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
Weakened Immunity Help strengthen immune system function and resilience
doi: 10.3109/02699052.2016.1144081
No human efficacy claims are made
Asparagine promotes cancer cell proliferation through use as an amino acid exchange factor