Other effects require reporting to a medical team as soon as possible, including: An allergic reaction, including rashes, itching, hives, and a swollen face, tongue, throat, or lips High blood sugar symptoms Other liver damage symptoms, including pain in the upper-right abdomen, appetite loss, dark yellow urine, a yellow tint in the skin or eyes known as jaundice, and feeling unusually weak or tired Tingly, numb, or painful feet Following a balanced diet means that most people are unlikely to develop a B vitamin deficiency
These components enhance both the absorption and utilization of vitamin B12
Purity, storage, and correct compounding are essential for safety and effectiveness
Some medications, particularly those for digestion or certain anti-inflammatory drugs, can affect how your body uses B12