Propionibacterium shermani

Why You Need It

• Vitamin B12 Production: It synthesizes B12, a vital nutrient for red blood cell formation.
• Nerve Protection: Adequate B12 levels (supported by this bacteria) maintain the myelin sheath, protecting your nerves.
• Energy Metabolism: It helps convert food into usable energy, fighting fatigue.

Deep Dive

Propionibacterium shermanii is a unique bacterium often found in the soil and the human gut. Its primary claim to fame is being a major producer of Vitamin B12. In the world of nutrition, B12 is notoriously difficult to get from plant sources alone. This bacterium bridges that gap. When P. shermanii ferments food (like in sauerkraut or specific supplements), it churns out B12. It also produces Propionic Acid, a short-chain fatty acid that feeds the cells lining your gut, keeping your digestive barrier strong. For vegans and vegetarians, this bacterium is a game-changer, offering a natural pathway to increased B12 levels without relying immediately on synthetic supplements.

Natural Food Sources

You won't find P. shermanii explicitly listed on an apple or carrot. Instead, you consume it by eating foods it helps ferment or by taking it as a probiotic supplement. It is the 'worker' behind the scenes.

Supplementation

Since P. shermanii is technically a living organism, it is usually taken as a probiotic supplement rather than a chemical powder. Look for "Propionibacterium shermanii" on the label of high-quality B12 or probiotic blends. Dosage varies by manufacturer, but typically 1-10 billion CFUs daily is standard. It is essential for vegans and those with absorption issues (like pernicious anemia history) to monitor B12 levels regardless of supplementation.