• Welcome to Phoenix Rising!

    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.

    To become a member, simply click the Register button at the top right.

Amino acid urine histidine level?

vision blue

Senior Member
Messages
1,877
Curious for those who have taken an amino acid urine test, what your histidine levels are. In RA it's low, in allergies...I can't remember if low or high; theoretically, could go either way...Curious in CFS if there's any general pattern or if we are all different. (mine is low).