Retrieved June 8, 2025, from National Institutes of Health, Office of Dietary Supplements
You leave with a blood test request form, information about starting Tier 1 supplements, and a recommendation to have the bloods done as soon as possible Two to four weeks later, at the follow-up consultation, I review your blood results with you, add any Tier 2 supplements based on what the bloods show, and discuss your surgical plan in more detail A minimum of four weeks between first consultation and surgery: this is the floor, not the target
While some NHS areas may offer self-administration after appropriate training, this depends on local policy and is not routinely available everywhere
This article will break down the differences between vitamin B12 injections and oral supplements to help you understand which option might be best for your specific needs
[10] [12] These interactions are supported by pharmacokinetic studies, clinical observations, and drug interaction databases