Tag: Symbiotic bacteria

Over 50% of the world's mammals are herbivores, yet plants are generally considered poor sources of protein. So, how did herbivores get protein to build their massive muscles and robust bodies? The answer lies not just in the plants they eat, but in the complex, symbiotic relationships with microbes that have evolved within their digestive systems.

While vitamin B12 is predominantly found in animal products, some studies have detected its presence in sea buckthorn berries, sparking interest for those on plant-based diets. However, the scientific community treats these claims with caution, as the vitamin is produced by microorganisms rather than the plant itself.

Animals cannot produce vitamin B12 on their own; only certain types of bacteria and archaea can. This microbial synthesis is the central answer to the question: **Where do herbivores get their B12?** The process is a fascinating example of symbiosis and digestive adaptation in the animal kingdom.