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Monitoring and adjustments: Regular blood tests to check B12 levels Assessing if symptoms get better or worse Changing the injection frequency as needed By customizing the B12 injection schedule, healthcare providers can make treatment more effective

Any excess gets excreted in the urine

Nazy, I., Arnold, D

In addition to impacting the speed of absorption of oral supplements, the digestive process also affects the extent of absorption, with 40%-50% of low-dose B12 vitamins being absorbable

Vitamin B12 is associated with cardiovascular health, including helping with red blood cell production and reducing levels of homocysteine, an amino acid that plays a role in blood clots

Both require subcutaneous injection