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Genes Block Miracle Weight Loss Drugs?
21 Apr
Summary
- Genetic variants affect 10% of people, causing GLP-1 resistance.
- This resistance leads to higher, less effective GLP-1 hormone levels.
- Science is too early for genetic testing to predict drug success.
A recent study by Stanford Medicine scientists indicates that genetic variants may be responsible for GLP-1 resistance in approximately 10% of the population, affecting the efficacy of widely used weight loss injections. These drugs, known as GLP-1 receptor agonists, mimic a natural hormone that regulates blood sugar and appetite.
Researchers found that certain genetic variants, particularly a variant in the PAM enzyme, can lead to elevated GLP-1 levels that are less biologically effective. This means individuals may require higher doses for the same impact. While this research is ongoing, it suggests that genetic predispositions can influence how well these medications work for weight loss.
Despite these findings, experts caution that the science is still in its early stages and genetic testing is not yet recommended for predicting success. Other factors, including insulin resistance, dopamine sensitivity, diet, and lifestyle, also play a significant role. A comprehensive approach involving dietary changes and medication management is often necessary for optimal results.
