What to take to lower B12 levels?

To lower vitamin B12 levels, it's important to focus on dietary adjustments. Reducing intake of B12-rich foods such as meat, dairy products, and fortified cereals can help. Additionally, some individuals may consider consulting a healthcare professional about the use of medications or supplements that can impact B12 metabolism. However, it's crucial to approach this under medical supervision, as low B12 levels can lead to serious health issues.