ABSTRACT: The gut microbiota plays a crucial role in gastrointestinal health, immune function, and overall well-being. Dysbiosis has been linked to various conditions such as colon cancer, atopic diseases, mental disorders, autoimmune disorders, obesity, and diabetes. This in vitro study aims to assess the safety and functional potential of two probiotic strains, Lactiplantibacillus (L) plantarum and Bifidobacterium (B) longum, focusing on their anti-lipidemic, anti-diabetic, antioxidant, and probiotic properties. The strains were tested for stress tolerance, including acidic, alkaline, osmotic, oxidative, thermal, detergent, bile salt, and pancreatic enzyme conditions. Both strains exhibited strong resilience, often surpassing the control strain. Their antioxidant activity, measured by radical scav