Which nutrient should vegans ensure adequate intake of to prevent deficiency?

Which nutrient should vegans ensure adequate intake of to prevent deficiency?

• A. Vitamin D
• B. Vitamin B12
• C. Iron
• D. Calcium

Answer: (B)

Vitamin B12 is essential for red blood cell formation and nervous system function, and in a vegan diet it’s not reliably obtained from plant foods because B12 is produced by certain bacteria and is found mainly in animal-derived products. To prevent deficiency, vegans need to rely on foods fortified with B12 or take a B12 supplement. This makes B12 the nutrient most at risk for deficiency in vegan diets, so ensuring adequate intake is crucial. Other nutrients like vitamin D, iron, and calcium can be managed with fortified foods, sun exposure, and careful planning, but B12 cannot be depended on from plants alone, which is why it stands out as the best answer for preventing deficiency in vegans.

Vitamin B12 is essential for red blood cell formation and nervous system function, and in a vegan diet it’s not reliably obtained from plant foods because B12 is produced by certain bacteria and is found mainly in animal-derived products. To prevent deficiency, vegans need to rely on foods fortified with B12 or take a B12 supplement. This makes B12 the nutrient most at risk for deficiency in vegan diets, so ensuring adequate intake is crucial.

Other nutrients like vitamin D, iron, and calcium can be managed with fortified foods, sun exposure, and careful planning, but B12 cannot be depended on from plants alone, which is why it stands out as the best answer for preventing deficiency in vegans.