Canned or Salted Fish
Fish is a good source of many important nutrients, especially omega-3 fatty acids. However, canned or salted fish like tuna, salmon, cod, and trout might contain a high level of histamine. This substance is formed when histidine, a free amino acid in dead fish tissues, is converted thanks to certain bacteria during the manufacturing process. Consuming these products too much would increase the risk of foodborne intoxication or histamine poisoning. Thus, make sure to read the ingredient list and limit your intake to reduce the risk. [9]
