It is often prescribed for individuals with pernicious anemia or other conditions that impair B absorption (for example, after gastric surgery or in certain digestive disorders)
This makes it easier for you to get the full dose with none of it lost during digestion
No dramatic visible change yet, and thats normal
found only in foods of animal origin Foods that are high in vitamin B 12 (g/100g) include: Liver (2658) Beef and lamb (13 Chicken (trace) Eggs (12.5) Dairy foods (0.32.4) In normal humans the absorption of vitamin B 12 from foods has been shown to vary depending on the quantity and type of protein consumed
If B12 levels were low to begin with, longer-term benefits like red blood cell production or nervous system support may take several weeks
In most cases, vitamin B12 deficiency symptoms may include extreme tiredness, poor concentration, memory loss, dizziness, and disorientation