Aria Bendix is the breaking health reporter for NBC News Digital.
A Mediterranean diet that's rich in vegetables, fruits and fish may help reduce or stave off symptoms of post-traumatic stress disorder, according to research published this week in the journal Nature Mental Health. The peer-reviewed findings are based on patient data from two studies — one in 2008 and another in 2013 — which collectively involved tens of thousands of female participants.
such as those serving in the military, said Carol Shively, a pathology professor at Wake Forest University School of Medicine who was not involved in the research. Shively’s own research has shown that the Mediterranean diet protects against exaggerated stress responses in monkeys. “When you put that in the context of
what’s going to happen, I think, is that in response to overt stresses, if you’re consuming a Mediterranean diet, you won’t have these horrific stress responses that can be very damaging,” Shively said. For the latest study, researchers at Brigham and Women’s Hospital and the Harvard T.H. Chan School of Public Health selected 191 women from the earlier cohorts: 44 with PTSD symptoms, 119 who had experienced trauma but no PTSD symptoms and 28 who had experienced neither.
in particular, has been linked to dysregulation in brain circuits that manage stress and fear responses. Studies have shown, for instance, that people with PTSD have hyperactive amygdalae, which are a region of the brain that helps process emotions. According to Yang-Yu Liu, the study’s author, the gut microbiome — or the microorganisms, including bacteria, that live in the digestive tract — influences both the development and the response of the amygdala.
' said Liu, an associate professor at Harvard Medical School and an associate scientist at Brigham and Women’s Hospital. Several components of the Mediterranean diet — such as fiber and omega-3 fatty acids — are known to support gut health, which in turn can influence brain function. In particular, Liu and his research team identified a species of gut bacteria that seemed linked to the Mediterranean diet and appeared to protect against PTSD symptoms.
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