Timeline of effects: what youll notice If you are wondering what do B12 shots do in terms of a timeline, the results arent always instant, but they are often more noticeable than oral vitamins
If I could of returned this product I would
I have been referred to a haematologist but I don't hold much hope given they advised my GP to tell me not to SI
Guidance from primary care sources and specialty reviews points out a few important facts: Vitamin B12 deficiency can cause anemia and neurological symptoms, but routine screening of average-risk adults is not generally recommended Instead, testing is focused on people with higher risk, such as older adults, strict vegans, people with certain stomach or intestinal conditions, or long term use of specific medicines like metformin or acid reducers In real life, that might look like this: Your provider may suggest B12 rich foods or a standard oral B12 supplement, even without immediate lab work, if: You are over about 50 and your diet is low in animal products You follow a strict vegan or vegetarian diet and want to keep your levels up You have a mild risk factor but no concerning symptoms Your provider is more likely to order B12 labs if: You have unexplained fatigue, numbness, balance problems or memory changes You have anemia on other tests You have multiple risk factors, surgeries or long term digestive conditions that make absorption less likely Even when lab tests are not ordered right away, dosing and follow up should still be decided together with a licensed clinician
Why Its No Longer on Amazon While there hasnt been one official explanation, the likely reasons include: Increased regulation around injectable-related products Classification issues (medical vs research use) Platform restrictions on items associated with injections Amazon has been tightening policies across multiple categories, and BAC water appears to have been caught in that shift
