Posts by Dr. Susan Carter, MD: Endocrinologist & Longevity Expert | XY Files – Veedma's evidence-based men's health articles

Metabolic confusion diet: can calorie cycling help men lose fat without stalling?

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Dec 14, 2025 · 12 min read

Metabolic confusion is a calorie-cycling approach that alternates higher- and lower-calorie days. The promise is fewer plateaus and less misery. Here’s what the evidence says, how to build a metabolic confusion meal plan, and how men can use it without sacrificing muscle, training, or hormones. “Metabolic confusion sounds like a hack, but the body isn’t ...

How body fat speeds up aging in men: the science of metabolism and longevity

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Dec 10, 2025 · 14 min read

Extra belly fat in men is not just stored energy. It is a hormone factory and immune organ that can speed up aging, damage metabolism, and cut into your healthy years. The good news: targeted fat loss is one of the most proven tools we have for longevity. “For men, losing excess visceral fat is ...

Does testosterone increase metabolism in men?

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Dec 09, 2025 · 11 min read

Many men hear that more testosterone means a faster metabolism and effortless fat loss. In reality, testosterone can nudge metabolism in the right direction for men with true deficiency, but the payoff depends heavily on muscle, movement, diet, and sleep. “In my clinic, testosterone is never a magic metabolism hack. In men who are genuinely ...

What is a red light therapy hat and should men use one for hair loss?

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Dec 08, 2025 · 14 min read

If you are staring at your hairline in the mirror and wondering what is a red light therapy hat and whether it can save your fade, you are not alone. Here is how these glowing caps work, what the science says, and how to decide if one fits into your hair-loss game plan. “A red ...

The best multivitamin for men over 50: how to choose between popular brands like nature made and centrum

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Dec 08, 2025 · 14 min read

For men over 50, the “best” multivitamin is less about the logo on the bottle and more about whether the formula matches your biology, diet, and medications. Here is how to choose smartly — and where Nature Made Men’s Multivitamin 50+ and Centrum Men 50+ fit in. “By the time a man hits 50, subtle ...