High cholesterol is often dubbed a “silent killer” due to its lack of visible symptoms, but new research suggests there could be a surprising physical clue — phantom smells. According to a 2020 study published in The Laryngoscope, unusual, foul, or burning odors perceived without any external source may be linked to elevated cholesterol levels.
Cholesterol, while essential for building healthy cells, becomes a threat when levels rise excessively, contributing to heart disease, stroke, and other vascular conditions. Typically, high cholesterol is only detected through routine blood tests, often after a serious cardiac event has already occurred.
However, researchers analyzing data from the U.S. National Health and Nutrition Examination Survey (2011–2014) discovered a correlation between high cholesterol and “phantom odor perception” in adults aged 40 and above. The survey included responses from 7,417 participants and considered both cholesterol levels and vascular health history.
A key takeaway from the study was that individuals with well-managed high cholesterol were more likely to report phantom odors than those with normal cholesterol. This association also appeared in individuals with other heart-related conditions. For instance, people who had previously suffered a stroke were 76 percent more likely to experience these phantom smells.
Similar trends were found in those with high blood pressure and diabetes. In particular, individuals over 60 managing diabetes with both insulin and oral medications were three times more likely to report phantom odor perception, according to Surrey Live.
Researchers concluded: “Stroke, angina, congestive heart failure, well-managed high blood pressure, and well-managed high cholesterol are associated with phantom odor perception.”
Tips to Lower High Cholesterol
Given its risks, managing cholesterol levels is vital for overall heart health. Experts recommend a multi-faceted approach that includes dietary changes, regular physical activity, and medications if necessary.
1. Revamp Your Diet
- Reduce saturated and trans fats: Limit red meats, full-fat dairy, fried foods, and processed snacks.
- Increase healthy fats: Opt for olive oil, avocados, nuts, seeds, and fatty fish rich in omega-3 fatty acids.
- Add soluble fiber: Oats, legumes, apples, and citrus fruits help lower LDL (“bad”) cholesterol.
- Use plant sterols/stanols: These compounds, found in fortified foods, can help manage cholesterol.
2. Exercise Regularly
Aim for at least 150 minutes of moderate aerobic activity weekly, such as brisk walking, swimming, or cycling, paired with strength training.
3. Embrace Healthy Habits
- Quit smoking
- Limit salt and alcohol
- Manage stress and maintain a healthy weight
The CDC reminds: “Overweight and obesity raise levels of low-density lipoprotein (LDL or ‘bad’) cholesterol. By living a healthy lifestyle, you can help keep your cholesterol in a healthy range.”