A new study reveals a potential double-edged sword in the popular anti-aging compound nicotinamide riboside (NR), a form of vitamin B3. While NR is known to boost cellular energy and is marketed for its potential to promote longevity, researchers have discovered it can also increase the risk of serious neurological complications and triple the risk of cancer metastasis. The study found that high levels of NR not only feed cancerous cells but can also cause them to metastasize to the brain. This research highlights the complex and potentially dangerous effects of supplementing with NR, especially for individuals who may have undetected cancers. The findings suggest a need for caution and further investigation into the long-term safety of such compounds. Read the full article at https://www.sciencedaily.com/releases/2026/03/260302030657.htm