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Coenzyme Q10 And Its Effects On The Human Body

4 min read |
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CoQ10, also known as Coenzyme Q10, is one of the most important nutrients in the human body. Found mainly in cells of the heart and liver, it plays a vital role in converting the food we eat into energy that the body can use.

This enzyme also helps support a number of other essential functions, including immune function and cell repair processes that are vital to healthy aging. Here’s how CoQ10 works and why you should add it to your diet today!

What is CoQ10?

CoQ10 is generally made in every cell in your body. It is required to maintain energy production within the cells. The highest concentrations are found in the liver, kidney, & heart because of the high amount of energy required for these organs to function.

It acts like an antioxidant. An antioxidant is actually any substance which helps to reduce cell damage, or oxidation. Oxygen breaks down atoms. Antioxidants may compensate for the breakdown by donating electrons to the resulting off-balance atoms, known as free radicals.

How Does It Benefit Human Body?

Coenzyme Q10 is a nutrient that plays an essential role in cellular energy production. It helps produce adenosine triphosphate (ATP), which is a molecule that delivers chemical energy within cells for various processes, such as muscle contraction, nerve signalling, and blood circulation. It’s also important for heart health.(1)

Why Should We Take It?

Coenzyme Q10 is a substance that occurs naturally in our body. It’s used in energy production, cell growth, and brain function.

What Are The Side Effects of Coenzyme Q10?

Although CoQ10 is generally regarded as safe, some people do report side effects. The most common of these are stomach discomfort, skin rashes and headaches. More severe symptoms include nausea, vomiting, fatigue, headache, muscle pain and palpitations.

If you experience any of these or other negative reactions when taking CoQ10 supplements, it’s best to discontinue use until you can speak with your doctor.

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Read Now: What is Creatine, Advantages and Disadvantages

How Does Coenzyme Q10 Work?

Coenzyme Q10 (CoQ10) is an enzyme that is naturally produced by our bodies. It acts as a catalyst in mitochondria, which are responsible for producing ATP (our bodies’ energy currency). CoQ10 levels in our body decline with age, so people over 40 often experience a natural deficiency.

Supplements.

Coenzyme-Q10
Coq10 and Heart Health

If you’re looking to boost your energy levels, supplementing with CoQ10 may be worth a try. But does it work? And what does it do? Let’s take a closer look.

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Step 1. Learn about CoQ10 and heart health – The first step toward learning about how CoQ10 works is understanding where it comes from and how we get it. Vitamin supplements aren’t enough: You’ll need to eat nutrient-rich foods containing coenzyme Q9.

Step 2. Learn about heart health and cholesterol – There’s some evidence that taking a statin drug can reduce cardiovascular risk; however, not everyone responds positively.(2)

Bottom Line.

So, antioxidants like CoQ10 assist to re-establish a delicate balance within body cells. But CoQ10 levels in our body decline with the growing age, diabetes, use of statin drugs, use of certain diabetic drugs, and some psychiatric medications. Always consult with your doctor if a CoQ10 supplement can be beneficial to your heart.

+2 Sources

Freaktofit has strict sourcing guidelines and relies on peer-reviewed studies, educational research institutes, and medical organizations. We avoid using tertiary references. You can learn more about how we ensure our content is accurate and up-to-date by reading our editorial policy.

  1. Coenzyme Q10: The essential nutrient; https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3178961/
  2. Statins for the primary prevention of cardiovascular disease ; https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6481400/

Last reviewed on April 11, 2026

How we reviewed this article:

ⓘ Sources

FreakToFit follows strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and reputable medical organizations. We only use high-quality, credible sources to ensure the accuracy and integrity of our content.

🕖 History

Our experts continually monitor the health and wellness space, and we update our articles when new information becomes available

Current Version

Written by Nebadita (Diet & Health Expert), M.S

Reviewed by Michael MacIntyre

Updated: Apr 11, 2026

Aug 15, 2022

Written by Nebadita (Diet & Health Expert), M.S

Reviewed by Michael MacIntyre

The information shared in this article is for educational purposes only and should not replace professional medical consultation. Always speak with a qualified healthcare provider about any health concerns or treatments. Know More

Nebadita is experienced in the field of nutrition, health, fitness, and more. Nebadita earned Master Degree from National Institute of Nutrition, Hyderabad and currently serving in the Eastern branch of ICMR. Know More. Learn about our editorial process..
Nutritionist
338 article(s) publishedNutrition
Michael MacIntyre, MD, is a board-certified psychiatrist practicing general psychiatry at the Veterans Affairs Healthcare System in Los Angeles. He is a clinical instructor of...
Psychiatrist
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