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A few weeks back I made a post about nightshades worsening or at least aggravating my HPPD symptoms, which you can find here:

Interestingly enough, after eliminating nightshades for the past few weeks I've felt much better, however yesterday after eating lunch I noticed my symptoms became aggravated in the same way when I consume nightshades, caffeine and other stimulants. When I analyzed what I ate that was different from previous days I realized it was granola I'd recently purchased with a large amount of nuts, but especially sesame seeds which are high in glutamate. 

In recent months the subject of glutamate has come up in multiple different posts, some of which you can read below:

In addition, several months ago while browsing the Web I came across an interesting connection between glutamate and Restless Leg Syndrome (RLS), which has some overlapping similarities to HPPD. In fact, a user of this site recently complained of symptoms that align with RLS:

RLS is often treated with drugs that have had similar success in alleviating symptoms of those in the HPPD community, primarily benzodiazepines, dopaminergic agents and opioids. But like HPPD these are no cure for RLS. Also similar to HPPD is the high correlation between emotional stress (especially anxiety) and RLS, as well as certain stimulating agents such as alcohol, caffeine and SSRIs which have a track record of exacerbating RLS symptoms. 

In recent years RLS has been linked to chromic inflammation, and like many ailments in Western society it appears most of this can be traced back to poor diet. Not surprisingly after drastically altering their diets to eliminate excess added sugar, alcohol, refined carbs, caffeine, dairy, red meat, chicken, potatoes, excess salt, gluten and other glutamate-rich foods many people with RLS have entirely reversed their condition as their bodies have become less inflamed over time. 

High levels of glutamate are toxic to the brain and are linked to other neurological issues such as migraines (which have an even stronger connection to HPPD and Visual Snow Syndrome), ADHD, obsessive thinking and racing thoughts, Huntington's Disease as well as autism. 

Foods high in glutamate: 

  • Wheat 
  • Dairy (including cheese, yogurt, etc.)
  • Eggs
  • Tomatoes
  • Broccoli
  • Nuts and seeds (especially walnuts and sesame seeds)
  • Mushrooms
  • Potatoes
  • Monosodium Glutamate (also known as MSG, often found in asian dishes)
  • Beef Broths
  • Gelatin
  • Hydrolyzed anything
  • Peas
  • Malted anything
  • "Natural Flavors" 
  • Soy
  • Anything fermented
  • Molasses
  • Canned foods
  • Pretty much anything in store-bought sauces and cannes such as salad dressings, catsup, BBQ sauce, etc. 

Here is a more detailed list of foods containing glutamate:

For those looking to ease HPPD symptoms perhaps a diet low in excess gluten and other glutamate-rich foods, in addition to the many neuro-inflammatory items listed above, is a good place to start. 

Edited by K.B.Fante

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If I was going to exclude everything from that list I'm not really sure what id be eating, if anything.


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It's really not that long. The point isn't to eliminate these foods entirely. Many are extremely healthy for you, especially walnuts and bone broth. The point is, rather than having a steak sandwich with tomatoes, cheese and mushrooms for dinner, perhaps consider something a bit more healthy. If you work on this over the course of months and even years it's likely to have a big impact on your condition. 


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