Your Daily Gut Health
James Calloway

James Calloway

Fitness & Nutrition Editor

James Calloway is a fitness and nutrition writer covering the intersection of training, nutrition, and digestive health. At Your Daily Gut Health, James focuses on fitness and digestion, workout nutrition, supplement testing, and the gut-performance connection. His work is practical, mechanism-aware, and written for readers who want clear product context without exaggerated claims.

Articles by James Calloway

Does Protein Powder Wreck Your Gut? Here's What the Research Says
Fitness & Performance

Does Protein Powder Wreck Your Gut? Here's What the Research Says

Why protein shakes destroy some people's stomachs and not others, and what you can actually do about it.

James Calloway/April 27, 2026/7 min read
Why You're Bloated After Every Workout (And How to Fix It)
Fitness & Performance

Why You're Bloated After Every Workout (And How to Fix It)

The real reasons exercise makes you bloated, and what actually works to stop it.

James Calloway/April 24, 2026/8 min read
I Tested 8 Gut Health Supplements for 90 Days. Here's What Worked.
Supplements & Testing

I Tested 8 Gut Health Supplements for 90 Days. Here's What Worked.

A fitness writer's honest, 90-day test of eight popular gut health supplements, including probiotics, enzymes, fiber, and internal hygiene support.

James Calloway/April 20, 2026/10 min read
The Gut-Muscle Connection: How Digestion Affects Your Gains
Fitness & Performance

The Gut-Muscle Connection: How Digestion Affects Your Gains

Your gut microbiome plays a bigger role in muscle growth and recovery than most trainers realize. Here's the science.

James Calloway/April 16, 2026/8 min read
When Should You Take Probiotics? Before or After Training?
Supplements & Testing

When Should You Take Probiotics? Before or After Training?

The best time to take probiotics for maximum absorption, and whether your workout schedule changes the answer.

James Calloway/April 12, 2026/9 min read

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A Pediatrician-Backed Guide to Your Kid's Gut Health
Family Health

A Pediatrician-Backed Guide to Your Kid's Gut Health

What parents actually need to know about children's gut health, from a registered dietitian who asked her pediatrician every question you're thinking.

Rachel Kim/April 30, 2026/8 min read
I Tracked My Gut Health for 90 Days. Here's What Changed.
Supplements & Testing

I Tracked My Gut Health for 90 Days. Here's What Changed.

A 90-day self-experiment tracking gut health markers, supplements, diet changes, and outcomes. Full data included.

Daniel Okafor/April 29, 2026/7 min read
7 Signs Your Gut Microbiome Is Out of Balance
Gut Science

7 Signs Your Gut Microbiome Is Out of Balance

The real warning signs of gut dysbiosis, what they may mean, and when to take action.

Mira Patel/April 28, 2026/8 min read