12 things in your home that Lead to Heart Disease
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Best Supplements to Slow Down Heart Rate

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In this post, we discuss the best natural supplements to slow down your heart rate.

The human heart is a remarkable organ, beating between 60 and 100 times per minute at rest. Taking cues from the rest of the body, the heartbeat fluctuates to accommodate for exercise, emotions, the environment around us, and even our breathing.

For instance, during exercise, the heart speeds up to ensure that the muscles receive enough oxygen to do their job. Likewise, emotions such as anxiety or anger can trigger the autonomic nervous system to release hormones that speed the heart rate to prepare for the possibility of a need to fight or flee. These situational experiences trigger a healthy and normal heart rate response, and the heart then quickly returns to normal. 

However, what happens when the heart rate is abnormally high for a seemingly unknown cause or a prolonged period? Tachycardia is the term used for a heart that pumps faster than 100 beats per minute (BPM). Over time, a fast heart rate can weaken the heart muscle and make it more susceptible to dangerous diseases like heart failure. 

If your ticker tends to trend higher than average, consider the following five supplements to naturally lower your heart rate and bring your body back to a state of balance. 


Magnesium is a potent, multi-purpose mineral found in a variety of foods. Unfortunately, in today’s world, consuming a healthy diet is often not enough to meet the nutritional needs of this critical micronutrient.

The use of pesticides and other agricultural chemicals has resulted in dramatically lowered magnesium availability in our food. Additionally, studies show that processing or refining food reduces magnesium content by nearly 85 percent.  

Moreover, as we age, magnesium absorption decreases. Stress, medications, and certain health conditions can also deplete magnesium stores in the body. As a result, many individuals need to supplement magnesium to keep levels optimal. 

Magnesium has potent antiarrhythmic effects, helping to regulate heart rhythm. In addition, it plays an essential role in cellular function, helping transport other electrolytes in the cells. As a counterpart of calcium, magnesium helps muscle cells to relax. Individuals with magnesium deficiency commonly experience tachycardia, heart palpitations, and other cardiovascular abnormalities. 

There are several forms of magnesium, all of which serve different roles in the body. We recommend Magne 5, which contains five kinds of magnesium, to support normal heart rate and rhythm.


Much like magnesium, potassium plays a role in every single beat of the heart. But unfortunately, the average American is deficient in this vital mineral. Declining potassium concentration in food sources, over-consumption of high-sodium processed foods, and certain medications have depleted potassium reserves for 9 out of 10 Americans. 

Potassium is vital for maintaining a healthy and consistent heart rate. Not only does it help to keep sodium levels in check, but because of its vagolytic effect, potassium helps to maintain a regular heart rate. When given with magnesium, potassium supplements have been shown to lower dangerously high heart rates

Studies show that low potassium levels, also called hypokalemia, may cause calcification and stiffening of the arteries, thus increasing heart rate. A recent New England Journal of Medicine study found that those with the highest potassium levels had a 31 percent lower risk of cardiovascular events than those with the lowest levels. 

Potassium Boost, an exclusive potassium and mineral powder supplement, restores optimal potassium levels in the cells, thus lowering heart rate and supporting healthy cardiovascular function. A high heart rate responds well to the formula’s elemental potassium and magnesium. 


Most people know lithium as a mood stabilizer used to treat manic episodes. However, very few people know that lithium is an important naturally-occurring dietary mineral in grains and vegetables. When used in low doses that mimic those found in food and water, lithium serves a vital role in heart health. 

Unfortunately, as with magnesium and potassium, we do not get enough lithium in our diet. Lithium is required for vitamin B12, folate transport, and many other biochemical processes in the body. Studies have found that a deficiency in natural lithium can lead to defects in growth and development.  

Unfortunately, most studies involving lithium’s relationship to the heart involve lithium toxicity due to too much lithium. However, in small doses, such as those in Cardio-Lith supplement, lithium slows heart rate, decreases stress, and calms the sympathetic response. 


Berberine might just be the “it” supplement for cardiovascular health. Found in several plants such as goldenseal, goldthread, tree turmeric, and European barberry, this natural plant alkaloid helps to strengthen the heartbeat. 

Berberine has been used for thousands of years in Chinese medicine but has gained popularity in Western medicine for its cardiovascular benefits. Multiple studies have found that berberine protects against high blood pressure, high cholesterol, insulin resistance, and heart arrhythmias. In addition, researchers have found that berberine prevents tachycardia and other arrhythmias. 

Berberine, or Berbe, helps keep the heart rate within normal range while simultaneously reducing inflammation, controlling blood sugar, and preventing heart disease. 


A flowering shrub of the rose family, Hawthorn is one of the oldest known medicinal plants. Used since the 1st century to treat cardiovascular problems, Hawthorn is packed with flavonoids. One such flavonoid, proanthocyanidin, is particularly beneficial for the heart. 

Hawthorn is beneficial for lowering the heart rate and reducing the risk of arrhythmias. Hawthorn dilates the coronary arteries, thus improving flood flow to the heart. It also improves the strength of cardiac muscle contractions. This adaptogen is commonly used to treat tachycardia. 

One 500 mg capsule of Hawthorn Extract works to lower inflammation, blood pressure, and heart rate. 

Help your heart relax naturally

Having a prolonged high heart rate is dangerous and can increase the risk of heart attack, stroke, and cardiovascular disease, all while shortening life expectancy. 

Unfortunately, most doctors immediately turn to heavy-duty pharmacological drugs to address tachycardia. Unfortunately, these medications come with numerous dangerous side effects. Thankfully, mother nature has provided us with all the nutrients we need to support the 100 Year Heart. 

Eat well, Live well, Think well



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Dr. Keith Smigiel is a regenerative medicine physician and pain management specialist. He takes an integrative approach to medicine, focusing on customized solutions tailored to individual needs. Using advanced, non-surgical treatments, Dr. Smigiel stimulates your body’s ability to naturally heal itself.

Dr. Smigiel helps people suffering from conditions such as chronic pain and erectile dysfunction, to hair loss and weight gain. Combining treatments such as PRP Therapy, Ozone, Neural Prolotherapy, and IV Infusions with functional rehabilitation, he helps you look and feel better.

He heals the body, instead of just treating the symptoms!

With his professional qualifications as a certified family nurse practitioner, a doctor of chiropractic, and a fellow of the International Academy of Medical Acupuncture, Dr. Smigiel offers patients comprehensive care from a broad perspective of conventional and alternative medicine. He also has extensive experience in functional rehabilitation and chronic pain management.

Dr. Smigiel is married to Angela and has two children, Sophia and Larz. When he’s not busy helping patients, he enjoys hiking, mountain biking, motocross, and boating.

About Dr. James Kneller, M.D., Ph.D., FHRS

Dr. James Kneller, M.D., Ph.D., FHRS

Dr. James Kneller is one of the nation’s leading heart rhythm specialists. Dr. Kneller is certified by the American Board of Internal Medicine (ABIM) in Clinical Cardiac Electrophysiology, Cardiovascular Disease, and Internal Medicine.

As a Fellow of the Heart Rhythm Society (FHRS) and Certified Cardiac Device Specialist (CCDS), Kneller provides comprehensive patient care, combining best medical practice with invasive procedures using state-of-the-art technologies to treat heart rhythm disorders.

Beyond guideline-directed therapies, Kneller is passionate about optimized personal health. With a deep interest in complimentary alternative medicine (CAM), he strives to reduce the need for pharmaceuticals, invasive procedures, and exposure to harmful radiation. With Natural Heart Doctor, he strives to help each and every client to Live Well, Eat Well, and Think Well to attain their 100-year heart!

About Dr. Lauren Lattanza NMD, FACC

Dr. Lattanza Office Visit with Patient

As a Naturopathic Physician, I am trained to treat the whole person and get to the root cause of disease.

I went to Arizona State University where I graduated with a bachelor’s degree in psychology with a depth in physiology and minor in Spanish. After my undergraduate degree I was working on prerequisite classes towards medical school, which is when I came to learn that my values identified best with the principles of naturopathic medicine. I knew that I wanted to help patients identify the causes of disease and be able to offer treatments which would improve their health rather than simply treating symptoms.

I dedicated the next 4 years to the Southwest College of Naturopathic Medicine in Tempe, Arizona where I attained my Doctorate of Naturopathic Medicine. I served as Class President all 4 years, Board of Trustees – Student Trustee, spoke as the Club President for our branch of Toastmasters, and was voted by my peers and attending physicians to earn the Outstanding Leadership Award for the Class of 2020. Throughout medical school I took it upon myself to work alongside MDs, DOs, chiropractors, and functional medicine practitioners in addition to naturopathic physicians.

As a Spanish speaking student, I was able to volunteer with community clinics around Phoenix and provide free healthcare to low-income families. Due to this combined exposure, I came to find my passion in treating cardiometabolic and digestive disorders that are all too common, yet largely preventable. I took the opportunity to learn the broad spectrum of healthcare so I can ensure that I am able to provide my patients with the best options.

About Dr. Jack Wolfson DO, FACC

Dr. Wolfson Office Visit with Patient

Dr. Jack Wolfson is a board-certified cardiologist, Amazon best-selling author, husband, father, and the nation’s #1 Natural Heart Doctor.

For more than two decades, more than one million people have enjoyed the warmth, compassion, and transformational power of his natural heart health courses and events.

Dr. Wolfson is the founder of Natural Heart Doctor Scottsdale, his heart health practice in Arizona, and Natural Heart Doctor, an online resource center with natural health information. Doctors from across the globe reach out to Dr. Wolfson for training and education in holistic health practices.

He has been named one of America’s Top Functional Medicine Doctors and is a five-time winner of the Natural Choice Awards as a holistic M.D. Dr. Wolfson’s work has been covered by more than 100 media outlets, including NBC, CNN, and the Washington Post. His book “The Paleo Cardiologist: The Natural Way to Heart Health” was an Amazon #1 best-seller.

Dr. Wolfson and his wife Heather have four children and are committed to making the world a better place to live. They provide for those in need (including animals) and support natural health causes through their philanthropic efforts.


Our chiropractor is an expert at adjustments and holistic chiropractic care and works closely in conjunction with the other health care experts at Natural Heart Doctor.

Call (480) 535-6844 for details and scheduling.

IV Therapy

We use specially formulated natural vitamins and minerals that are injected into a vein to prevent or treat dehydration. Ideal for people in Arizona.

Call (480) 535-6844 for details and scheduling.


Stimulate your body’s natural healing abilities and promote physical and emotional well-being with acupuncture at Natural Heart Doctor.

Call (480) 535-6844 for details and scheduling.

Health Coaching

Our health coaches use evidence based skillful conversation, clinical interventions, and strategies to engage you actively and safely in health behavior changes.

Call (480) 535-6844 for details and scheduling.

Cardio Tests

We use the most advanced testing in the world to assess heart health and to identify the root cause of your health issues.

Call (480) 535-6844 for details and scheduling.

Office Visits

Schedule an office visit with one of our cardiologists, holistic physicians, chiropractor, or health coaches.

Call (480) 535-6844 for details and scheduling.

Frequently Asked Questions

I’d like to receive an online second opinion from Natural Heart Doctor. What do I do next?

You can initiate a second opinion online through our website at any time. To begin, select the team member you’d like to speak with and open an account.

Click here for cardiologist Dr. Jack Wolfson.

Naturopathic Medical Doctor Dr. Lauren Lattanza. Get details.

Naturopathic Medical Doctor Dr. Tonia Rainier. Get details.

Click here for  Natural Heart Doctor Health Coach.

Alternatively, you can email health@naturalheartdoctor.com. A member of our care team will help guide you through the process of starting a second opinion.

What is the cost of a Natural Heart Doctor Online Second Opinion?

The cost for most second opinions varies by team member. This fee includes information collection, a phone or video consultation, a second opinion from a Natural Heart Doctor specialist and guidance throughout the process from your personal Care Team at Natural Heart Doctor.

Cardiologist Dr. Jack Wolfson’s Second Opinion Fee is $1500.

Holistic Physician’s Dr. Lauren Lattanza’s Second Opinion Fee is $250.

Naturopathic Physician Dr. Tonia Rainier’s Second Opinion Fee is $250.

Note: We apply the Online Second Opinion Call fee as a credit to any future consultations with Natural Heart Doctor, should you choose them.

Will my insurance cover the cost of a Natural Heart Doctor Online Second Opinion?

Most likely, no. Most health plans do not cover online second opinions or consultations. You are responsible for the cost of our second opinion. Natural Heart Doctor cannot file a claim with your insurance carrier, nor can we provide a procedure (CPT) code for this service.

What is the timeline to receive an online second opinion?

We do our best to schedule your second opinion as quickly as possible. Typically, it takes 5 to 7 business days after your information has been collected to receive your phone or video online second opinion.

What information do you need in advance of our call?

Our office will send you a short questionnaire to complete and return. We DO NOT need your complete medical records.

How many questions can I ask the expert during our call?

You may ask a maximum of five questions. This is to ensure that the expert has sufficient time to devote to each question. All questions must be finalized before your online meeting.

What should I expect to receive once my second opinion is complete?

You will receive a summary of our discussion along with our second opinion. The second opinion will be in written form. After you have reviewed the second opinion, a Natural Heart Doctor clinician will follow up with you by phone to address general medical questions about the information provided in the second opinion.

What if I have follow-up questions for the expert after I have reviewed my second opinion?

If you have a clarifying question about an expert’s response to one of the questions in your second opinion, and the Natural Heart Doctor clinician is unable to address it, then you may request a follow up session for an additional fee. 

Is my medical and payment information secure?

Natural Heart Doctor is strongly committed to protecting the privacy and security of all our patients. Our website meets all federal requirements for protecting personal health information under the Health Insurance Portability and Accountability Act (HIPAA). All financial transactions are processed by Natural Heart Doctor securely using industry standard payment processing tools.

I would rather visit Natural Heart Doctor for an in-person appointment. What should I do next?

If you would prefer an in-person appointment at Natural Heart Doctor instead of an online second opinion, please call (480) 535-6844 for details and scheduling.

Can I schedule a follow up appointment with the specialist who provided my online second opinion?

Yes, we’re happy to help you on an extended basis. Our clinician can discuss options with you when presenting our second opinion summary.