Exploring Ethnobotany in the Catalan Linguistic Area: Traditional Plant-Based Knowledge for Addressing Gastrointestinal, Metabolic, and Nutritional Disorders

Ethnobotanical research in the Catalan linguistic area (CLA) is crucial due to the persistence of traditional medicinal plant knowledge. Gastrointestinal, metabolic, and nutritional disorders are major global health issues requiring effective treatments. This study aimed to analyze plants used for these disorders in the CLA, compare the findings with phytotherapy literature, and examine correlations between plant use in humans and animals. Data were sourced from the database of the research group of Catalan ethnobotany at the University of Barcelona and the Botanic Institute of Barcelona, representing a collection of ethnobotanical studies. A total of 630 plant taxa were examined, with 15,252 use reports (UR) provided by 2301 informants. Gastrointestinal disorders were the focus, comprising 94.24% of the UR. The high informant consensus factor (0.96) indicated strong reliability of the results. The most often reported species were <i>Matricaria recutita</i> (5.97%), <i>Thymus vulgaris</i> (5.12%), and <i>Lippia triphylla</i> (4.90%). Lamiaceae (19.86%), Asteraceae (18.78%), and Rosaceae (5.55%) were the top botanical families. The main uses were digestive (17.62%), intestinal anti-inflammatory (15.68%), and antidiarrheal (8.91%). The main part of the plant used was the aerial part (33.22%). Tisane (69.25%) was the most cited pharmaceutical form. Traditional uses were confirmed by pharmacological literature in 57.59% of cases. This work highlights the potential of medicinal plants for treating gastrointestinal, metabolic, and nutritional disorders in the CLA. Further research is possible in other territories, as well as in the phytochemical and medicinal aspects of the plants recorded.