Terranova Vitamin B12 500mcg Complex is a nutrient including stabilised rice bran and plant sources such as parsley leaf and dandelion leaf. Stabilised Rice Bran (SRB) SRB is a major nutritional source of B-vitamins, various active B-vitamin metabolites and other nutrients that support the function and/or bioavailability of B-vitamins (such as magnesium and zinc) as well as nutrients often depleted during different types of stress (such as potassium, zinc, and iron). Parsley Leaf Parsley provides various nutrients which support B-vitamin function and metabolism, as well as being a source of folate, iron and vitamin C, which are required along with B12 in haemoglobin formation. Dandelion Leaf Dandelion leaves are another plant source of B-vitamins and B-vitamin-supportive nutrients, as well as being a source of iron, which interacts with B12 in haemoglobin formation. Beet Root Juice & Greens Beet root is especially rich in folate and also provides iron, both of which are required along with B12 for haemoglobin formation. Ginger Rhizome/Root Ginger may support the healthy release of gastric juice, which carries intrinsic factor (the compound needed for the intestinal absorption of B12). Gentian Root Like ginger, gentian may also support the healthy release of gastric juice, which carries intrinsic factor (the compound needed for the intestinal absorption of B12).