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A lot of people in the U.S. are buying and using peptides that aren’t approved or regulated, often ordered online or sold in small clinics. These products are being marketed for weight loss, muscle building, anti-aging, and other health goals. The main news is that this market has exploded even though many of these peptides haven’t gone through the usual safety checks, and experts are worried about whether they actually work and whether they’re safe. “Peptides” are short chains of amino acids — think of them as tiny pieces of proteins. Your body makes lots of natural peptides that act like messages, telling cells to do things like grow, burn fat, or repair tissue. Some drugs mimic those natural messages. For example, semaglutide (used in Ozempic and Wegovy) copies a hormone that helps you feel full. But the peptides being sold in this unregulated market can be experimental versions or lab-made copies that haven’t been approved as medicines. What the reporting and the science show is mixed and limited. A few peptides do have proven benefits in properly run clinical trials and are approved for specific uses. But many of the peptides being marketed directly to consumers haven’t been tested in humans or only in small, low-quality studies. The evidence for their effectiveness is often anecdotal — people sharing before-and-after photos or personal stories — rather than large, controlled trials. There are also frequent discrepancies between what’s advertised and what lab tests find in the bottle: some products are mislabeled, contaminated, or contain different doses than claimed. This matters because lots of people are spending money and taking health risks based on promises that may not be true. If you’re trying to lose weight, build muscle, or treat a chronic condition, you might be tempted to try an easy-sounding peptide fix. For some conditions and under a doctor’s supervision, certain peptide-based drugs can be helpful. But for the many unregulated products, there’s little reliable proof they do what sellers claim. People with serious health issues, or those on other medicines, should be especially cautious because interactions and complications can occur. The risks and unknowns are real. Without regulatory oversight, products can carry impurities, incorrect doses, or harmful additives. Side effects can range from mild irritation to dangerous reactions like infections from injections or unexpected effects on blood sugar, blood pressure, or hormones. Pregnant or breastfeeding people, children, and people with certain chronic diseases are particularly vulnerable, and physicians warn against using unapproved peptides. Also, if something goes wrong, it can be hard to get help because the product wasn’t prescribed or tracked through medical channels. Bottom line: There’s a booming market for unregulated peptides, but for most of these products the benefits are unproven and the safety is uncertain — proceed with caution and get medical advice before trying them.
Source: Live Science