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The Critical Role of Zinc for Heart Health and More

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Foods High in Zinc

There is 1 mineral that’s said to be behind a vast majority of health problems.

Scientists estimate that 80-90% of the population is below optimum levels.

But an estimated 1.1 billion people are dangerously deficient in this mineral.

It’s Zinc.

Fortunately, if you are dangerously deficient in zinc, you get warning signs.

1. Sleep issues – those with insomnia have significantly lower levels of zinc

2. Immune issues – prone to colds, flus, and have a fragile immune system

3. Low sex drive – you can’t make the necessary hormones for libido

4. Bad moods – your hormones are totally out of whack without zinc

5. Overweight – your metabolism is slow without adequate levels of zinc

6. Teeth issues – gums bleed easily, and there is tooth decay & yellow teeth

7. Nails – vertical or horizontal lines on your nails, or spots, lines or spooning

8. Wrinkles – collagen and retinol need zinc to prevent premature wrinkles

9. Acne – unexplained breakouts occur in people with low serum zinc levels

10. Sex hormones – men low testosterone / women poor menstrual cycles

11. Infertility – Without the proper male/female hormones, you’re infertile

12. Muscles – poor athletic / sport recovery, and difficulty building muscles

13. Low energy – related to hormones, metabolism, and mitochondria

14. Diabetes – blood sugar imbalances occur in the absence of zinc

15. Hair – becomes brittle and lifeless, and in many cases starts to fall out

16. Panda eyes – the dark circles under the eyes are linked to zinc deficiency

All of these factors have been proven by over 1,000 clinical scientific studies.

But sometimes, zinc deficiency shows up as cardiovascular disease. 

Zinc is an essential micronutrient that plays a crucial role in cardiovascular health. Several studies have explored its significance regarding cardiovascular diseases (CVDs), revealing the potential consequences of zinc deficiency on heart health.

Read on to learn how zinc affects the heart and how to make sure your zinc levels are optimized. 

Zinc Deficiency and Heart Failure

A comprehensive review highlighted the impact of zinc on the cardiovascular system through its influence on oxidative stress. The study underscored various pathways leading to zinc deficiency in heart failure (HF), including impaired micronutrient consumption, a hyper-inflammatory state, and side effects of heart failure pharmaceuticals. Intriguingly, improvements in heart function were observed with zinc supplementation in patients with HF, suggesting a beneficial role of zinc in this condition, according to a study. 

Zinc and Cardiovascular Disease

This research delved into the biological mechanisms by which zinc influences heart health. It outlined several pathways and molecular mechanisms, highlighting zinc’s integral role in cardiovascular functioning and the potential risks associated with zinc deficiency including heart attacks and coronary calcification.

Zinc Deficiency and Cellular Oxidative Stress

Another pivotal study focused on the role of zinc in managing oxidative stress, a key factor in the development of cardiovascular diseases. It shed light on the molecular aspects of zinc transport and its regulation in heart and vascular cells, demonstrating the complex interactions between zinc and cellular components in the context of heart health.

Association of Zinc and Copper Status with CVDs

There is an intricate relationship between zinc and other minerals. A review study examined the link between zinc and another essential mineral, copper, in the context of cardiovascular diseases. This research suggested that deficiencies in these minerals could increase the risk of various heart conditions, including coronary heart disease and heart failure. The study also discussed methods for assessing zinc and copper levels in the body, underscoring their relevance in evaluating cardiovascular risk. I lectured on this topic in Las Vegas in 2022 at the largest holistic health event in the world. 

Test, Don’t Guess

At Natural Heart Doctor, we believe that testing zinc levels inside the cell is a very important strategy for heart health. The Vibrant Micronutrient panel does just that. You can order thistest as a standalone, or as part of Level 1 and Level 2 testing. 

Understanding zinc levels in relationship to the other minerals, vitamins and nutrients is crucial. 

Best Zinc (and copper and everything else) Sources

The best sources of zinc come from nature. Think wild seafood and grass-fed animals, including their organs. Chicken eggs too. 

For supplements, consider 6 caps per day of Kickstart My Heart and 6 caps per day of The Whole Fish

We also carry zinc supplements on our website, but prefer food based strategies first. 

Got questions? Sign up for a free discovery call to learn how we can help you.


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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 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.