Understanding Arterial Plaque: Can It Clear?

In this article, Dr. Kate Shanahan, a family physician and author, addresses a critical question posed by one of her patients: "I've been avoiding seed oils for several years. How can I still have plaque in my arteries?" The question leads to a deeper exploration of arterial plaque formation, stability, and potential methods for managing heart health.

What Happens When Plaque Forms?

Dr. Shanahan explains that plaque is not merely a buildup of fat in the arteries but can develop in two distinct ways: either leading to stable plaque or unstable plaque that can result in a heart attack. The misconception is that plaque continuously grows, eventually blocking the arteries. Instead, a more common scenario involves the rupture of unstable, inflammatory plaque, which can lead to a blood clot and interrupt blood flow.

The Body's Response to Inflammation

When plaque becomes unstable, the body attempts to stabilize it by forming microcalcifications. These tiny calcifications act as a reinforcement, helping to prevent plaque rupture. This process is critical as it can reduce the risk of heart attacks by stabilizing the plaque rather than completely eliminating it.

Dietary Influences on Plaque Stability

Dr. Shanahan references Dr. Esleston, who demonstrated that significant dietary changes, particularly a strict vegan, oil-free diet, could result in improvements in arterial health. However, she emphasizes that one does not need to adhere strictly to such a diet to achieve positive results.

Stabilizing Plaque Without Extreme Diets

To stabilize arterial plaque, Dr. Shanahan recommends several key lifestyle changes:

Avoid seed oils, specifically the "hateful eight" oils, which are known to promote plaque formation.
Limit the intake of most protein powders, particularly whey and soy protein powders, while allowing for bone broth powders.
Reduce sugar and refined carbohydrate consumption to help manage overall health.
Quit smoking, as tobacco smoke can exacerbate inflammation in the arteries.

Conclusion

In conclusion, while plaque may not fully clear from the arteries, it doesn’t have to lead to severe health issues if managed correctly. Stabilizing plaque is the key to preventing heart attacks, and making informed dietary and lifestyle choices plays a crucial role in this process. For individuals seeking personalized guidance, Dr. Shanahan invites you to visit her website for more information and assistance.