Fitties Journal

The somatotype model is popular, but it's not a training program. Here's what ectomorph, mesomorph, and endomorph actually mean, where the framework falls short, and what to pay attention to...

Sleep isn't a passive shutdown. It's when your body repairs, your brain consolidates, and your hormones recalibrate. Here's the science behind sleep quality and the nutritional factors that support it.

Physical activity is one of the most effective tools for managing everyday stress and supporting emotional balance. This guide covers the science behind exercise and stress relief, the best types...

Seven high-protein meals, all under 10 minutes. Full macros, real ingredients, no filler recipes. Plus an interactive Meal Builder with 1,500+ possible combinations so you can create something that fits...

DEXA scans deliver one of the most detailed pictures of your body composition available. This guide covers what the scan measures, how to prepare, how to read your results, and...

Monk fruit is one of the most effective natural sweeteners available for supplements, but most brands do not use it. Here is what it is, how it compares to the...

Women build muscle through the same process as men, just with a different hormonal backdrop. This guide covers the training, nutrition, cycle-based adjustments, recovery strategies, and supplements that drive real...

Timing your nutrition and supplements around training can support better performance and recovery. This guide breaks down what to take before, during, and after workouts, plus when to take daily...

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 HMB and its two forms are, what the 2025 ISSN position stand and the wider research show, and...

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.

L-ergothioneine is an antioxidant made by fungi and some bacteria, and the body absorbs and holds on to it through its own transporter, OCTN1. Here is what the research shows,...

Antioxidants help protect cells from oxidative stress, but the supplement aisle offers dozens of options with vastly different mechanisms. This guide breaks down how each major antioxidant works, what the...

HOWARU Shape B420 is a trademarked name for one probiotic strain, Bifidobacterium animalis subsp. lactis B420. This guide covers its main six-month trial, in which B420 alone showed no significant...

Probiotics are live microorganisms studied for their role in digestive and immune health. This guide covers how they work, which strains matter, how to select and take a quality supplement,...

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.

Calculate body fat with the Yuhasz 6-site skinfold method, designed specifically for athletes and highly fit individuals. Free calculator with separate equations for males and females.