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Science-Backed Fitness and Nutrition Blog.
This is Proven Science Nutrition’s evidence-based blog for everyday gym-goers and elite athletes. We provide clear, practical, and clinically-backed advice.


Amino Acids Explained: Understanding Protein, BCAAs, EAAs, and Their Role in Muscle Growth
Amino acids are the building blocks of proteins and play a critical role in muscle growth, recovery, metabolism, and overall health. If you've ever purchased a protein powder or researched sports nutrition, you've likely come across terms like amino acids, BCAAs, EAAs, and leucine. While these buzzwords are common in the fitness industry, they're often misunderstood or oversimplified. The truth is that amino acids are fundamental to human health. They are the building blocks
Leandro Cordova
6 days ago5 min read


Beta-Alanine Benefits: The Complete Science-Based Guide to Performance, Endurance, and Fatigue Reduction
Athlete stretching If you've ever taken a pre-workout supplement and experienced a tingling sensation in your face or hands, chances are you've consumed beta-alanine. Unlike many ingredients marketed in the sports nutrition industry, beta-alanine is supported by decades of scientific research demonstrating its ability to improve exercise performance, delay muscular fatigue, and enhance high-intensity exercise capacity. In fact, beta-alanine is considered one of the few supple
Leandro Cordova
Jul 57 min read


L-Citrulline Benefits: The Complete Science-Based Guide to Performance, Blood Flow, Recovery, and Health
L-citrulline molecule next to a female athlete. If you've ever looked at the ingredient label of a quality pre-workout supplement, you've probably seen L-citrulline listed prominently. Unlike many ingredients in the sports nutrition industry that rely heavily on marketing claims, L-citrulline is supported by decades of scientific research. In fact, L-citrulline has become one of the most extensively studied supplements for improving exercise performance, enhancing blood flow,
Leandro Cordova
Jun 296 min read


Pre-Workout Selection Tips: Choosing the Best Pre-Workout Supplement
Selecting the right pre-workout supplement is critical for maximizing performance. The market is flooded with options, but not all deliver on their promises. I will break down the essentials you need to know to make an informed choice. This guide focuses on practical, science-backed advice to help you pick a supplement that fits your goals and physiology. Understanding Pre-Workout Supplements Pre-workout supplements are designed to boost energy, focus, and endurance during tr
Leandro Cordova
Jun 23 min read


The Power of Creatine: Unlocking Muscle and Brain Potential
What Is Creatine? Creatine is a naturally occurring compound found mainly in muscle cells. It is made from amino acids—arginine, glycine, and methionine—and stored as phosphocreatine. The body produces about 1 to 2 grams of creatine daily. It can also be obtained through foods like red meat and fish or supplements. Phosphocreatine serves as a quick energy reserve for cells, especially during short bursts of high-intensity activity. This energy system is crucial for activities
Leandro Cordova
May 193 min read


Selecting the Right Types of Protein Powders
Protein powders are a staple in many nutrition plans. They support muscle growth, recovery, and overall health. But not all protein powders are created equal. Choosing the right type can make a significant difference in your results. This guide breaks down the main types of protein powders and how to select the best one for your needs. Understanding the Different Types of Protein Powders Protein powders come from various sources. Each type has unique properties, digestion rat
Leandro Cordova
May 124 min read


What Is Whey Protein and Its Benefits?
Whey protein is one of the two primary proteins found in milk, the other being casein. If you’ve ever wondered what whey protein is, it’s the liquid portion that separates from milk during cheese production. This liquid is later processed into a highly bioavailable protein powder. Once considered a by-product, whey protein is now recognized as one of the best protein sources for muscle growth, recovery, and overall health. It boasts a complete amino acid profile and rapid abs
Leandro Cordova
Apr 244 min read


Choosing the Right Pre-Workout Supplement for You: The Ideal Pre-Workout Selection
Selecting the right pre-workout supplement is a critical step in optimizing your training sessions. The market is flooded with options, each promising enhanced energy, focus, and endurance. However, not all supplements deliver on these claims. I will guide you through the essential factors to consider when choosing a pre-workout supplement that aligns with your goals and physiology. Understanding the Ideal Pre-Workout Selection The ideal pre-workout supplement should provide
Leandro Cordova
Apr 203 min read


Creatine Supplementation: Mechanisms, Benefits, Dosing Strategies, and Form Selection
Abstract Creatine is one of the most extensively studied ergogenic aids in sports nutrition, with consistent evidence supporting its role in enhancing high-intensity exercise performance, muscle hypertrophy, and recovery. Beyond musculoskeletal benefits, emerging literature highlights its role in cognitive function and clinical populations. This article reviews the biochemical mechanisms of creatine, summarizes evidence-based benefits, and provides practical recommendations f
Leandro Cordova
Apr 163 min read


Electrolytes & Hydration Supplements: Benefits, Ingredients, and Clinical Dosages
Introduction: Why Hydration Is More Than Water Hydration is often oversimplified as “just drinking more water.” In reality, proper hydration depends on electrolyte balance , which regulates how fluids are absorbed, retained, and distributed throughout the body. Without electrolytes, water alone is inefficient—especially during exercise, heat exposure, or stress. This is why electrolyte supplements can significantly improve hydration, performance, and recovery . If you’re also
Leandro Cordova
Apr 113 min read


Science-Backed Supplements for Everyday Performance
In our fast-paced world, maintaining peak performance every day can feel like an uphill battle. Whether you're a busy professional, a student juggling multiple responsibilities, or an athlete striving for excellence, the right supplements can make a significant difference. This blog post explores science-backed supplements that can enhance your everyday performance, helping you stay focused, energized, and ready to tackle whatever comes your way. Understanding the Need for Su
Leandro Cordova
Mar 253 min read
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