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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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  1. S

    C-Sucrose Breath Test and other Leaky Gut Tests

    Trying to figure if I have leaky gut and to what degree. I have taken the following tests: 1. Lactulose/Mannitol Test: 2011: Lactulose .82 (ref <1.50), Mannitol 25 (ref 4 - 27) L/M Ratio: .03 (ref <=0.10) and then in 2014: Lactulose .90 (ref <1.50), Mannitol 28 (ref 4 - 27) L/M Ratio: .03...