplements for men: What research actually supports

Best weight loss supplements for men: What research actually supports

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Feb 10, 2026 · 12 min read

The best weight loss supplements for men are the few that show modest, repeatable benefits in human studies, mainly caffeine, green tea extract, and soluble fiber, with mixed evidence for garcinia cambogia and forskolin. The win is not “magic fat loss.” It is small leverage on appetite, energy expenditure, and waist size when you also ...

Function Health testosterone results: What “out of range” really means and what to do next

Function Health testosterone results: What “out of range” really means and what to do next

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Feb 09, 2026 · 13 min read

An “out of range” testosterone result means your value fell outside that lab’s reference interval, not that you have hypogonadism. The next step is to repeat a morning total testosterone and add confirmatory labs (free testosterone with SHBG, plus LH/FSH) interpreted alongside symptoms before deciding on treatment. “When a lab report says ‘normal’, it mostly ...

Blueprint supplements for vascular health: What research says

Blueprint supplements for vascular health: What research says

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Jan 30, 2026 · 12 min read

Research does not show that the branded “Blueprint Stack” supplement bundle itself improves vascular health outcomes in men; any likely benefit comes from the Mediterranean-style foods in the routine and the cardiometabolic improvements they support. This men’s health-focused Blueprint protocol review explains what’s in the stack based on public descriptions of Bryan Johnson’s Blueprint protocol, ...

Inflammation and heart disease in men: What to test and what to do next

Inflammation and heart disease in men: What to test and what to do next

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Jan 28, 2026 · 11 min read

Chronic, low-grade inflammation is a proven risk factor for atherosclerotic heart disease, and simple blood tests can detect it before symptoms appear. If your cholesterol looks “fine” but your family history, waistline, or energy say otherwise, inflammation may be the missing piece in your heart risk assessment. “Think of cholesterol as the building material for ...

Building muscle after 40: The smarter plan for strength, recovery, and hormones

Building muscle after 40: The smarter plan for strength, recovery, and hormones

Dr. Bruno Rodriguez, DPT, CSCS avatar
Dr. Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert
Jan 26, 2026 · 11 min read

Yes, building muscle after 40 is absolutely possible for men, but you usually need a tighter plan for training, protein, recovery, and hormone health than you did at 25. The win is not “more grind.” It is better programming, better fuel, and better monitoring so you can keep progressing with fewer setbacks. “After 40, the ...

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