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All the latest articles from our medical experts on testosterone, men's health, and longevity.

Veedma and testosterone: What raises levels naturally and when treatment makes sense

Veedma and testosterone: What raises levels naturally and when treatment makes sense

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Oct 30, 2025 · 12 min read

The most reliable ways for men to raise testosterone naturally are to lose excess abdominal fat, protect consistent sleep, and reduce chronic stress. This guide explains what “low T” means on labs, how to test correctly, and how to discuss fertility-preserving options before considering injections. “Testosterone is not a mystery lottery. In most men, extra ...

Can Vitamin D impact testosterone?

Can Vitamin D impact testosterone?

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Oct 28, 2025 · 15 min read

Vitamin D can modestly raise testosterone in men who are truly vitamin D deficient (25-hydroxyvitamin D below 20 ng/mL), likely because the testes contain vitamin D receptors and activation enzymes that may influence Leydig cell testosterone production. Here is how to tell when correcting vitamin D is a meaningful lever. It also explains when low ...

Estrogen in men: Low Estradiol can ruin your TRT therapy

Estrogen in men: Low Estradiol can ruin your TRT therapy

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Oct 26, 2025 · 14 min read

Low estradiol can derail TRT even when testosterone looks “normal,” because aromatase converts testosterone into estradiol and some men develop symptoms when estradiol is pushed to the low end (for example, around 20 pg/mL in controlled research using sensitive testing). Learn the key signs, the right lab test to order, and how to fix low ...

L carnitine benefits for men: What it can and cannot do for fat loss, workouts, and testosterone signaling

L carnitine benefits for men: What it can and cannot do for fat loss, workouts, and testosterone signaling

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

L-carnitine can modestly improve endurance style training output and may support sperm motility in selected men, but it is not a guaranteed fat loss or testosterone shortcut. This evidence-based guide breaks down which l carnitine benefits are real, what dose and timeline matter, and how to use it like a structured experiment instead of a ...

7 low testosterone symptoms: Get small daily joys back!

7 low testosterone symptoms: Get small daily joys back!

Dr. Alexander Grant, MD, PhD avatar
Dr. Alexander Grant, MD, PhD: Urologist & Men's Health Advocate
Oct 23, 2025 · 15 min read

Common low testosterone symptoms in men include low libido, fewer morning erections, fatigue, low mood, reduced muscle and strength, increased belly fat, and infertility, but diagnosis requires symptoms plus two low early-morning blood tests. The American Urological Association (AUA) and European Association of Urology (EAU) recommend diagnosing testosterone deficiency only when persistent symptoms line up ...

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