XY Files Blog | Veedma's evidence-based men's health articles

Neutral grip pulldown: How to build your back while protecting your shoulders

Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert

Nov 26, 2025 · 10 min read

A neutral-grip pulldown can build back width with lat activation similar to a wide, palms-forward pulldown for many lifters and often feels more comfortable on the shoulders. For decades, the wide-grip pulldown has been the default for chasing a “V-taper.” Here’s how turning your hands to face each other can change elbow path and shoulder ...

Medicine 3.0 for men: How to make prevention your default

Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 25, 2025 · 16 min read

To make prevention your default, Medicine 3.0 focuses on earlier risk testing, tracking trends over time, and making targeted lifestyle and medical changes before disease develops. It shifts the goal from being “normal” on paper to being optimal in real life so you can protect performance now and extend healthspan later. “Medicine 3.0 is the ...

Dave’s Killer Bread glycemic index: Weight loss, inflammation?

Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 25, 2025 · 14 min read

Dave’s Killer Bread is generally healthier than white bread because it contains more fiber and protein, but it is not automatically “healthy” for every goal and it is not automatically “bad for you” either. It can still be relatively high in calories and sugar depending on the loaf, slice size, and serving size, and there ...

Hydrogen water bottle benefits: Hype, risks, and what the science actually says

Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert

Nov 24, 2025 · 16 min read

Hydrogen water bottles dissolve extra molecular hydrogen (H₂) into water, and early small human studies suggest modest reductions in oxidative-stress markers and post-exercise fatigue via a “selective antioxidant” effect. These results are not the dramatic recovery, focus, or anti-aging outcomes often marketed. Here’s how these devices generate H₂, what the research and real-world risks show, ...

Does creatine help you lose weight or just add water weight?

Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert

Nov 24, 2025 · 14 min read

Creatine does not directly burn body fat, and it often causes a small early increase on the scale because it pulls water into muscle cells as muscle creatine stores rise about 10 to 40 percent. That same ATP-recycling boost can help you train harder and retain lean mass during a cut, improving body composition even ...

Can kale really help erections? What the science actually says

Alexander Grant, MD, PhD: Urologist & Men's Health Advocate

Nov 24, 2025 · 12 min read

Kale isn’t a proven standalone treatment for erectile dysfunction, but its dietary nitrates and antioxidants can support endothelial nitric oxide signaling. This is the pathway that relaxes penile blood vessels to allow engorgement. Because ED is often related to vascular and metabolic health and becomes more common with age, the bigger win is using a ...

Are Quest bars healthy for fat loss in men? What to know about quest bars and weight gain

Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 24, 2025 · 16 min read

Quest Protein Bars can fit into a fat loss plan, but they can also contribute to weight gain or stalled progress if they push your daily calories above your target. If you have searched phrases like “quest bars and weight gain” or “quest bars stall weight loss,” the real issue is usually portion frequency, calorie ...

Rowing machine muscles worked: What a rower really trains from feet to hands

Bruno Rodriguez, DPT, CSCS: Strength, Recovery, and Physical Therapy Expert

Nov 23, 2025 · 11 min read

A rowing machine works most major muscle groups by combining a powerful leg drive, a hip hinge, and an upper body pull on every stroke. If you want a low impact way to build conditioning while still training your legs, back, and core hard, the rowing machine rower setup is one of the most efficient ...

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

Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 23, 2025 · 11 min read

Turkey deli slices can fit into a healthy, high‑protein diet when they are whole‑muscle and lower sodium, but many deli products are high in sodium and curing agents that can raise cardiovascular risk when eaten often. Some servings reach 1,000 mg of sodium (nearly half the 2,300 mg/day limit), which can increase extracellular fluid volume ...

Celsius vs Red Bull: Which has more caffeine, actually?

Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 23, 2025 · 15 min read

Many Celsius cans have more caffeine than a classic 8.4 oz Red Bull (often about 200 mg per 12 oz vs about 80 mg per 8.4 oz, depending on the product and country). Is Celsius like Red Bull? Yes, both are caffeinated energy drinks meant to boost alertness, but the typical Celsius can is a ...

Is nitrate free bacon actually better for you?

Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 22, 2025 · 12 min read

“Nitrate free” bacon isn’t meaningfully healthier because it typically still contains natural nitrates (often from celery juice powder) that convert to nitrites and can form DNA-damaging nitrosamines in the stomach or during high-heat cooking. What matters more for risk is that bacon is still processed meat (a WHO Group 1 carcinogen). It also depends on ...

Are perfect bars healthy or just clever marketing?

Susan Carter, MD: Endocrinologist & Longevity Expert

Nov 22, 2025 · 10 min read

Perfect Bars are not automatically “healthy.” Despite whole-food ingredients like nut butter and honey, their sugar and calorie load can, for some people, raise glucose and insulin similarly to other high-sugar snacks when eaten away from hard training.[2] An endocrinologist explains how sugar sources, sweeteners, and even snack format (bar vs. shake) can shape satiety, ...