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Dr. Courtney Craig

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Dr. Courtney Craig

Diet & nutrition strategies for chronic fatigue syndrome (ME/CFS), fibromyalgia, & long-COVID from a fellow Spoonie I truly believe you can too!

First diagnosed with CFS as a teen, I have spent nearly two decades learning as much as I can to get my health back. Using both conventional medicine and integrative medicine, I was able to overcome debilitating fatigue and brain fog. I offer online and in-person consultations for patients with Chronic Fatigue Syndrome/Myalgic Encephalomyelitis and Fibromyalgia. I believe diet should be the founda

tion of any treatment protocol. My main focus is eliminating diet-induced inflammation and promoting nutrient-dense eating habits. I am passionate about sharing hope and healing through food for those with chronic illness.

15/04/2026

Unfortunately, I've seen so many patients waste money on these tests.

Many result in unnecessary food restriction that further worsens the condition.

https://www.theguardian.com/lifeandstyle/2026/apr/12/at-home-food-intolerance-blood-tests

A multimillion-pound industry has sprung up promising it can detect sensitivities to certain ingredients with a simple remote finger prick test. But the results can be misleading – and even dangerous

07/04/2026

One of the most frustrating things about ME/CFS and long COVID is being told by a doctor that there’s nothing that can be done.

I hear this all the time. I’ve experienced it myself.

And yet, if you actually look at the literature, that’s not what it says.

The Grach et al. (2023) review outlines multiple approaches:

- pacing
- symptom management
- dietary strategies
- medications
- support for coexisting conditions

Small improvements add up. Stability matters. Avoiding crashes matters.

I put together a guide on what actually helps and how to think about treatment more realistically.

Learn evidence-based treatments for chronic fatigue syndrome (ME/CFS)—from pacing and diet to supplements and immune support.

27/03/2026

New on the blog:

How to think about supplementation and links to additional articles I've written about the top supplements in postviral conditions.

A science-based guide to supplements for long COVID (PASC). Learn what helps fatigue, inflammation, and recovery and why many supplements don’t work.

24/02/2026

Most conversations about alcohol intolerance in long COVID, ME/CFS, and fibromyalgia stop at histamine. But histamine is rarely the full story.

Alcohol shifts NAD+/NADH balance, blood flow, gut signaling, and autonomic regulation all at once, which may explain why tolerance suddenly changes after viral illness.

Check out a new blog focusing on these mechanisms below:

https://www.postviralnutrition.com/blog/alcohol-intolerance-long-covid-mecfs

Alcohol intolerance in long COVID / PASC, ME/CFS, and fibromyalgia explained. Learn why wine, fatigue, brain fog, and gut symptoms happen after viral illness.

13/02/2026

A new microbiome study identified a previously “hidden” group of gut bacteria that appears more often in people with better overall health.

For those of us following research in ME/CFS, fibromyalgia, and long COVID (PASC), this is one to watch! Studies like this remind us that sometimes the most important players in the microbiome are the ones we don’t fully recognize yet.

Science moves slowly, but discoveries like this help build a bigger picture of how gut ecology connects to systemic health. I’ll be keeping an eye on how this line of research develops.

https://www.newscientist.com/article/2514857-hidden-group-of-gut-bacteria-may-be-essential-to-good-health/?utm_term=Autofeed&utm_medium=SOC&utm_source=Threads =1770967331

Scientists have pinpointed a group of bacteria that consistently appear in high numbers in healthy people, suggesting that these could one day be targeted through diet or probiotics

09/02/2026

New blog post ↓

Why does postviral fatigue feel like being sick ALL THE TIME?

One possible piece of the puzzle is LPS (endotoxin)—a bacterial molecule that can trigger immune signaling and is linked to fatigue, brain fog, and that “flu-like” crash.

In this post, learn:
- what LPS is
- how dysbiosis may increase LPS
- how this connects to "cytokine-sickness behavior"
- and where diet may influence LPS

Lipopolysaccharide (LPS) is an immune trigger linked to dysbiosis, barrier dysfunction, and chronic inflammation in ME/CFS and long COVID. Learn how low-grade endotoxemia may affect fatigue, brain fog, and energy metabolism.

26/01/2026

Everyone talks about “healing the gut.”
Almost no one talks about how the gut actually regulates inflammation.

I just published a new post on intestinal alkaline phosphatase (IAP)—a protective enzyme in the gut lining that helps neutralize bacterial endotoxin (LPS) before it drives immune activation. This is especially relevant for ME/CFS and long-haul COVID, where gut-derived inflammation via LPS has been shown to fuel fatigue and brain fog.

This isn’t another gut-healing protocol or supplement plan. It’s a look at the physiology most of these conversations miss. There are 4 key foods to focus on.

New post here 👇
https://www.postviralnutrition.com/blog/gut-inflammation-mecfs-long-covid

Learn how gut inflammation, LPS endotoxin, and intestinal alkaline phosphatase affect ME/CFS and long COVID. Evidence-based strategies to support gut barrier function.

13/01/2026

I’m starting the year with a topic that’s long overdue for nuance.

Saturated fat has been blamed, defended, and argued about endlessly, but almost always without considering context. In postviral illness, CONTEXT matters immensely!

Check out a new blog post looking at saturated fat through the lens of gut health, immune activation, and why some people with ME/CFS or long-haul COVID feel worse on very high-fat diets that are supposed to be “anti-inflammatory.”

This isn’t about demonizing saturated fat, keto, or carnivore diets. It’s about understanding why the same food pattern can help one person and backfire for another—and why paying attention to physiology often matters more than following rules.

If you’ve ever tried a diet that was supposed to help and felt worse instead, this post is for you.

https://www.postviralnutrition.com/blog/saturated-fat-long-covid-mecfs

Saturated fat isn’t inherently harmful, but context matters. Learn how gut health, immune signaling, and diet patterns shape inflammation in postviral illness.

22/11/2025

One of the most common patterns I see when working with people who have ME/CFS, fibromyalgia, and long COVID is the belief that recovery requires dramatic dietary overhauls—cutting dozens of foods, following rigid plans, or eating large quantities of specific “therapeutic” foods.

But this isn’t how the body works. And it’s certainly not how sustainable nutrition works.

In postviral illness, where energy is limited, small, consistent nutritional changes are far more effective than extreme diets.

Check out the new blog post here for tips:
https://www.postviralnutrition.com/blog/small-nutrition-changes-mecfs-long-covid

Learn how small, sustainable nutrition changes can support recovery in ME/CFS and long COVID. Simple daily habits improve gut health, energy, and inflammation.

17/11/2025

New blog post alert: Post-Meal Fatigue in ME/CFS & Long-Haul COVID

Crash after eating? This isn’t a “food coma.” It’s a real physiological response involving inflammation, blood pooling, mast cell activation, and altered tryptophan metabolism. These systems are already disrupted in postviral illness, which is why eating can trigger such sudden exhaustion.

In this post, I break down the strongest, research-supported mechanisms behind post-meal fatigue and share practical steps to make meals more tolerable without extreme restriction.

Read the full article here: https://www.postviralnutrition.com/blog/post-meal-fatigue-mecfs-long-covid-pasc

Explore why post-meal fatigue is so common in ME/CFS, fibromyalgia, and long-haul COVID/PASC. Learn the science, top causes, and simple ways to reduce symptoms.

14/11/2025

Another video interview with Patrick Ussher... This one on my favorite topic: therapeutic diets for improving mitochondrial function and gut biome remodeling.

Watch it here:

For 15% off Dr Craig's nutrition courses use the code 'FALL15' here: https://www.postviralnutrition.com/online-course-catalogNB - Code is only valid until en...

10/11/2025

Working with postviral patients over the years, I’ve seen a recurring problem: many end up over-restricting their diets in the hope of feeling better. Many fear foods for the wrong reasons.

But too much restriction can backfire—harming the microbiome, increasing sensitivities, and making condition improvement and stability harder, not easier.

That’s why I wrote my latest blog post.

In it, I unpack common misconceptions I hear from patients every day—from fruit fears and dairy myths to long-term elimination diets and carb confusion—and explain what the research actually shows.

Read the full post here 👇
https://www.postviralnutrition.com/blog/nutrition-myths-postviral-illness

Learn which common nutrition myths may slow recovery in ME/CFS, fibromyalgia, and long COVID. Evidence-based guidance for rebuilding health after viral illness.

Adresse

Munich

Webseite

http://www.postviralnutrition.com/, https://about.me/courtneycraig, https://bio.site/craignutrition

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