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

Turkey deli slices nutrition: how healthy is that easy sandwich, really?

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 23, 2025 · 10 min read

Sandwiches are a lunch staple, but hidden sodium and preservatives can impact your metabolic health. Here is how to navigate the deli counter with clinical precision to find low salt, nutrient-dense options. “We often focus on the macros—protein and fat—but for longevity, we must look at the micros and the processing. High sodium and nitrate ...

Celsius caffeine vs Red Bull: which energy drink is really better for your body?

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 23, 2025 · 14 min read

Celsius and Red Bull promise quick energy, but their caffeine, sugar, and stimulant blends hit a man’s heart, metabolism, and hormones in very different ways. Here is how to choose the lesser risk — or skip both when you should. “When men ask me about Celsius caffeine vs Red Bull, I tell them to think ...

Is nitrate free bacon actually better for you?

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 22, 2025 · 12 min read

“Nitrate free” bacon sounds cleaner and safer, but the chemistry in your frying pan and the data in large human studies tell a more complicated story. Here is what we know about nitrates, bacon, and how to enjoy it more safely. “Nitrate free bacon is mostly a label game. The nitrates usually still come in ...

Are perfect bars healthy or just clever marketing?

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 22, 2025 · 9 min read

Convenience foods promise protein and weight loss, but ingredients lists often hide sugar spikes and chemical sweeteners. An endocrinologist breaks down the metabolic impact of today’s most popular fitness snacks. “We often see patients adhering to strict workout regimens but stalling in their metabolic health goals because their ‘recovery fuel’ is essentially dessert in disguise. ...

What is the difference between magnesium citrate and magnesium glycinate?

Dr. Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 22, 2025 · 10 min read

Magnesium is essential for hundreds of bodily functions, but not all supplements are created equal. Here is the evidence-based breakdown of how citrate and glycinate affect your digestion, sleep, and absorption differently. “Patients often grab the first magnesium bottle they see, not realizing that the molecule attached to the magnesium dictates where it goes in ...