What Can Be Done About Post Viral Fatigue?
Post-viral illness is nothing new, although Long Covid has shone the light on it in recent times. It’s actually very common and something that clients have regularly come to see me with over the last 25 years.
The main symptoms I see include, tiredness, weakness, brain fog, heart palpitations, mental health issues, dizziness, gut issues, body aches and pains, and sometimes sinus or breathing issues. There is a long history of natural medicine being used for post-viral illness.
Why Are Some People More Vulnerable Than Others?
Have you ever wondered why some people bounce back quickly after a virus, while others are left struggling for months?
It’s not just about the virus—it’s about the terrain it lands in.
I often use the analogy of two people standing in a spring field. One gets hayfever, the other doesn’t. Same pollen, same breeze—but different internal landscapes. What’s going on inside, even before you reach the field, makes all the difference.
In the same way, post-viral symptoms often reflect what was already happening beneath the surface. Stress, nutrient depletion, past infections, or chronic inflammation can all shape how well the body copes—and how long recovery takes.
Inflammation: The Internal Storm
For some, COVID-19 or other viruses acts like a spark in an already inflamed system—whipping up an internal storm that’s hard to calm.
If your body was already dealing with stress, poor diet, chronic health issues, or medication overuse, recovery becomes more difficult. Inflammation can make you feel deeply unwell and is known to underlie many chronic conditions—from diabetes and dementia to autoimmune issues.
Reducing inflammation with a low sugar, low carbohydrate diet is a good first step. Natural medicines may also help calm the system and support recovery.
Genetic Vulnerabilities
Genetic predispositions can affect how well the body handles inflammation and oxidative stress.
For example, around 60% of people carry the MTHFR gene variant, which affects folic acid metabolism and glutathione production. Glutathione is vital for protecting the body from oxidative stress.
Supporting this pathway—through diet, specific B vitamins, or supplements like NAC—can make a meaningful difference.
Other genes, like IFNG, may also play a role. Tailored nutrient support can help reduce inflammation and support recovery
Gut Health & Immune Resilience
Around 70% of your immune system lives in the gut.
If this system is compromised—through stress, poor diet, past infections, or medication overuse—your ability to recover from a virus can be affected.
Gut symptoms are common in Long COVID and other post viral conditions. Damage to the gut lining can lead to leaky gut, nutrient malabsorption, and heightened immune reactivity. Histamine overload and Mast Cell Activation may also play a role, leaving the body on high alert.
In clinic, I use iridology to assess gut integrity and inflammation. For some, stool testing can offer deeper insights. Supporting gut health with probiotics, fermented foods, natural antivirals, and gut-healing remedies is often a key part of recovery.
Age: A Factor, Not a Rule
Statistically, Long COVID affects:
- Around 10% of 18–49 year olds
- Around 22% of over-70s
But in practice, I see many people in their 20s and 30s struggling with post-viral fatigue. So while age plays a role in how the body responds to infection, it’s not the whole story.
What matters more is the internal terrain—nutrient status, immune resilience, past infections, and how well the body was functioning before the virus arrived. Age may influence severity, but recovery depends on much more than a number
This information is for general guidance only and does not replace medical advice. Naturopathic support is tailored to each person’s unique needs and is not a substitute for medical diagnosis or treatment. Individual results vary.
