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Dietary insufficiency Vitamin B12 is found almost exclusively in animal products, such as meat, dairy, and eggs

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By promoting healthy telomeres, vitamin B12 helps maintain oocyte health

B12 is an essential nutrient, and its deficiency is common, especially among individuals following restricted diets like vegetarianism or veganism, pregnant or breastfeeding women, older adults, those who have undergone gastrointestinal surgery or have gastrointestinal disorders, and people with an autoimmune condition known as pernicious anaemia

Food sources Some of the top sources of thiamin in your diet include: What it does Riboflavin is a component of two coenzymes that are needed for energy production, cellular function and metabolism

even in patients treated for years with conventional doses of folic acid, the serum levels of vitamin B12 are found to be low