Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Green tea (Camellia sinensis) has a long history of traditional use in various cultures, particularly in East Asia, where it has been consumed for general health and digestive support. Scientifically, green tea contains polyphenols, especially catechins such as epigallocatechin gallate (EGCG), which have been studied for their potential effects on the gastrointestinal system. Research indicates that green tea polyphenols can exhibit anti-inflammatory, antioxidant, and antibacterial activities, which may contribute to gastrointestinal health by protecting the stomach lining, reducing the risk of gastric ulcers, and inhibiting the growth of Helicobacter pylori, a bacterium associated with gastritis and peptic ulcers (Chacko et al., 2010).

Some human and animal studies suggest that green tea may help with digestion and reduce symptoms of dyspepsia or indigestion. However, the clinical evidence is mostly preliminary, with relatively few high-quality randomized controlled trials directly evaluating green tea's effects on human stomach health. Most findings are based on laboratory or animal studies, and while the mechanistic rationale is strong, more research is needed to establish definitive clinical benefits. Therefore, the current scientific evidence supporting green tea's role in supporting the stomach is moderate.

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