Fig. 1From: Are self-reported gastrointestinal symptoms among older adults associated with increased intestinal permeability and psychological distress?Intestinal permeability as reflected by plasma zonulin levels in the different groups of older adults. The group of older adults with GI symptoms (n = 22) had significantly higher plasma zonulin levels than and general older adults (n = 21) but not senior orienteering athletes (n = 27). No significant difference was observed between senior orienteering athletes and general older adults. **p < 0.01, *p < 0.05Back to article page