Viral posts on social media claim that statins, a widely used cholesterol-lowering drug, are fueling a dementia epidemic. DW Fact Check examined the scientific evidence behind these claims.

A Bluesky user wrote: 'Saw people on Facebook, including doctors, warning that statins cause dementia. Then I googled it and found an NIH-listed study that says the opposite. It's so difficult to know what to do with our health choices.' This reflects a common dilemma: distinguishing evidence-based medical information from misleading health claims.

According to Johns Hopkins Medicine, more than 200 million people worldwide take statins, so false claims about their safety could directly affect millions of patients.

Claims that statins cause dementia, impair memory, or starve the brain of cholesterol resurface regularly across platforms. Google Trends shows spikes in searches about statins and dementia. DW Fact Check found these claims to be false.

The most comprehensive analysis, from the Cholesterol Treatment Trialists' Collaboration, analyzed data from over 123,000 participants in 19 large trials. No difference in cognitive impairment was found between statin and placebo groups.

Neurologist Dr. Wenzel Glanz said statins may help with dementia and Alzheimer's. 'Elevated blood lipids are a risk factor for dementia. Statins lower lipids and likely reduce dementia risk,' he noted.

Another claim suggests statins deplete brain cholesterol. However, the brain produces its own cholesterol, and the blood-brain barrier prevents blood cholesterol from directly affecting the brain. This claim is false.

In 2012, the FDA added a label warning about memory loss for statins, but these effects were generally not serious and reversible. Current FDA guides do not list memory loss as a side effect.

Doctors recommend reviewing medications every six months to a year, especially in older adults, to minimize potential drug interactions.

Source: www.dw.com