Pterocarpus marsupium, commonly known as Indian Kino or Vijaysar, has a long history of use in Ayurvedic medicine, where it is traditionally employed to support digestive health, including the function of the small intestine. In Ayurveda, it is believed to have "grahi" (absorbent) and "deepana" (appetizer) properties, which are thought to help improve digestion and manage gastrointestinal disorders like diarrhea and dysentery. Its astringent and anti-inflammatory actions are valued for calming and supporting the intestinal mucosa.

However, while some studies have explored the anti-diabetic, antioxidant, and anti-inflammatory properties of Pterocarpus marsupium, there is a lack of robust clinical evidence specifically linking it to direct benefits for the small intestine or its diseases in humans. Most scientific research focuses on its ability to regulate blood sugar and address metabolic syndrome, rather than gastrointestinal indications. The support for its use in small intestine health remains primarily based on traditional practice and preliminary pharmacological findings, rather than high-quality human clinical trials.

In summary, the use of Pterocarpus marsupium to support small intestine function is justified by traditional Ayurvedic texts and usage, but scientific validation for this specific application is limited.