Cholesterol medications and weight changes
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Cholesterol Medications and Weight Changes: Key Insights
Weight-Loss Medications: Effects on Cholesterol and Body Weight
Weight-loss medications approved for long-term use, such as orlistat, lorcaserin, naltrexone-bupropion, phentermine-topiramate, and liraglutide, generally lead to modest reductions in body weight and waist circumference. These medications also have small positive effects on cholesterol profiles, such as lowering total cholesterol, LDL cholesterol, and triglycerides, and slightly increasing HDL cholesterol. However, the improvements in cholesterol are generally modest and vary by drug, with no single medication improving all cardiometabolic risk factors at once Capristo2021Khera2018Sahebkar2017. Orlistat, in particular, is associated with slight reductions in total and LDL cholesterol, and these effects are more pronounced in patients who lose more weight .
Statins and LDL-Lowering Drugs: Weight Gain and Diabetes Risk
Cholesterol-lowering drugs, especially those targeting LDL cholesterol (like statins), have been linked to a modest increase in body weight and a higher risk of developing type 2 diabetes. Research suggests that part of the increased diabetes risk from lowering LDL cholesterol is due to the associated weight gain, with up to 38% of the effect mediated through increased BMI .
Metformin: Weight and Cholesterol Effects in Older Adults
Metformin, commonly used for type 2 diabetes, is generally considered weight-neutral. However, in people over 60, metformin use is associated with a small but significant reduction in body weight and slight improvements in total and LDL cholesterol levels. This suggests metformin may offer both weight and cholesterol benefits in older adults .
Antidepressants and Antipsychotics: Weight and Lipid Changes
Some medications not primarily used for cholesterol, such as the antidepressant mirtazapine and the antipsychotic risperidone, can affect both weight and lipid profiles. Mirtazapine can cause unfavorable changes in lipid metabolism (such as increased triglycerides and decreased HDL cholesterol) even when weight decreases, indicating a direct effect on lipid metabolism independent of weight change . Risperidone in youths is associated with significant weight gain, but no consistent changes in cholesterol or triglyceride levels overall, though weight gain and triglyceride increases are correlated .
Patient Behavior: Medication Use and Lifestyle Choices
People diagnosed with high cholesterol often improve their diet by reducing fat and cholesterol intake. However, those who use cholesterol-lowering medications may be more likely to consume higher amounts of fat and saturated fat and have larger waist sizes, suggesting some may substitute medication for healthy lifestyle changes .
Weight Loss Surgery: Impact on Lipid Profiles
Significant weight loss from bariatric surgery, such as laparoscopic sleeve gastrectomy, leads to improvements in HDL cholesterol and triglyceride levels, but may not change total cholesterol or LDL cholesterol levels after one year .
Racial and Ethnic Differences in Treatment Recommendations
There are notable racial and ethnic differences in how patients with high cholesterol are advised. Non-Hispanic Black and Hispanic patients are more likely to be recommended lifestyle changes (like diet and exercise) rather than medication, especially at younger ages, compared to non-Hispanic White patients .
Conclusion
Cholesterol medications and weight changes are closely linked, but the relationship varies by medication type. Weight-loss drugs and metformin can lead to modest improvements in both weight and cholesterol, while LDL-lowering drugs may slightly increase weight and diabetes risk. Some medications, like mirtazapine, can alter lipid profiles independently of weight changes. Patient behavior and provider recommendations also play important roles, with some individuals relying on medication over lifestyle changes and disparities in treatment advice across different populations. Overall, combining medication with healthy lifestyle choices remains important for optimal cholesterol and weight management.
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