Comparative overview of phytoconstituents and pharmacological potential of Trigonella foenum-graecum leaves and seeds

Background: Trigonella foenum-graecum, commonly known as Fenugreek is a plant found extensively in semi-arid regions. In Indian subcontinents, leaves and seeds of fenugreek are consumed as food and spice respectively. Fenugreek plant as a whole have different ethnomedicinal values. Analysis revealed presence of multiple bioactive phytoconstituents in the seeds and leaves of Fenugreek. The scientific knowledge of comparative correlation of phytoconstituents in leaves and seeds of Fenugreek and their traditional medicinal importance is mostly unexplored. Objective: This review aims to compare the phytoconstituent composition and pharmacological activities of the leaves and seeds of Fenugreek. Results: The phytoconstituent present in leaves and seeds differ widely. Seeds are rich in components like Galactomannan, free peptide 4-hydroxy isoleucine and alkaloids like Trigonelline and Fenugreekine. These compounds reduce glucose and lipid absorption and enhanced metabolism, thus showing anti-diabetic and anti-hyperlipidemic activity, whereas the Fenugreek leaves show more potent anti-microbial activity including anti-dandruff, anti-fungal and anti-amebicidal activities due to high saponin content. Both the parts of the plant are safe for topical application and show anti-inflammatory effect and strengthens hair follicle reducing hair fall. Conclusion: Understanding the correlation between phytochemistry and modern Pharmacology of Fenugreek leaves and seeds is crucial for optimizing therapeutic applications and developing targeted pharmaceutical formulations. In future, bio-active derivatization of the phytoconstituents of fenugreek can be carried out to enhance the pharmacological activities of Fenugreek.