Nutritional and Medicinal Benefits of Salvia hispanica L. (Chia): A Comprehensive Review

Salvia hispanica L., commonly known as chia, is an ancient pseudocereal that originated in Mesoamerica and has been utilized by indigenous civilizations for thousands of years. In recent decades, chia has gained significant international attention due to its exceptional nutritional profile and diverse pharmacological properties. This comprehensive review synthesizes current scientific evidence regarding the botanical characteristics, phytochemical composition, nutritional value, and therapeutic applications of chia seeds. The plant is characterized by high concentrations of omega-3 polyunsaturated fatty acids (55-65% of total oil content), complete protein containing all essential amino acids, dietary fiber (27-30%), and numerous polyphenolic antioxidants including rosmarinic acid, caffeic acid, and flavonoids. Pharmacological investigations have demonstrated significant cardioprotective, anti-inflammatory, antioxidant, antidiabetic, antimicrobial, and immunomodulatory properties. This review provides an in-depth analysis of the traditional uses documented in historical codices, modern scientific validations of claimed benefits, and emerging therapeutic potentials for chronic disease management. Current evidence suggests that chia seeds and their derivatives represent a valuable functional food with considerable nutraceutical potential for preventing and managing cardiovascular disease, diabetes, obesity, and other metabolic disorders. However, further clinical trials are warranted to establish optimal dosing regimens and safety profiles in specific patient populations. This review consolidates information from recent peer-reviewed literature to provide practitioners and researchers with evidence-based knowledge regarding chia’s therapeutic significance in contemporary healthcare and nutrition sciences.