Posts tagged amino acid supplements | XY Files – Veedma's evidence-based men's health articles

Does creatine increase testosterone? The science on muscle fuel and male hormones

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

Jan 11, 2026 · 10 min read

Creatine monohydrate is the gold standard for building muscle, but persistent rumors suggest it might double as a testosterone booster. Here is the clinical reality behind the hype, the hormones, and the hair loss myths. “Men often confuse performance enhancement with hormonal manipulation. Creatine is fuel, not a hormone precursor. While it allows you to ...

Does creatine cause erectile dysfunction? The evidence says no

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

Jan 01, 2026 · 9 min read

Creatine is one of the most studied performance supplements on the planet, yet men still ask one anxiety-loaded question: “does creatine cause erectile dysfunction?” Here’s what the clinical literature actually supports, why the rumor started, and what to do if erections change while you’re using creatine. “When patients ask ‘does creatine cause erectile dysfunction,’ I ...

Low calorie protein shakes: How to keep muscle while cutting fat

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

Dec 17, 2025 · 11 min read

Cutting calories usually means losing size, but the right protein strategy can flip the script. Here is the science behind using low calorie protein shakes to burn fat while protecting hard-earned lean mass. “When you are in a calorie deficit, your body looks for energy anywhere it can find it, including your muscle tissue. A ...

Creatine weight gain: what’s normal, what’s not, and how to stay in control

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

Dec 11, 2025 · 10 min read

Creatine can move the scale, especially early on. Here’s what the best studies show about creatine weight gain in men, why it happens, what it means for performance and body composition, and how to use creatine without getting blindsided by your weigh-ins. “Most guys panic when the scale jumps after starting creatine. In most cases, ...

Glycine for sleep and performance: The amino acid you might be missing

Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist

Dec 09, 2025 · 10 min read

It is not just for building muscle. This simple amino acid cools the body, calms the mind, and might be the missing link in your deep sleep architecture. “We often look for complex pharmaceutical solutions for sleep, but sometimes the answer is basic biology. Glycine helps the body lower its core temperature—a non-negotiable physiological trigger ...