Alicia Mackey Huber explains why many Japanese people eat sushi with sea salt instead of soy sauce: both regular and gluten-free soy sauce are extremely high in histamine. For people with histamine disorders, especially those with long-haul COVID, even small amounts trigger facial puffiness, itching, and fatigue. She switched to sea salt after experiencing these reactions herself.
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Even a third of Japan eats their sushi with sea salt instead of soy sauce. If you tolerate it you could do the gluten free soy sauce. But a lot of people, a huge number of people, they eat it and they get really tired or they get hives or they get some other symptoms. It's because soy sauce including gluten free is very high in histamine. If you had Covid you probably have a histamine disorder. It causes all these long haul Covid people they have histamine problems from mast cells. So I just found that for me because being Mr. Sensitive with autoimmune conditions and all these health things when I was a kid if you give me soy sauce my face gets puffy and I get itchy and then I get tired and I want sugar and it's just not worth it. But if you handle soy sauce, put some soy sauce on there, you'll probably get more hypoglycemia and want dessert. So I use sea salt.