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LIFESTYLE

Debunking the Myths of B12 in a Plant-Based Diet

Michael Filimowicz, PhD
Low Carb Vegan Lab
Published in
3 min readJul 13, 2024

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There exists a persistent myth that a plant-based diet is inherently deficient in vitamin B12 and that to obtain sufficient levels of this important nutrient, one must consume red meat or other animal products. This misconception stems from a misunderstanding of how B12 is produced and absorbed in the food chain.

Contrary to popular belief, animals do not produce vitamin B12 naturally. Instead, they acquire it from the bacteria present in their feed and environment. This fundamental fact shifts the narrative, illustrating that B12 originates from plant-based sources and can be incorporated into a vegan or plant-based diet without reliance on animal products.

Historically, humans obtained B12 from natural sources such as water bodies and soil, where B12-producing bacteria thrived. Early humans likely consumed these bacteria through untreated water and unwashed plant foods. However, in the context of modern urban living, such natural sources are no longer readily available or safe. This shift has led to the increased reliance on animal products for B12, not because they are the only sources, but because they are the most convenient in our sanitized environments.

To address the B12 needs in a plant-based diet, fortified nutritional yeast is an excellent and reliable source. Nutritional yeast is not only rich in B12 but also offers a unique, cheesy flavor that enhances a variety of dishes. It can be easily incorporated into soups, sauces, and baked goods, adding both nutrition and depth of flavor. A notable product in this category is Ecoideas’ B12 + D2 nutritional yeast, which is specifically fortified to meet dietary needs.

The versatility of nutritional yeast makes it a favorite among those following a plant-based diet. Its savory, umami-rich taste can transform a simple dish into a gourmet experience. Sprinkling nutritional yeast over pasta, blending it into creamy sauces, or incorporating it into bread dough can significantly boost the nutritional profile of these meals while providing the essential B12.

Individuals transitioning to a plant-based or vegan diet should consult with their healthcare provider. Regular bloodwork is recommended to monitor nutrient levels and prevent deficiencies. Ensuring adequate B12 intake is vital, but it is equally important to be vigilant about other nutrients that may require attention during dietary changes.

The notion that animal products are the sole or most effective sources of B12 is a misconception often perpetuated by marketing and studies funded by the meat industry. These entities have a vested interest in maintaining the status quo and may not present a complete picture of nutritional science. Understanding that B12 is a plant-derived nutrient can empower individuals to make informed choices about their diet, free from misleading claims.

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