black market retatrutide is an experimental weight-loss drug not approved by the FDA – and yet, you can buy it in a New York City bodega. CBS News has been investigating the June 8, 2026: Reckless physicians

The research gap isnt scientific skepticism its economics

A recent analysis on GLP-1 use in New York City showed that theres a higher concentration of GLP-1 use for weight management in wealthy neighborhoods

Several health conditions are already known to increase the risk of NAION, including: Type 2 diabetes High blood pressure Heart disease Prior heart attack Sleep apnea Obesity Many patients who take GLP-1 medications may already have one or more of these risk factors, which is one reason researchers continue to investigate the potential relationship between semaglutide and NAION

They may recommend foods with high levels of B12 (like dairy products or fortified cereals) or a daily supplement containing B12