Tag: Bacterial synthesis

While most people associate vitamin K with leafy greens, which provide vitamin K1, the origin of K2 vitamin is significantly different, stemming primarily from bacterial synthesis. This crucial fat-soluble vitamin is largely produced by microbes and found in specific fermented and animal products.

While many vitamins are abundant in plant-based foods, one critical nutrient, Vitamin B12, is almost exclusively found naturally in animal products. This fact makes it a vital consideration for vegetarians, and especially vegans, who must seek alternative sources to maintain their health.

Over 90% of the Vitamin B12 in most Western diets comes from animal-based foods, leading to the common misconception that it is an animal product. The reality is far more complex; animals do not actually produce Vitamin B12 themselves.

According to a 2014 review, some gut microbes, while synthesizing vitamin B12 (or similar corrinoids), do not provision significant quantities to the human host. This reveals a complex relationship, raising the question: do probiotics produce B12 in a way that truly benefits human health?