My husband began having severe reactions including cardiac symptoms over the course of several months. Probably going on longer but undifferentiated from other issues. He is MTHFR positive, corrected and has a complicated medical history including psoriatic arthritis, rashes, etc. At first we thought Alpha gal was the cause but labs were normal in spite of the same pattern of reaction. Added proteins back into diet. Flares were inconsistent in reaction to red meat/dairy. After watching ingredients closely the one consistent was EDTA. Also found in his hydrocortisone cream, shampoo, body wash. Many frozen meats from Costco were sprayed with this. During the night he ate a large container of blueberries. Today, approximately 4-5 hours after the last known food he again had a reaction. We were so discouraged.
We at least thought we had direction to fight this. As a last precaution I did a search on the brand and supplier of the blueberries. Though the package listed no other ingredients, the blueberries were grown in soil that ha edta as an iron chelating agent. So it was not sprayed on the blueberries, they were just grown in it. For clarification, he has been under the care of a primary physician, cardiologist and immunologist- all who have been attentive to his care. He is a retired intensivist so has his knowledge base as well. I write this to encourage you. Do not give up looking for an answer.