Skip to content
Dr. Grey AI

Protocol · Cardiovascular

Cardiovascular Disease Prevention & Support Protocol

Omega-3 Fatty Acids (EPA/DHA) and Coenzyme Q10 are the core of this stack, with 4 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Cardiovascular Disease Prevention & Support.

We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.

The stack

6 supplements · 4 graded · 2 confirmed studies

Amount listed in this protocol; not a recommendation.

Supplements in the Cardiovascular Disease Prevention & Support protocol, with the amount the protocol lists, the grade on file and confirmed studies
GradeSupplementAmount listedWhy it’s in the stackEvidence on fileShop
Primary stackThe core of this protocol
Omega-3 Fatty Acids (EPA/DHA)Amount listed: 2–4 g EPA/DHA daily (higher doses for elevated triglycerides)

Reduces triglycerides, decreases inflammation, improves endothelial function, and stabilizes cardiac rhythm

  • All-Cause Mortality: studied
  • Triglycerides: improves
  • High-density lipoprotein (HDL): improves
  • C-Reactive Protein (CRP): improves
  • Inflammation: improves
Grade D for All-Cause Mortality140,983 people

Confirmed studies for Omega-3 Fatty Acids (EPA/DHA) (titles as PubMed lists them)

Coenzyme Q10Amount listed: 100–300 mg daily (ubiquinol form preferred)

Essential for mitochondrial energy production, reduces oxidative stress, and improves heart muscle function

  • High-density lipoprotein (HDL): studied
  • Low-density lipoprotein (LDL): improves
  • Interleukin 6: improves
  • Total cholesterol: improves
  • Intercellular Adhesion Molecule 1: changes; see studies
Grade D for High-density lipoprotein (HDL)1 study · 52 people
Supporting stackListed as additions to the core
MagnesiumAmount listed: 300–500 mg daily

Regulates blood pressure, supports cardiac rhythm, and improves endothelial function

  • Arterial Stiffness: studied
  • Blood Pressure: improves
  • Serum Magnesium: improves
  • Sleep Quality: improves
  • Combined Anxiety & Depression: improves
Grade D for Arterial Stiffness86 people
Vitamin K2 (MK-7)Amount listed: 100–200 mcg MK-7 daily

Activates matrix Gla protein to prevent arterial calcification and directs calcium to bones

Not graded yet

Confirmed studies for Vitamin K2 (MK-7) (titles as PubMed lists them)

CurcuminAmount listed: 500–1,000 mg daily (enhanced bioavailability form)

Potent anti-inflammatory that improves endothelial function and reduces oxidative stress

  • Blood glucose: improves
  • Triglycerides: improves
  • Liver Enzymes: changes; see studies
  • Blood Pressure: improves
  • Interleukin 6: improves
Grade B for Blood glucose18 studies · 3,048 people
Aged Garlic ExtractAmount listed: 600–1,200 mg daily

Reduces blood pressure, improves arterial stiffness, and provides antioxidant protection

Not graded yet

Shop the evidence-backed picks

Support alongside medical care. These supplements are not a treatment for Cardiovascular Disease. If you are being treated for it, talk to your clinician before adding one: supplements can interact with medicines.

Fullscript collectionHeart and circulation: evidence-graded picksOpen on Fullscript

Or shop one supplement

The supplement in this protocol graded A or B. Each opens third-party tested products, matched to the dose above where we can.

  • Grade B

We earn from purchases made in our Fullscript store, and links to Fullscript, iHerb or Thorne carry our referral, so we may earn a commission at no extra cost to you. Grades come from the research and never change based on what we earn. Full disclosure

How this protocol works

In plain language

Cardiovascular disease (CVD) remains the leading cause of death worldwide. It develops over decades through atherosclerosis—the buildup of plaque in arteries—driven by inflammation, oxidative stress, and dyslipidemia. While medications like statins are often necessary, supplements can provide additional cardiovascular protection by targeting multiple pathways.

  • Omega-3 Fatty Acids (EPA/DHA) have the strongest evidence for cardiovascular benefit. The REDUCE-IT trial showed that high-dose EPA (4g/day) reduced cardiovascular events by 25% in high-risk patients already on statins. Omega-3s lower triglycerides, reduce inflammation, improve blood vessel function, and may prevent dangerous heart rhythms. For cardiovascular protection, higher doses (2-4g) are more effective than typical 1g doses.
  • Coenzyme Q10 is essential for heart muscle energy production—the heart never stops beating and has enormous energy demands. CoQ10 levels decline with age and are depleted by statin medications. The Q-SYMBIO trial showed that CoQ10 supplementation reduced major cardiovascular events by 43% in heart failure patients. It also helps lower blood pressure modestly.
  • Magnesium is critical for heart health—it regulates blood pressure, maintains normal heart rhythm, and supports blood vessel function. Low magnesium increases cardiovascular risk, and deficiency is common. Supplementation can lower blood pressure by 2-5 mmHg and reduce arrhythmia risk.
  • Vitamin K2 (MK-7) plays a unique role in cardiovascular health by preventing calcium from depositing in arteries. It activates proteins that keep calcium in bones and out of blood vessels. Arterial calcification is a strong predictor of heart attack risk—K2 may help prevent it.
  • Curcumin is a potent anti-inflammatory that addresses the inflammatory component of atherosclerosis. It improves endothelial function (how well blood vessels dilate) and reduces oxidative stress. Use enhanced bioavailability formulations for absorption.
  • Aged Garlic Extract lowers blood pressure, reduces arterial stiffness, and may slow plaque progression. Studies show significant reductions in blood pressure in people with hypertension.

Expected timeline: Blood pressure effects from magnesium and garlic within 4-8 weeks. Omega-3 effects on triglycerides within 4-6 weeks. Long-term cardiovascular protection requires sustained use over years.

Printed from drgrey.ai/protocols/cardiovascular-disease. For education only; not medical advice. Talk to a clinician before starting any supplement.