Several factors can reduce DAO levels or activity, including: Gut inflammation (due to infections, food intolerances, IBD, parasites) Leaky gut (increased intestinal permeability) Nutrient deficiencies (e.g., vitamin B6, vitamin C, copper, zinc) Medications (e.g., NSAIDs, antibiotics, antihistamines, antidepressants) Chronic stress Microbial imbalance (dysbiosis) Genetic polymorphisms affecting DAO gene expression Damage to the intestinal lining where DAO is produced is one of the most common contributors to low DAO activity and histamine intolerance
The Dietary Supplements application segment is expected to grow from 0.5 USD Billion in 2024 to 0.9 USD Billion by 2035
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A high TSH often means you are underactive
However, like all medications, it can have side effects