Fitties Journal

Calculate body fat with the US Navy tape-measure method used by the Department of Defense. Free calculator, the complete formula for males and females, measurement locations, and accuracy tips.

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.

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...

A complete week-long keto meal plan with breakfast, lunch, and dinner for each day, designed to align with ketogenic macronutrient guidelines. Includes practical tips for meal preparation and staying on...

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...

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...

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...