Fitties Journal

Magnesium is involved in over 300 enzymatic reactions, yet nearly half of Americans do not get enough. This guide compares supplement forms, explains why absorption varies so widely, and covers...

A focused stack of 3 to 5 well-chosen products beats a cabinet of mediocre ones. The three-layer framework for what to buy, what to skip, and why.

The ketogenic diet shifts your body's primary fuel source from glucose to fat through a high-fat, moderate-protein, very-low-carbohydrate eating plan. This guide covers the science of ketosis, the different keto...

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...

Collagen is the protein your body relies on more than any other, and production starts declining earlier than most people realize. This guide covers what collagen does, what the clinical...

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...

Most supplement labels are designed to impress, not inform. This guide breaks down every section of the Supplement Facts panel, explains what ingredient forms and dosages actually tell you, and...

Intermittent fasting is more than a trend. This guide covers the science behind IF, its potential benefits for weight management and metabolic health, the risks to consider, who should and...

Women have unique nutritional needs that shift across life stages. This guide covers the essential vitamins, minerals, and supplements that support women's health, from iron and folate to omega-3s, probiotics,...

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...