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The thread on tests for PA and B12 deficiency mentions other tests that can help to diagnose PA eg gastrin test and others (link in my other reply) When you were tested for coeliac disease

Many people believe that ingredients like lemon water, green tea, aloe vera juice, turmeric, ginger, and honey can create a homemade glutathione drink. While these ingredients certainly provide health benefits and can support liver detoxification, they do not contain glutathione

It attenuates reactive oxygen species accumulation, protecting immune cells like macrophages and lymphocytes from dysfunction

Reconstitute at 20 mg/mL to bring the same dose down to 50 units