Top 10 CoQ10 Benefits, Known Side Effects, and Daily Dosage

Coenzyme Q10 is a crucial enzyme in producing energy for the cells. CoQ10 Benefits range from antioxidant activity to fertility. CoQ10 deficiency can lead to various health issues, such as fatigue, muscle weakness, and heart problems.

It’s essential to explore various ways, such as proper diagnosis, dietary changes, and supplements, to boost the levels of coenzyme Q10 in the body to address potential health concerns.

This article will teach you about CoQ10’s benefits, recommended dosage, and potential side effects. Understanding these aspects can help you make informed decisions about incorporating CoQ10 into your routine to support your overall well-being.

Key Takeaways:

  • CoQ10 benefits positively impact fertility, aging, antioxidant activity, metabolic syndrome, diabetes, neurodegenerative, and heart diseases.
  • 200 mg twice daily is the generally recommended dosage.
  • Coenzyme Q10 has low toxicity and does not cause known side effects.
  • However, talk to a healthcare professional before supplementing. Reach for natural foods high in CoQ10 first.

CoQ10 | Foods | Supplements | Side Effects | Benefits | Fertility | FAQ

What is CoQ10?

CoQ10, also known as Coenzyme Q10, is a nutrient that occurs naturally within cells.

It produces energy in the form of adenosine triphosphate (ATP) within the mitochondria, which generate energy in cells.

CoQ10 not only plays a pivotal role in energy production, but it’s also a potent antioxidant that helps shield cells from the detrimental effects of free radicals, which can cause cellular damage.

What Foods Contain CoQ10?

The richest dietary sources of CoQ10 are meat, fish, nuts, and some oils (Pravst et al. 20101).

The Best foods high in CoQ10 comprise:

  • Beef
  • Pork
  • Chicken
  • Salmon
  • Tuna
  • Peanuts
  • Walnuts
  • Almonds
  • Soybeans
seafood, nuts, and liver offer coq10 benefits

Lower levels of CoQ10 can be found in dairy products, vegetables, fruits, and cereals. Plant food sources with some CoQ10 include:

  • Spinach
  • Broccoli
  • Cauliflower
  • Sweet potatoes
  • Oranges
  • Strawberries
  • Apples
  • Brown rice
  • Oats

Therefore, a well-balanced diet with various foods can ensure you get the right amount of CoQ10 to support your overall health.

CoQ10 Dosage and Supplements

A dose of 200 mg twice daily with a meal is recommended.

Researchers consider this optimal to reach a therapeutic blood level of over 2.5 mcg/mL (Raizner 20192).

However, it is essential to note that there is no universally established minimum or maximum effective dose of CoQ10.

CoQ10 supplements are available in various dosages ranging from 30 to 600 mg per capsule.

Seeking guidance from a healthcare professional is recommended before initiating a new supplement routine, particularly if you have underlying medical conditions or are on prescription medications that may interact with CoQ10.

One of the main concerns regarding using any dietary supplement is its safety profile.

Always first reach out for natural foods high in CoQ10, such as offal.

Side Effects and Safety

Studies show that CoQ10 has low toxicity and does not cause side effects.

This makes CoQ10 a highly safe dietary supplement that can be used without any significant concerns regarding its safety (Hidaka et. al 20083)

However, it is essential to note that some individuals might encounter mild side effects like stomach upset, diarrhea, or nausea like any other dietary supplement.

Typically, these effects are mild and temporary; adjusting the dosage or consuming the supplement with food can help alleviate them (Raizner et al. 20024).

Be aware that CoQ10 might affect some medications, like blood thinners, and could impact their effectiveness.

What Are the Benefits of CoQ10?

Here are the top 10 CoQ10 benefits backed by science.

1. Mitochondrial Function

CoQ10 is an essential compound with a vital role in the mitochondrial electron transport chain, crucial for generating energy in the form of ATP.

The deficiency of CoQ10 in the body has been linked to mitochondrial deficiency syndrome, a condition that affects the function of mitochondria, leading to impaired bioenergetics.

Supplementation of CoQ10 has been shown to positively affect mitochondrial deficiency syndrome, leading to improvements in the energy production process and potentially improving overall health (Hernández-Camacho et al. 20105).

2. Antioxidant Activity

CoQ10 acts as an antioxidant in plasma membranes and lipoproteins.

Studies have shown that its antioxidant properties can contribute to the alleviation of cardiovascular disease and inflammation by protecting against oxidative stress. It also benefits energy production and overall health (Mancuso et al. 20106).

3. Cardiovascular Health

CoQ10 supplementation may offer several benefits for cardiovascular health.

Studies have shown that it may reduce the risk of heart-related complications, such as heart attacks and strokes, by improving blood flow and reducing inflammation.

Additionally, CoQ10 may improve symptoms of heart failure, such as shortness of breath and fatigue, by increasing the heart’s ability to pump blood effectively.

It has also been suggested that CoQ10 can help lower systolic blood pressure, which is the pressure in the arteries when the heart beats (Mortensen et al. 20147).

4. Aging Support

CoQ10 levels in our bodies tend to decline as we age, which may result in various health issues.

However, research has suggested that supplementation of CoQ10 may help slow down the aging process. Certain animal studies have even linked CoQ10 supplementation to extended longevity. Moreover, CoQ10 can confer several health benefits, especially in elderly individuals (Hernandez-Camacho et al. 20188).

5. Neurodegenerative Diseases Prevention

CoQ10 supplementation has been explored for its potential benefits in neurodegenerative diseases.

While the research in this area is still inconclusive, some studies have suggested that CoQ10 could positively impact conditions such as Parkinson’s.

Specifically, this supplement is believed to help reduce oxidative stress and inflammation, two critical factors in the development and progression of neurodegeneration.

However, more extensive research is needed to fully understand the potential benefits of CoQ10 supplementation for these conditions (Schulz et al. 19959).

6. Metabolic Syndrome and Diabetes Treatment

CoQ10 has been proposed as a potential treatment for metabolic syndrome and type 2 diabetes.

It can improve insulin resistance, reduce inflammation, and enhance lipid metabolism.

However, despite promising results from preclinical studies, current evidence from clinical trials is inconclusive, and more research is needed to determine its efficacy.

Specifically, more extensive and longer-term studies are necessary to establish the optimal dose, duration, and safety profile of CoQ10 supplementation as an adjuvant therapy for metabolic disorders (Moradi et al. 201610).

7. Fertility Support

Studies have shown that CoQ10 supplementation can positively impact male fertility by improving semen parameters and sperm health.

In particular, research suggests that men who take CoQ10 supplements may experience improvements in sperm count, motility, and morphology.

As a result, CoQ10 may be considered a valuable supportive measure for individuals seeking to improve their chances of conceiving (Arcaniolo et al. 201411).

CoQ10 Benefits for Fertility and Women

Coenzyme Q10 is best known for its impressive benefits regarding female fertility and health.

8. Pregnancy Rates

CoQ10 supplementation has been associated with increased pregnancy rates in women undergoing assisted reproductive technology (ART) procedures.

A meta-analysis of randomized-controlled trials concluded that oral supplementation of CoQ10 may increase clinical pregnancy rates (CPR) in women undergoing ART procedures (Florou et al. 202012).

9. Antioxidant Properties

Coenzyme Q10 is a natural antioxidant crucial in reducing oxidative damage by neutralizing free radicals.

By doing so, CoQ10 can help improve the overall health and functionality of reproductive systems, potentially increasing the chances of conception (Florou et al. 202013).

10. Impact on Ovarian Response

Some of these recent studies have suggested that CoQ10 may positively impact ovarian function and improve ovarian response to stimulation, ultimately leading to enhanced reproductive performance in women.

The reason might be CoQ10’s role in providing energy to cells, including ovarian follicles, responsible for producing and releasing eggs (Yangying Xu et al. 201814).

Frequently Asked Questions (FAQ)

What happens when you take CoQ10 everyday?

Taking CoQ10 every day can support heart health, boost energy levels, and act as an antioxidant. It’s commonly used as a supplement for various health benefits.

What vitamins should I not take with CoQ10?

High doses of vitamin K may interfere with the blood-thinning effects of CoQ10. It’s advisable to consult with a healthcare professional for personalized advice. However, CoQ10 generally interacts well with most vitamins.

What medications should not be taken with CoQ10?

CoQ10 may interact with blood-thinning medications like warfarin and certain blood pressure medications. Consult your healthcare provider before combining CoQ10 with any prescription drugs.

Is it OK to take vitamin D3 and CoQ10 together?

It is generally considered safe to take vitamin D3 and CoQ10 together. They serve different bodily functions, and no significant interaction exists. However, individual health conditions may vary, so consulting a healthcare professional is recommended.


1Pravst, I., Zmitek, K., & Zmitek, J. (2010). Coenzyme Q10 contents in foods and fortification strategies. Critical reviews in food science and nutrition50(4), 269–280.

2Raizner, A. E. (2019). Coenzyme Q10. Methodist DeBakey Cardiovascular Journal, 15(3), 185-191.

3Hidaka, T., Fujii, K., Funahashi, I., Fukutomi, N., & Hosoe, K. (2008). Safety assessment of coenzyme Q10 (CoQ10). BioFactors (Oxford, England)32(1-4), 199–208.

4Raizner, A. E. (2019). Coenzyme Q10. Methodist DeBakey Cardiovascular Journal, 15(3), 185-191.

5Hernández-Camacho, J. D., Bernier, M., López-Lluch, G., & Navas, P. (2018). Coenzyme Q10 Supplementation in Aging and Disease. Frontiers in Physiology, 9.

6Mancuso, M., Orsucci, D., Volpi, L., Calsolaro, V., & Siciliano, G. (2010). Coenzyme Q10 in neuromuscular and neurodegenerative disorders. Current drug targets11(1), 111–121.

7Mortensen, S. A., Rosenfeldt, F., Kumar, A., Dolliner, P., Filipiak, K. J., Pella, D., Alehagen, U., Steurer, G., Littarru, G. P., & Q-SYMBIO Study Investigators (2014). The effect of coenzyme Q10 on morbidity and mortality in chronic heart failure: results from Q-SYMBIO: a randomized double-blind trial. JACC. Heart failure2(6), 641–649.

8Hernández-Camacho, J. D., Bernier, M., López-Lluch, G., & Navas, P. (2018). Coenzyme Q10 Supplementation in Aging and Disease. Frontiers in Physiology, 9.

9Schulz, J. B., & Beal, M. F. (1995). Neuroprotective effects of free radical scavengers and energy repletion in animal models of neurodegenerative disease. Annals of the New York Academy of Sciences765, 100–118.

10Moradi, M., Haghighatdoost, F., Feizi, A., Larijani, B., & Azadbakht, L. (2016). Effect of Coenzyme Q10 Supplementation on Diabetes Biomarkers: a Systematic Review and Meta-analysis of Randomized Controlled Clinical Trials. Archives of Iranian medicine19(8), 588–596.

11Arcaniolo, D., Favilla, V., Tiscione, D., Pisano, F., Bozzini, G., Creta, M., Gentile, G., Menchini Fabris, F., Pavan, N., Veneziano, I. A., & Cai, T. (2014). Is there a place for nutritional supplements in the treatment of idiopathic male infertility?. Archivio italiano di urologia, andrologia : organo ufficiale [di] Societa italiana di ecografia urologica e nefrologica86(3), 164–170.

12Florou P, Anagnostis P, Theocharis P, Chourdakis M, Goulis DG. Does coenzyme Q10 supplementation improve fertility outcomes in women undergoing assisted reproductive technology procedures? A systematic review and meta-analysis of randomized-controlled trials. J Assist Reprod Genet. 2020 Oct;37(10):2377-2387. doi: 10.1007/s10815-020-01906-3. Epub 2020 Aug 7. PMID: 32767206; PMCID: PMC7550497.

13Florou P, Anagnostis P, Theocharis P, Chourdakis M, Goulis DG. Does coenzyme Q10 supplementation improve fertility outcomes in women undergoing assisted reproductive technology procedures? A systematic review and meta-analysis of randomized-controlled trials. J Assist Reprod Genet. 2020 Oct;37(10):2377-2387. doi: 10.1007/s10815-020-01906-3. Epub 2020 Aug 7. PMID: 32767206; PMCID: PMC7550497.

14Xu Y, Nisenblat V, Lu C, Li R, Qiao J, Zhen X, Wang S. Pretreatment with coenzyme Q10 improves ovarian response and embryo quality in low-prognosis young women with decreased ovarian reserve: a randomized controlled trial. Reprod Biol Endocrinol. 2018 Mar 27;16(1):29. doi: 10.1186/s12958-018-0343-0. PMID: 29587861; PMCID: PMC5870379.

Mag. Stephan Lederer, MSc. is an author and blogger from Austria who writes in-depth content about health and nutrition. His book series on Interval Fasting landed #1 on the bestseller list in the German Amazon marketplace in 15 categories.

Stephan is a true man of science, having earned multiple diplomas and master's degrees in various fields. He has made it his mission to bridge the gap between conventional wisdom and scientific knowledge. He precisely reviews the content and sources of this blog for currency and accuracy.

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