Scroll to Top

Brain Fog Symptoms: Causes and Treatment

brain fog symptomsBrain fog symptoms are something I am quite familiar with. I’ve experienced them many times, and maybe you have too.

I recently wrote about the brain fog I experienced after drinking a diet soda.

Even today I experience these symptoms on a regular basis since I’ve been going through chemo treatment. They come and go through each round of infusions as the drugs enter and days later clear my system.

Brain Fog Symptoms

Brain fog symptoms can best be described as a lack of ability to concentrate, focus and remember things.

Typical brain fog symptoms include:

  • Headaches
  • Forgetfulness
  • Confusion
  • Poor concentration

The above symptoms often result in secondary issues such as:

  • Poor sleep
  • Fatigue
  • Anxiety
  • Low motivation

In my case dealing with brain fog, the symptoms I experienced were transitory and directly related to something that entered my body. As soon as those things cleared my system, the brain fog went away.

Causes of Brain Fog

Brain fog can be caused by any number of things. The chemicals found in diet soda and harsh drugs used in chemo treatment, for instance. They can also be caused by an underlying health condition.

Common causes of brain fog include:

  • Lack of sleep
  • Chemicals
  • Drugs
  • Medication
  • Menopause
  • Multiple Sclerosis
  • Depression
  • Chronic Fatigue Syndrome
  • Lupus
  • Allergies
  • Head injury
  • Stroke

Short of an underlying medical issue, brain fog is generally caused by either something we’re putting into our body or by a lack of sleep.

How to Treat Brain Fog

Of course, adequately treating brain fog depends on the cause.

The way I discovered an adverse reaction to diet soda was when I eliminated it from my diet. When I added it back in 30 days later, I immediately experienced brain fog symptoms. After that, I knew exactly what the cause was and therefore how to treat it.

Therefore, one way you can treat brain fog is to try an elimination diet. This consists of eliminating certain foods and reinterring them one at a time noting their effects.

Besides checking to see if anything we’re putting into our body is causing our brain fog, we should also make sure we’re getting adequate sleep. Most people are not aware of how sleep affects memory and brain health.

If you’ve eliminated the possibility of a negative food or drink reaction and are getting enough sleep on a regular basis yet still experiencing brain fog symptoms, seek a medical doctor’s advice. It may be a reaction to medications your taking or some other health related issue that needs to be investigated by a medical professional.


Brain fog symptoms generally are described as a lack of ability to concentrate, focus and remember things.

These symptoms often come and go depending on the foods we eat, medications we take or simply a lack of sleep. When these symptoms persist, try to investigate the cause and eliminate it as soon as possible.

If you persist in having brain fog symptoms and cannot identify the cause via diet elimination and rest, it’s best to seek a medical doctor’s advice.

Receive More Free Brain Boosting Tips via Email!

* indicates required

4 thoughts on “Brain Fog Symptoms: Causes and Treatment”

  1. Nice one! I had terrible brain fog with my pregnancy and then for about 2 years after delivery! Diet and exercise definitely helped.

    1. Thanks for sharing your experience with brain fog and what worked for you, Nishi! Wow, 2-3 years of dealing with brain fog! What a battle you had with it! Diet and exercise, 2 great healers indeed!

  2. Good read! I also struggled with brain fog, even though I didn’t went through chemotherapy. In my case, I found out it was caused by my diet, specifically by grains (gluten/gliadin). It’s been reported that it takes about 5 days on gluten-free diet till the symptoms of brain fog are gone. It usually takes me 3 days to flush it out of my system when I eat something containing grains. Haven’t thougth about diet soda causing the same trouble. I think I will eliminate that as well. BTW short-term fasting (3-5 days) is used as a supporting therapy for cancer treatments and also for neurological disorders. Beside the effect that you eliminate all the food that could possibly cause brain fog and other problems, it activates stem cells and other repair mechanisms in the body. They say it also helps with jetlag, which is basically a form of brain fog. Have you experiment with that? I think I will never again drink diet soda while on plane…

    1. Thanks, Iva! I really appreciate your comments and input here! Thanks for sharing your experience with fasting and gluten sensitivity. I did not know about how 3-5 days of fasting could help support cancer treatment. Thank you so much for sharing!

Leave a Reply

Your email address will not be published. Required fields are marked *