Heart Attack Wake-up Call

One minute, you’re enjoying life. The next… you feel like an elephant is sitting on your chest and you can't breathe. High cholesterol and high blood pressure is a ticking time bomb for heart disease—don’t wait until it’s too late!

High blood pressure 130-180+/80-89 mmHg increases your risk for having a heart attack or stroke.

In my 20+ years as a board-certified cardiologist and electrophysiologist, I’ve seen firsthand how conventional therapies for cholesterol, blood pressure and heart disease often fall short.

It's time for a game changer in the natural world.

Dr. James Kneller, cardiologist and electrophysiologist

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Dr. James Kneller
Dr. James Kneller Dr. James Kneller
No appointments needed to join our Self-Guided Program.

Our Founder

Dr. James Kneller is one of the nation’s leading cardiologist and heart rhythm specialists.

Dr. Kneller is certified by the American Board of Internal Medicine (ABIM) in clinical cardiac electrophysiology, cardiovascular disease, and internal medicine.

Professional Expertise

Board-certified cardiologist and electrophysiologist with 20+ years of experience with thousands of patients. He recieved his medical degree from McGill University (Harvard of Canada) and fellowships from Columbia University and UCLA.

Research Contributions

Dr. Kneller has authored numerous publications on electrophysiology and integrative cardiology.

Holistic Approach

Dr. Kneller has a profound interest in natural, and complimentary medicine and opened NCI as a way for him to provide patients with alternative routes of care and get access to science-based supplements for heart health.

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Created by a Cardiologist for You

“My life's mission has been to provide my patients and consumers a safe natural product line that is not only effective but more importantly, one without any of the unwanted side effects of pharmaceuticals. Just like hundreds of my clinical patients, CholestoFree® can change your life too.” -- Dr James Kneller

  • $295
    per month

    CholestoFree®: affordable

    Take a proactive, independent approach to heart health—right from home. This bundle proprietary natural dietary supplements made with science backed ingredients, (delivered to your door) e-book and webinars without the need for in-person visits or consultatations.

    Learn More
  • Platinum Concierge: limited spots

    NCI's Platinum Concierge is an ultra-exclusive, high-touch cardiology service with Dr James Kneller designed for those who demand the highest level of personalized heart health management. Prices starting at $2500. Travel to Florence, Arizona, advanced lab testing and additional tests such as EKG, Echocardiogram, etc. are not included.

    Learn More

Our Science-Backed Natural Ingredients

Discover the amazing, natural ingredients that power our products.

Niacin

Niacin

Also called Vitamin B3, is a water-soluble vitamin that helps lower LDL cholesterol and triglycerides while raising HDL cholesterol.

Guggul Lipids

Guggul Lipids

Compounds extracted from the resin of the Commiphora mukul tree, known for their cholesterol-lowering and anti-inflammatory properties.

Beet Root

Beet Root

Beetroot is one of the best natural remedies for high blood pressure (hypertension). Thanks to its high nitrate content, beets help dilate blood vessels, improve blood flow, and reduce strain on the heart.

Red Yeast Rice

Red Yeast Rice

Known as nature's statin. Studies show RYR helps lower LDL (bad) cholesterol and support heart health.

Coenzyme Q10

Coenzyme Q10

A naturally occurring antioxidant found in meat, fish, nuts, and some oils, it regulates electrolyte balance and cardiac function.

Quercetin

Quercetin

A flavonoid found in many plants, may help reduce the risk of heart disease by lowering blood pressure, reducing inflammation, and protecting the heart from damage caused by LDL cholesterol.

Curcumin

Curcumin

A compound found in the turmeric root may help improve endothelial function and reduce oxidative stress linked preventing atherosclerosis and managing cholesterol levels.

Phytosterols

Phytosterols

Naturally found in plants like nuts, seeds, and grains, help block cholesterol absorption in the gut. This supports heart health by lowering LDL cholesterol levels and promoting healthier arteries.

Boron

Boron

A trace mineral found in foods like nuts and leafy greens, supports bone strength, hormone balance, and cognitive function.

Berberine

Berberine

is a natural compound found in plants such as barberry, it is widely recognized for its ability to help regulate blood sugar levels, improve cholesterol profiles, and support metabolic and cardiovascular health.

Ginger

Ginger

A root commonly used in cooking and traditional medicine, is known for its powerful anti-inflammatory and antioxidant properties, including cardiovascular and immune health.

MCT Oil

MCT Oil

is derived primarily from coconut oil or palm kernel oil and is composed of medium-length fatty acids that are easily absorbed and rapidly converted into energy.

Milk Thistle Seed Extract

Milk Thistle Seed Extract

Is derived from the seeds of silymarin, it is well-known for its liver-protective properties, helping to detoxify the liver, reduce inflammation, and support overall liver health and function.

Resveratrol

Resveratrol

is a natural polyphenol found in foods like red grapes and red wine. It is known for supporting cardiovascular health by protecting blood vessels, reducing LDL cholesterol, and improving blood flow.

Acetyl-L-Carnitine

Acetyl-L-Carnitine

A naturally occurring compound found in foods like meat and dairy, supports energy production by transporting fatty acids into cells for fuel. It is also known to enhance cognitive function, promote brain health, and support overall cellular energy metabolism.

Amla Extract

Amla Extract

Derived from Indian gooseberries, is rich in antioxidants like vitamin C and polyphenols that support overall heart health. It helps reduce oxidative stress, manage cholesterol levels, and promote healthy blood vessels.

Ceylon Cinnamon

Ceylon Cinnamon

Is a spice derived from the inner bark of the Cinnamomum verum tree, native to Sri Lanka. It supports cardiovascular health by helping to regulate blood sugar levels, lower LDL cholesterol, and reduce inflammation.

Hydrobeef (TM)

Hydrobeef (TM)

Is a highly digestible, grass-fed beef protein powder rich in amino acids. It supports cardiovascular health by promoting muscle maintenance, improving circulation through nitric oxide production, and offering a heart-friendly, low-fat protein source.

Bone broth

Bone broth

Bone broth is rich in collagen, amino acids, and minerals that support joint and gut health. Its nutrient profile also aids in reducing inflammation and promoting overall wellness, including cardiovascular support.

Niacin

Niacin

Also called Vitamin B3, is a water-soluble vitamin that helps lower LDL cholesterol and triglycerides while raising HDL cholesterol.

Guggul Lipids

Guggul Lipids

Compounds extracted from the resin of the Commiphora mukul tree, known for their cholesterol-lowering and anti-inflammatory properties.

Beet Root

Beet Root

Beetroot is one of the best natural remedies for high blood pressure (hypertension). Thanks to its high nitrate content, beets help dilate blood vessels, improve blood flow, and reduce strain on the heart.

Red Yeast Rice

Red Yeast Rice

Known as nature's statin. Studies show RYR helps lower LDL (bad) cholesterol and support heart health.

Coenzyme Q10

Coenzyme Q10

A naturally occurring antioxidant found in meat, fish, nuts, and some oils, it regulates electrolyte balance and cardiac function.

Quercetin

Quercetin

A flavonoid found in many plants, may help reduce the risk of heart disease by lowering blood pressure, reducing inflammation, and protecting the heart from damage caused by LDL cholesterol.

NCI Treatment Programs

CholestoFree: Freedom from High Cholesterol

Cholesterol management is central to cardiovascular health, as nearly 94 million adults in the United States have high cholesterol levels. Left untreated, this condition can lead to the development of atherosclerosis ,increasing the risk of heart attacks and strokes. Despite the widespread use of statins, many patients experience side effects or fail to achieve optimal results. This gap underscores the need for a broader approach.

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Heart Muscle Support

Cardiomyopathies and congestive heart failure (CHF) affect over6.2 million Americans, leading to debilitating symptoms and reducedquality of life. While advancements in pharmaceuticals, such asbeta-blockers and ACE inhibitors, have improved outcomes, theyoften fail to address the underlying muscle weakness.

Natural therapies, including Coenzyme Q10, omega-3 fatty acids,and adaptogenic herbs, can enhance mitochondrial function andpromote muscle recovery.

Coming Soon

Rhythm Stabilization

Arrhythmias, such as atrial fibrillation (AFib) and premature ventricularcontractions (PVCs), affect over 12 million Americans. These conditionsnot only increase the risk of stroke but also contribute to anxiety andreduced quality of life. Traditional approaches, including antiarrhythmicdrugs and ablation procedures, can be effective but are often accompaniedby challenges, such as limited success rates or significant side effects.

Integrating natural remedies like magnesium, potassium, andanti-inflammatory botanicals can enhance the electrical stability of the heart.

Coming Soon

Testimonial

What Our Patients Say

Jane D
Jane D
★★★★★
For years, I felt like my concerns were dismissed by traditional doctors who only pushed prescriptions. NCI was different. Dr. Kneller took the time to listen, review my lifestyle, and guide me toward natural solutions that work alongside conventional treatments. The supplements, dietary advice, and detox protocols have made a huge difference. My heart palpitations have significantly decreased, and I feel in control of my health for the first time in years! "NCI helped me balance my heart health naturally!"
Tom K
Tom K
★★★★★
I came to NCI after struggling with fatigue, high blood pressure, and statin side effects. Their advanced testing uncovered underlying inflammation issues that no other doctor had looked at. With their natural protocol, I’ve improved my energy, reduced my dependency on medication, and feel amazing! I love that they take a whole-body approach to heart health rather than just prescribing pills.
Janice
Janice
★★★★★
I was skeptical about natural cardiology at first, but Dr. Kneller and the NCI team completely changed my perspective. Their integrative approach helped me lower my blood pressure and cholesterol naturally, without immediately resorting to medications. The personalized coaching and advanced lab testing gave me a much deeper understanding of my heart health than any doctor had before. I feel healthier and more energetic than ever. Highly recommend
Jane D
Jane D
★★★★★
For years, I felt like my concerns were dismissed by traditional doctors who only pushed prescriptions. NCI was different. Dr. Kneller took the time to listen, review my lifestyle, and guide me toward natural solutions that work alongside conventional treatments. The supplements, dietary advice, and detox protocols have made a huge difference. My heart palpitations have significantly decreased, and I feel in control of my health for the first time in years! "NCI helped me balance my heart health naturally!"
Tom K
Tom K
★★★★★
I came to NCI after struggling with fatigue, high blood pressure, and statin side effects. Their advanced testing uncovered underlying inflammation issues that no other doctor had looked at. With their natural protocol, I’ve improved my energy, reduced my dependency on medication, and feel amazing! I love that they take a whole-body approach to heart health rather than just prescribing pills.
Janice
Janice
★★★★★
I was skeptical about natural cardiology at first, but Dr. Kneller and the NCI team completely changed my perspective. Their integrative approach helped me lower my blood pressure and cholesterol naturally, without immediately resorting to medications. The personalized coaching and advanced lab testing gave me a much deeper understanding of my heart health than any doctor had before. I feel healthier and more energetic than ever. Highly recommend
Jane D
Jane D
★★★★★
For years, I felt like my concerns were dismissed by traditional doctors who only pushed prescriptions. NCI was different. Dr. Kneller took the time to listen, review my lifestyle, and guide me toward natural solutions that work alongside conventional treatments. The supplements, dietary advice, and detox protocols have made a huge difference. My heart palpitations have significantly decreased, and I feel in control of my health for the first time in years! "NCI helped me balance my heart health naturally!"

Get in Touch

Contact us to join our program and support your heart health journey.

Florence, Arizona
info@naturalcardiologyinstitute.org
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Contact Us Now