XY Files Blog

Medically reviewed articles on testosterone, hormones, fitness, and longevity, so you can make informed decisions about your health.

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

Veedma's editorial team: Evidence-based men's health

Nov 26, 2025 · 10 min read

A neutral-grip pulldown can provide a similar lat training stimulus to a wide, palms-forward pulldown for many lifters, while often feeling 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 angles ...

Medicine 3.0 for men: How to make prevention your default

Veedma's editorial team: Evidence-based men's health

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: Is it actually healthy?

Veedma's editorial team: Evidence-based men's health

Nov 25, 2025 · 14 min read

Usually yes, but with caveats: one slice of Dave’s Killer Bread 21 Whole Grains and Seeds has 110 calories, about 22 g carbohydrate, 5 g fiber, 5 g protein, 5 g added sugar, and 170 mg sodium, which makes it stronger on fiber than many supermarket breads but not automatically ideal for weight loss or ...

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

Veedma's editorial team: Evidence-based men's health

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?

Veedma's editorial team: Evidence-based men's health

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

Veedma's editorial team: Evidence-based men's health

Nov 24, 2025 · 12 min read

Kale isn’t a proven standalone treatment for erectile dysfunction, and it does not directly enlarge the penis or work like a prescription ED drug, 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 ...

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

Veedma's editorial team: Evidence-based men's health

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

Veedma's editorial team: Evidence-based men's health

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?

Veedma's editorial team: Evidence-based men's health

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: More caffeine, but better for you?

Veedma's editorial team: Evidence-based men's health

Nov 23, 2025 · 15 min read

Celsius is stronger than a standard Red Bull because a 12 ounce can has 200 mg of caffeine versus 80 mg in an 8.4 ounce Red Bull, while original Red Bull is usually worse nutritionally because it adds 27 g of sugar that Celsius does not. That makes Celsius better than classic Red Bull for ...

Is nitrate free bacon actually better for you?

Veedma's editorial team: Evidence-based men's health

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?

Veedma's editorial team: Evidence-based men's health

Nov 22, 2025 · 10 min read

Perfect Bars can fit a healthy diet, but a standard peanut butter bar has about 330 calories and 18 g of sugar, which makes it better suited to workout fuel than to routine weight loss snacking for most sedentary men.[1] [2] The bigger issue is context: a bar made with nut butter and honey can ...