A Whole-Body Perspective on Cardiovascular Care

Dr. Heidi Queen, MD | Energize Health & Hormones

Statin medications have been a cornerstone of cardiovascular care for decades. They are widely prescribed to help lower LDL cholesterol, stabilize plaque, and reduce the risk of heart attack and stroke. For many patients, statins play an important and sometimes life-saving role.

At the same time, modern medicine is increasingly recognizing that cardiovascular health does not exist in isolation. Cholesterol metabolism, energy production, inflammation, blood sugar regulation, and liver function are all deeply interconnected. This broader lens is especially important when we consider how statins affect the body beyond cholesterol numbers alone.

One nutrient that frequently enters this conversation is coenzyme Q10 (CoQ10), a compound essential to cellular energy production and antioxidant protection. Understanding how statins and CoQ10 interact—and how both fit into the larger picture of metabolic health—can help patients and providers make more informed, individualized decisions.

What Is CoQ10 and Why Does It Matter?

Coenzyme Q10 is a vitamin-like compound produced naturally in the body and found in nearly every cell membrane. Its primary role is within the mitochondria, where it supports the production of adenosine triphosphate (ATP)—the energy currency that powers cellular function.

Organs and tissues with high energy demands, such as the heart, skeletal muscles, brain, and liver, rely heavily on adequate CoQ10 levels. Without sufficient CoQ10, cells may struggle to meet energy needs efficiently, particularly under conditions of stress, illness, or increased metabolic demand.

CoQ10 also acts as a powerful antioxidant. In its reduced form, ubiquinol, it helps neutralize free radicals and limit oxidative damage that can contribute to inflammation, vascular dysfunction, and chronic disease. Importantly, CoQ10 works synergistically with other antioxidants such as vitamins C and E, allowing these systems to be recycled and reused.

Dietary sources of CoQ10 include organ meats, fatty fish, poultry, beef, olive oil, nuts, and seeds. However, endogenous production tends to decline with age, and certain medications—including statins—can further reduce circulating levels.

How Statins Affect CoQ10 Levels

Statins work by inhibiting an enzyme called HMG-CoA reductase, which plays a key role in cholesterol synthesis in the liver. This same biochemical pathway is also responsible for producing CoQ10. As a result, while statins effectively reduce cholesterol production, they can unintentionally lower CoQ10 levels as well. Human studies consistently show reduced blood concentrations of CoQ10 in individuals taking statins.

For some patients, this reduction may be clinically silent. For others, especially those with higher metabolic demands or underlying mitochondrial vulnerability, lower CoQ10 levels may contribute to muscle-related side effects such as pain, weakness, or fatigue—symptoms that are among the most common reasons people discontinue statin therapy.

Emerging research suggests that statin-associated muscle symptoms may reflect impaired mitochondrial function and increased oxidative stress within muscle tissue. Structural muscle injury has been observed in symptomatic individuals, reinforcing that these symptoms are not merely subjective or benign.

CoQ10 Supplementation and Statin Tolerance

Muscle symptoms affect an estimated 10–25% of people on statins and can lead to dose reduction or discontinuation—sometimes with serious consequences. Studies have shown that individuals who do not take statins as prescribed have higher rates of cardiovascular events and all-cause mortality. CoQ10 supplementation has been studied as a strategy to improve statin tolerance and adherence. Several randomized controlled trials have demonstrated reductions in muscle discomfort and improved quality of life in patients supplementing with CoQ10 while continuing statin therapy.

Beyond symptom management, CoQ10 may offer additional cardiovascular support through its antioxidant effects and its role in supporting heart muscle energetics. While it is not a replacement for statins when statins are indicated, it may serve as a valuable adjunct in appropriate individuals. Supplemental doses commonly range from 100–600 mg per day, depending on symptoms, goals, and individual response. Determining the appropriate form, dose, and timing is best done in collaboration with a healthcare provider.

Metabolic Health: The Bigger Picture

Cholesterol management is only one piece of cardiovascular risk. Increasingly, research shows that metabolic dysfunction—particularly insulin resistance and chronic inflammation—drives much of modern cardiovascular disease. Conditions such as type 2 diabetes, hypertension, obesity, cardiovascular disease, and non-alcoholic fatty liver disease share common metabolic roots. At the cellular level, disrupted energy production, oxidative stress, and impaired nutrient signaling create an environment that accelerates vascular damage.

Insulin resistance is often an early warning sign. When cells no longer respond effectively to insulin, glucose remains elevated in the bloodstream while cells themselves are starved for usable energy. Over time, this imbalance contributes to inflammation, lipid abnormalities, endothelial dysfunction, and plaque formation. This is where CoQ10’s role in mitochondrial energy production becomes especially relevant. Supporting cellular energetics may help improve metabolic resilience, particularly when paired with lifestyle interventions such as nutrition, movement, stress management, and sleep optimization.

Functional Medicine and Personalized Care

In integrative and functional medicine models—such as the approach used by Dr. Heidi Queen, MD—cardiovascular care extends beyond prescribing medications. It includes evaluating how treatments interact with nutrition, metabolism, inflammation, and individual biochemistry.

Strategic lab testing can help identify early metabolic imbalance and guide personalized care. Relevant markers may include:

• Fasting glucose, fasting insulin, and hemoglobin A1c
• Lipid panels beyond LDL alone
• Inflammatory markers such as high-sensitivity C-reactive protein (hs-CRP)
• Liver enzymes including ALT, AST, and GGT
• In select cases, CoQ10 levels or creatine kinase when muscle symptoms arise

Rather than waiting for disease to progress, this proactive approach allows patients and providers to intervene earlier, adjust therapy thoughtfully, and support long-term wellness.

Safety Considerations

CoQ10 is generally well tolerated, with mild gastrointestinal symptoms being the most commonly reported side effects. As with any supplement, interactions with medications should be reviewed. CoQ10 and statins are not recommended during pregnancy or breastfeeding, and statins should be avoided in individuals with active liver disease. Working with a qualified healthcare provider ensures that supplementation complements—not complicates—existing treatment plans.

A More Complete Cardiovascular Conversation

Statins remain an important tool in cardiovascular medicine, but they are most effective when used within a broader framework of metabolic health. Addressing nutrient depletion, mitochondrial function, inflammation, and insulin sensitivity allows for more comprehensive and sustainable care. By integrating conventional therapies with functional medicine principles, patients gain a clearer understanding of how their bodies work—and how to support cardiovascular health at the cellular level, not just on a lab report.

To learn more about primary care with Dr. Queen, to explore the practice or schedule a complimentary discovery call at (415) 548-7901 or use our online appointment form. Isn’t it time you for you to experience a more connected way to care for your health?