What Causes Chronic Fatigue?

Symptoms, Causes, Tests and Treatment

Recent studies* show that Chronic Fatigue can be caused by Food Intolerance - and improves rapidly with simple dietary changes - with no need for medication. This research has surprised doctors - and brings a new solution to long-term sufferers.

Chronic Fatigue begins healing within days of substituting problem foods.

What are the Symptoms and Prevalence of Chronic Fatigue?

Recognising the Symptoms of Chronic Fatigue

'Tired all the time'; not refreshed by sleep

Chronic Fatigue Syndrome (also CFS) is suffered by millions of people throughout the world – and evidence shows its prevalence is increasing.

Estimates of prevalence have broad variations. However in the US more than a million Americans have Chronic Fatigue - and in the UK around a quarter of a million people. The main symptom is "feeling tired all the time" - which is unrelieved by sleep. Sufferers are generally 'tired when they wake up' - getting worse as the day goes on.

Surprisingly - new evidence reports that the inability to fully digest certain foods (food intolerance) could be a factor. Recent studies show:

  • Certain foods bring on Chronic Fatigue Syndrome in some people
  • Removing those foods from the diet improves symptoms and overall wellness

Chronic Fatigue is also associated with a number of other symptoms:

  • Depression and social withdrawal
  • Frequent headaches
  • Joint pain
  • Physical and mental exhaustion
  • Respiratory difficulty
  • Others

The inability to fully digest certain foods (food intolerance) has far-reaching effects - and according to this new evidence even includes the ability to cause Chronic Fatigue Syndrome.

What causes Chronic Fatigue?

Food Intolerance causes Chronic Fatigue

Recent studies* show Chronic Fatigue is commonly caused by undiagnosed and untreated food intolerances (food sensitivities) - particularly to certain proteins:

  • A major cause of Chronic Fatigue is Gluten intolerance
  • Fructose sensitivity causes chronic tiredness - because of malabsorption issues
  • Another major cause is Dairy intolerance - both casein allergy and lactose intolerance
  • Other causes can be sensitivity to Yeast and/or Nightshade Vegetables

If you do suffer from Chronic Fatigue - the cause will be one or two of these only - not all of them. To find out which food intolerance you have . . . simply track your symptoms against foods eaten - using a Journal.

How does Food Intolerance cause Chronic Fatigue?

The inability to digest certain foods (food intolerance) means partially digested proteins to get into your bloodstream. These are not recognised as 'friendly' by your immune system. The immediate response is to set up inflammation in your body:

  • Inflammation at the joints causes stiffness and arthritis
  • Inflammation in the lungs or nasal passages: respiratory congestion, asthma and cough
  • Inflammation in the membranes of the brain causes headache and migraine
  • Inflammation at the skin can cause hives, eczema and psoriasis
  • Inflammation in the small intestine hinders digestion leading to Chronic Fatigue

In short - when you eat foods your body cannot fully process - a great deal of energy and effort gets expended by your body as it tries to compensate and cope. If you have undetected food intolerance - you have no energy, you can't think straight. It's easy to start feeling helpless - and hopeless.

Luckily - food intolerance is quite easy to fix - simply by "Switching a Few Foods". You track symptoms against foods eaten using a simple Journal >.

What is the treatment for Chronic Fatigue?

Treatment for Chronic Fatigue

Temporary relief treatment: You can take daily medications or supplements for a few hours relief. Some people choose to keep using heavy anti-depressants and other medications. Fortunately - some doctors now understand that food sensitivity can cause Chronic Fatigue Syndrome - and are beginning to recognise the benefits of a personalised diet.

Permanent relief treatment: Find the actual cause of your Chronic Fatigue (find your food intolerance) and substitute that problem food for some other great food. These days there are so many excellent substitute foods - it's easy - and you feel better and better every day you do it.

What if I do nothing about my Chronic Fatigue?

Doing nothing about your Chronic Fatigue leaves you vulnerable to the development of other diseases - like diabetes, colitis, thyroid disease, depression and others. Of course you can choose to do nothing. And until now - you may have thought there was nothing you could do.

But there is something - and it needs no drugs, therapies or procedures. Just switch a few foods!


Which foods foods cause Chronic Fatigue?

Nobody can tell from symptoms alone!

It could be a combination of food intolerances - because symptoms overlap. 

But you can track down the culprits and get fast relief with a foodintol® do-it-yourself program:




Member letter

When I stopped eating those foods, my life changed, seemingly overnight.  I lost eight pounds in 6 weeks;  Since August, I have lost close to 15 lbs.  Not even trying--I certainly eat my share of corn on the cob, potatoes and rice! My cholesterol has plummeted as well, to 187, down from a high of 264. 

Now I realize just how much was due to food intolerance.  Now I'm digesting all food better, I have a craving for vegetables that is new for me, and I'm off all supplements. In general, I look and feel fantastic!  Better energy, no more bouts of daytime sleepiness, better concentration.  My clothes fit much better. My skin is smoother.  I sleep through the night better, and wake up refreshed, not groggy.  My exercise program just took a leap into the stratosphere after I started eating properly--it was as though I could "find" and feel my muscles in a way I couldn't before. 

And so, a great, big THANK YOU! from the bottom of my heart (and gut!).  I pass along your web site to everyone I know who is having food issues.  Keep up the good work!!! All the best, Diane, New York



*Food intolerance, Fatigue and Neurological Disorders



All foodintol® information is based on research from peer-reviewed medical journals