Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Algae cooking oil: Smart upgrade or just another kitchen trend?

Nov 20, 2025 · 17 min read

Algae cooking oil is a reasonable upgrade if it replaces butter, coconut oil, or shortening, because its mostly unsaturated, high‑oleic fat profile can lower LDL cholesterol similar to other high‑oleic vegetable oils, and it tolerates high heat with a smoke point around 535°F. Here’s how it actually stacks up against common seed oils in cooking ...

Can Vitamin D impact testosterone?

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

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 ...

Top 5 natural ways to increase testosterone

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Oct 18, 2025 · 14 min read

Weight loss, better sleep, smarter training, stress control, and fixing silent medical problems are the top 5 natural ways to increase testosterone. Here is how they work and how to build a practical plan with lab numbers that actually mean something. “Start with the basics. Lose excess weight, protect your sleep, train your muscles, and ...

Testosterone therapy side effects in men: How Veedma helps you monitor TRT safely

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Oct 14, 2025 · 16 min read

Testosterone replacement therapy can be safe for properly selected men, but it predictably affects blood pressure, blood thickness, fertility, skin, and sleep apnea risk. This Veedma focused guide explains what to monitor, the clinical thresholds that matter, and how to adjust early with your clinician. “Testosterone side effects are usually predictable, not mysterious. If you ...