Evidence-Based Nutrient Recommendations

New Article: Elevated Vitamin B12 Levels and Mortality


A report from the Prevention of Renal and Vascular End-stage Disease (PREVEND) study released at the beginning of the year raised questions about whether too much B12 could result in a risk for early death. We just completed a comprehensive review of the scientific literature. The summary is, there’s nothing to be concerned about with respect to routine B12 recommendations (with the possible exception of people with kidney impairment, but this has always been known to be the case).

The article is too long to put in an email, but the contents are below.

Elevated Vitamin B12 Levels and Mortality

Leave a comment

Your email address will not be published. Required fields are marked *

Before you comment, please read:

  • If you have a question about whether it's okay to cut supplements in half or combine supplements to achieve the dose we recommend, the answer is “Yes.” Be aware that nutrient recommendations are only estimates—it's not necessary to consume the exact amount we recommend every single day.
  • We aren't able to respond to questions about which brands of supplements to take.
  • We cannot provide personal nutrition advice for specific health conditions. If you need private counseling, here's a list of plant-based dietitians and we especially recommend VeganHealth contributor Taylor Wolfram, MS, RDN, LDN.
  • We urge you to consult with a qualified health professional for answers to your personal questions.