Intermittent fasting has gained traction as a popular weight-loss method and may also offer new approaches to managing chronic pain, according to recent research. A study published in Brain, Behavior, and Immunity outlines how meal timing impacts the gut-brain axis, the system that connects the gastrointestinal tract with the central nervous system.
Understanding Intermittent Fasting
Intermittent fasting involves scheduled eating periods, often involving long durations without food. Health organizations define it as a pattern focused on when you eat rather than what you eat.
Linking Meal Timing and Chronic Pain
Chronic pain, defined by the Cleveland Clinic as pain lasting more than three months, often comes with cognitive challenges and anxiety. Although traditional treatments target inflammation or nerve pain, new studies indicate that meal timing may affect chronic pain by altering gut bacteria and body-wide inflammation.
Researchers at Zhengzhou University in China studied animal models during fasting cycles. Their findings suggest that intermittent fasting reinforces the intestinal lining, preventing inflammation-related compounds from entering the bloodstream and reaching the nervous system.
The Role of Gut Microbiome
Analysis revealed that fasting elevates levels of Alistipes finegoldii, a bacterium in the gut. When administered to non-fasting animals, this bacterium improved pain and cognitive function similarly. Alistipes finegoldii produces compounds that transform into hippuric acid, which is associated with the study’s benefits.
Mechanism of Action
At the cellular level, hippuric acid influences the STING inflammatory pathway. An overactive STING pathway can escalate inflammation, aggravating pain and impairing brain function. The study found that hippuric acid reduces STING activity, calming inflammatory signals in the central nervous system and alleviating behavioral symptoms.
Research Limitations
The researchers acknowledge several limitations. Observational and initial studies can pinpoint a link between fasting and altered gut-brain signaling, but they cannot conclude that fasting directly initiates these changes. As findings are rooted in animal models, extensive human trials are essential to establish safe fasting protocols for chronic pain management.
Individual responses to fasting differ due to variations in gut microbiome, health conditions, nutrient intake, and genetics. Adhering to fasting protocols may also be challenging for some, and may not suit everyone’s lifestyle.
While fasting is not a chronic pain remedy, the study’s insights could inform future treatments targeting the gut-brain connection, prompting further research to develop personalized dietary approaches.
Khloe Quill writes for Fox News Digital, covering diverse topics including food and drink, travel, health, among others.