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    Created in 2008, Phoenix Rising is the largest and oldest forum dedicated to furthering the understanding of, and finding treatments for, complex chronic illnesses such as chronic fatigue syndrome (ME/CFS), fibromyalgia, long COVID, postural orthostatic tachycardia syndrome (POTS), mast cell activation syndrome (MCAS), and allied diseases.

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    Active b12 and folate dosage goal?

    Hello, I don't have chronic fatigue, but I believe I have mercury toxicity which could interfere with b12 metabolism. I read that people without b12 deficiency will not react to active b12 supplementation. What dosage does this refer to? Is there a dosage goal that one can test against? For...