Fitties Journal

A plant-based diet can fuel serious athletic performance, but it creates predictable nutrient gaps. This guide covers exactly where those gaps are, which supplements close them, and how to build...

HMB is dosed by body weight, not a flat 3 grams. What the 2025 ISSN position stand says HMB supplements do, who they help most, and who can skip them.

L-glutamine is the body's most abundant amino acid. Here are its real benefits, who actually needs a supplement, and how to dose it.

A complete guide to body fat measurement. Compare methods from skinfold calipers and bioelectrical impedance to DEXA scans, with free calculators for seven of the most widely used formulas.

Athletes with digestive sensitivities face a double challenge: exercise itself can increase gut distress, and many sports nutrition products contain hidden FODMAP triggers. This guide covers the low-FODMAP protocol, how...

ATP is the energy behind every muscle contraction. This guide breaks down how the three energy systems produce it, how training and nutrition affect ATP availability, and what clinical research...

High-intensity interval training (HIIT) is one of the most time-efficient approaches to cardiovascular conditioning and body composition. This guide covers how to build a cardio base, structure your first HIIT...

Your back is involved in virtually every physical movement you make, and most people under-train it. This guide covers the anatomy, exercises, programming, and recovery strategies you need to build...

You don't need an hour to get a real workout. Micro workouts, short high-intensity sessions of 1 to 10 minutes, are backed by research and built for real schedules. This...

Athletes burn through micronutrients faster than the general population, and most don't replace them fast enough. This guide breaks down which vitamins and minerals matter most for performance and recovery,...

Your body doesn't just lose water during training. It loses the minerals that keep muscles firing, nerves signaling, and temperature regulated. Here's how to build a hydration strategy that actually...