Turmeric (Curcuma longa) has a long history of use in traditional medicine systems, such as Ayurveda and Traditional Chinese Medicine, for supporting digestive health and alleviating symptoms related to the stomach, such as indigestion and bloating. Modern scientific research has begun to validate some of these traditional claims, primarily focusing on curcumin, turmeric's most active compound.

Several clinical trials and animal studies suggest that curcumin exhibits anti-inflammatory, antioxidant, and gastroprotective properties. For example, research has found that curcumin can help reduce symptoms of dyspepsia (indigestion) and may help protect the gastric mucosa from damage caused by nonsteroidal anti-inflammatory drugs (NSAIDs) and alcohol. Some studies indicate that turmeric extracts may help reduce the severity of gastric ulcers and support faster healing, likely by reducing inflammation and oxidative stress.

However, while the evidence is promising and supports the traditional use of turmeric for stomach health, it is not yet robust enough to be considered definitive. Many studies use concentrated curcumin extracts, which may not reflect the effects of culinary turmeric. Additionally, larger and longer-term human trials are needed to further establish efficacy and optimal dosages. Nonetheless, current evidence supports the use of turmeric for mild digestive discomfort and as a preventive aid for gastric health.