Vitamin B‑12 (cyanocobalamin) is a water‑soluble vitamin essential for maintaining a healthy nervous system and supporting energy production from fats and proteins. It is also critical for DNA synthesis during cell division, making it especially important for rapidly multiplying cells such as blood cells. Adequate intake of vitamin B‑12, together with folic acid and vitamin B‑6, helps convert homocysteine to methionine, supporting cardiovascular health. Since dietary sources of B‑12 are primarily animal-based, supplementation may be particularly important for vegetarians and vegans. NOW Vitamin B‑12 lozenges provide 1,000 mcg per serving, include folic acid, and are formulated for convenient sublingual absorption. This product is vegetarian/vegan, kosher, and manufactured under GMP quality standards by a family-owned company since 1968. From the FDA: "As part of a well-balanced diet that is low in saturated fat and cholesterol, Vitamin B12 may reduce the risk of vascular disease. The evidence in support of this claim is inconclusive."