Tag: Megadosing supplements

According to the National Institutes of Health, vitamin B12 does not have a tolerable upper intake level due to its low toxicity. Despite this, many people wonder: is there any danger in taking too much vitamin B12? While excess amounts are typically excreted, high doses—especially via injections—can lead to potential side effects and may indicate underlying health issues.

According to a 2021 report, over 50,000 instances of vitamin toxicity were reported to U.S. poison control centers, primarily linked to the excessive consumption of supplements. This highlights that the situation most likely to result in a nutrient toxicity disorder is the unmonitored megadosing of dietary supplements, particularly those containing fat-soluble vitamins.