It's important to consume a balanced diet of vegetables, fruit and fresh water to help maintain a healthy body. Vitamin B12 structure, whether it's consumed as a liquid B12 such as the Herbal Goodness liquid extract supplement, as a high vitamin B12 or as a best B12 supplement, is also important. Human cells use vitamin B12 structure to function properly. In fact, it's vitamin B12 that offers amino acids and fatty acids. Even more, amino acids and fatty acids support the maintenance of immunity, muscles, blood sugar and energy.