Soy sauce offers modest health benefits from fermentation, including antioxidants, antimicrobial effects, and potential gut support, but high sodium (900mg/tbsp) limits it to a flavoring rather than staple. pubmed.ncbi.nlm.nih
Digestion and Immunity
Fermented soy sauce boosts gastric juice secretion for better digestion and shows antimicrobial activity against pathogens like E. coli O157 and Salmonella in lab studies. pubmed.ncbi.nlm.nih
Anti-Inflammatory and Anticancer
Nicotianamine acts as ACE inhibitor for blood pressure; animal studies link it to reduced tumors and inflammation via IL-6 inhibition, though human evidence is preliminary.
Heart and Gut Health
Prebiotic sugars feed beneficial bacteria; lower sodium than table salt per volume makes it a better seasoning option for hypertension.
Use low-sodium tamari (gluten-free) sparingly (1 tsp/day) in stir-fries or marinades to fit diabetes/low-sugar diets without spikes.
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