Body mass index

Explore the role of BMI in assessing overall health, its limitations for muscular men, and how to use it alongside other metrics like body composition for a more accurate picture of your fitness and well-being.

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The essentials for body mass index — then explore the latest posts below.

Testosterone and the Dietary Guidelines for Americans: What men should actually do

Testosterone and the Dietary Guidelines for Americans: What men should actually do

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Jan 21, 2026 · 12 min read

The Dietary Guidelines for Americans (DGA) do not provide testosterone targets. Men can use the DGA to support a healthy body weight and cardiometabolic health, which can indirectly support testosterone, and should seek medical evaluation for persistent symptoms or repeatedly low morning labs. Here’s what diet can improve, what it can’t, and how to act ...

BRI vs BMI for longevity: Why your waist may matter more than your weight

BRI vs BMI for longevity: Why your waist may matter more than your weight

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Jan 15, 2026 · 13 min read

BRI likely predicts longevity risk better than BMI for many men because it reflects abdominal fat distribution, not just weight for height. If your BMI is “fine” but your waistline is climbing, BRI can be the reality check that pushes you toward the right labs and the right plan. “For men, the big miss with ...

Should i lose weight before building muscle? A doctor’s guide for men who want results

Should i lose weight before building muscle? A doctor’s guide for men who want results

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Jan 11, 2026 · 13 min read

It depends on your goal and how much weight you need to lose, but most men do best by prioritizing fat loss while protecting or building muscle. If you have obesity, weight loss usually comes first for health and longevity, then you push harder on muscle gain once training feels better and safer. “The biggest ...

Can testosterone increase blood pressure? A practical guide to TRT and blood pressure for men

Can testosterone increase blood pressure? A practical guide to TRT and blood pressure for men

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Dec 15, 2025 · 11 min read

Yes, testosterone can increase blood pressure in some men, but the average effect is usually small and the research is mixed. The bigger issue is identifying who is most likely to see a rise, then monitoring blood pressure and lab markers so treatment stays safe. “When men ask me whether testosterone replacement therapy and blood ...

What does healthy sperm look like? A normal sperm color chart and 8 signs of healthy sperm

What does healthy sperm look like? A normal sperm color chart and 8 signs of healthy sperm

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Nov 25, 2025 · 16 min read

Healthy sperm usually cannot be confirmed by looks alone, but normal semen is typically clear, gray, or white and a semen analysis is the only reliable way to measure sperm count, movement, and shape. This guide breaks down the 8 signs of healthy sperm you can watch for at home, plus a normal sperm color ...

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