Effect of Diet Quality, FODMAP Consumption, and Gluten Consumption on Non–Celiac Gluten Sensitivity (NCGS) Symptoms

Despite widespread self-diagnosis of non-celiac gluten sensitivity (NCGS) a variety of studies have shown that most patients with NCGS experience no symptoms from the consumption of gluten. Rather, many studies have shown that FODMAPs are the likely culprit of NCGS symptoms. To further explore the causes of NCGS symptoms this study surveyed participants on their diet quality, FODMAP consumption, and gluten consumption while also determining NCGS symptom level using the GSRS-IBS survey and IBS-SSS survey. The results showed that diet quality was not correlated with IBS-SSS score or GSRS-IBS score. However, certain dietary components that negatively affected diet quality did correlate with NCGS symptom level. Similarly, FODMAP consumption was correlated with GSRS-IBS score while gluten consumption was correlated with both IBS-SSS and GSRS-IBS score. Overall, the results of this study suggest that limiting the consumption of FODMAPs, gluten, and foods that negatively contribute to diet quality can help reduce NCGS symptom level.