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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 (FM), long COVID, postural orthostatic tachycardia syndrome (POTS), mast cell activation syndrome (MCAS), and allied diseases.

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Hi everyone,

I was tested for the MTHFR gene and it was found to be normal. Does that mean I definitely don't have problems with methylation, or are there other SNPs which can have an effect?