Baccharoides anthelmintica, also known as Vernonia anthelmintica, has been used traditionally in various systems of medicine, particularly in Ayurveda, Siddha, and Unani, for a range of ailments. Its seeds and extracts have been cited in traditional texts and ethnobotanical surveys for their supposed digestive and appetite-stimulating effects. In Ayurveda, the seeds (commonly called "Kala Jeera") are sometimes included in formulations aimed at improving digestive function and stimulating appetite, particularly in patients with loss of appetite or general debility.

However, direct scientific evidence supporting the use of Baccharoides anthelmintica specifically for appetite deficiency is very limited. Most published research on the plant focuses on its anthelmintic, anti-inflammatory, antioxidant, and antimicrobial properties rather than its effects on appetite. There are a few mentions in ethnobotanical literature and traditional compendia, but these are not supported by rigorous clinical trials or pharmacological studies targeting appetite.

In summary, the use of Baccharoides anthelmintica for deficient appetite is justified by traditional and ethnobotanical accounts rather than by robust scientific validation. The overall evidence is weak and largely anecdotal, with a rating of 1 due to the lack of clinical or preclinical studies directly addressing its efficacy for this specific indication.