What is Coenzyme Q10: Benefits, Dosage, and Side Effects

Dr. Rajkumar Vinod Desai

Medically reviewed by

Dr. Rajkumar Vinod Desai

General Physician

7 min read


There are multiple benefits of Coenzyme Q10 and no severe side effects. CoQ10 can be taken as supplements and in foods too. Read the blog to know all the information about CoQ10 usage and dosage.   

Key Takeaways

  • A vitamin-like substance known as Coenzyme Q10 appears to provide several health advantages
  • It functions as an antioxidant and is involved in cellular energy production
  • These qualities can be used to preserve cells and prevent and treat various chronic diseases

The heart, liver, kidneys, and pancreas have the highest Coenzyme Q10, an antioxidant your body naturally makes in your cells. Coenzyme Q10 is a nutrient that your cells utilize for both growth and damage prevention. As you become older, your body produces less Coenzyme Q10. Additionally, it has come out that CoQ10 levels are lower among those who suffer from illnesses including heart disease, brain disorders, diabetes, and cancer and those who take statins, which lower cholesterol.

Fortunately, you can also acquire Coenzyme Q10 from diet or supplements. Meat, fish, and nuts all contain CoQ10. However, the amount of CoQ10 in these dietary sources is insufficient to significantly raise the level of CoQ10 in your body. Nutritional supplements containing Coenzyme Q10 are available as wafers, chewable pills, liquid syrups, capsules, and IVs. Migraine headaches and cardiac diseases are treatable and preventable with Coenzyme Q10. 

CoQ10 and other medications do not combine well. Individuals must tell their health care providers about all drugs they are taking. The US Food and Drug Administration does not regulate CoQ10 because it is a dietary supplement rather than a medicine. [1] It is unclear if low CoQ10 levels lead to certain disorders or are a consequence. There is no doubt that Coenzyme Q10 has a wide range of health advantages, as proven by a wide range of studies. 

What is Coenzyme Q10? 

Coenzyme Q10 is created by your body and stored in your cells' mitochondria. As a part of the endogenous antioxidant system, the mitochondria are responsible for energy production. Additionally, they protect cells from harmful bacteria and viruses and oxidative damage. The Q and 10 in Coenzyme Q10 are the chemical groups that make up the compound. The following are additional names for CoQ10: 

  • Q10  
  • Vitamin Q10 
  • Ubiquinone. 
  • Ubidecarenone

Age causes a decrease in Q10 production. As a result, this molecule appears to be lacking in older adults. However, there are also additional reasons for the lack of CoQ10, such as: 

  • Nutritional inadequacies, like a lack of vitamin B6 
  • Genetic defects in CoQ10 synthesis or utilization 
  • Increasing demands placed on tissues as a result of illness 
  • Diseases of the mitochondria 
  • The oxidative strain brought on by aging 
  • Adverse effects of statin therapy
Coenzyme Q10 benefits

According to research, Vitamin Q10 serves some essential functions in your body. A coenzyme aids in an enzyme's function. An enzyme is a protein that quickens the pace of chemical reactions in the body's cells. Its main job is to assist your cells in producing energy. It contributes to adenosine triphosphate (ATP) production, necessary for transferring energy within cells. 

Its additional vital function is to act as an antioxidant and defend cells from oxidative harm. Antioxidants shield cells from harmful substances known as free radicals. Oxidative damage happens by too many free radicals and can prevent cells from functioning normally. Numerous illnesses are known to be brought on by this. 

Unsurprisingly, various chronic diseases are related to low levels of Q10, given that ATP is vital for all bodily processes and oxidative damage is detrimental to cells. 

Each cell in your body has Coenzyme Q10. The heart, kidneys, pancreas, and liver are among the organs with the highest concentrations, as they have the most significant energy requirements. The lungs contain the least amounts. It is like other pseudovitamin compounds necessary for living but not necessarily a dietary supplement. 

Additional Read: Best Diet Plan For Weight Loss

How Much Dosage Of Coq10 Should You Take?

There is no defined ideal dosage of Q10. In studies, adults have received Coenzyme Q10 doses ranging from 50 to 1,200 mg, often spread out over the day. Due to Vitamin Q10 on food for absorption, the recommended dose is typically 90 mg for a low dose and 200 mg for a larger dose, taken once daily with a meal. With Coenzyme Q10 supplementation, dose dependence is rare, and 90 mg is typically the most economical amount. However, supplementing with CoQ10 typically doesn't have a significant therapeutic impact (especially when done with the mindset of "just in case," which infuses multivitamin supplementation). 

The oxidized form (ubiquinone) and the reduced form (ubiquinol) of Coenzyme Q10 are available as supplements. Both appear equally effective for raising the body's overall levels of CoQ10. The term ‘total CoQ10’ refers to the total of both forms since CoQ10 can easily switch between them as it works in the body.

What Are The Benefits Of Coenzyme Q10?

Heart Problems:

Congestive heart failure symptoms have proven to be effective with CoQ10. In addition, despite conflicting evidence, CoQ10 may help lower blood pressure. Research has also shown that CoQ10 may help patients recover after bypass and heart valve procedures when paired with other nutrients


Although additional research is required, some evidence indicates that Coenzyme Q10 may assist patients with diabetes lower their total and low-density lipoprotein (LDL) cholesterol levels, reducing their heart disease risk

Parkinson's condition:

According to recent research, even high doses of CoQ10 don't seem to reduce symptoms in Parkinson's patients

Statins cause myopathy:

According to several studies, CoQ10 may lessen the occasional muscle soreness and weakness brought on by statin use


According to some research, CoQ10 may reduce the frequency of these headaches

Physical exercise:

Since Vitamin Q10 is involved in the generation of energy, it's thought that taking this supplement could enhance your physical performance. However, the outcomes of this research have been conflicting

Additional Read: What Foods to Avoid with Diabetes

Moreover, preliminary clinical research indicates that CoQ10 might: 

  • Boost immune system health in those with HIV or AIDS 
  • Boost sperm motility to increase male fertility 
  • Improve angina patient's capacity for exercise 
  • Protect the Lungs 
  • Treat gum conditions
Coenzyme Q10

Can We Get It Naturally From Foods?

Coenzyme Q10 is a simple supplement, but it is also present in several foods. Nevertheless, the levels of Q10 in naturally occurring foods are significantly lower than those in supplements. In both dietary supplements and food forms, VitaminQ10 seems to be absorbed similarly. CoQ10 is present in the following foods: 

  • Heart, liver, and kidney meat 
  • Some muscle meats like pork, beef, and chicken 
  • Fatty fish: sardines, mackerel, herring, and trout 
  • Vegetables: broccoli, cauliflower, and spinach 
  • Fruits for the heart: Strawberries and oranges 
  • Legumes: peanuts, soybeans, and lentils 
  • Seeds and nuts: pistachios and sesame seeds 
  • Oils: Canola and soybean oil
Additional Read: How to Use Canola Oil

Side Effects Of Coenzyme Q10

There are no severe side effects of CoQ10. The following are the mild side effects of the VitaminQ10 that are known: 

  • Elevated liver enzyme levels 
  • Nausea 
  • Heartburn 
  • Headache 
  • Aches and pains in the upper abdomen 
  • Dizziness 
  • Rashes 
  • Appetite loss 
  • Having trouble falling or staying asleep 
  • Feeling tired 
  • Feeling irritated 
  • Light-sensitive

Importantly, patients were not monitored long-term in clinical trials that investigated the use of Q10 to reduce toxic side effects during cancer therapies (such as chemotherapy and radiation therapy) to determine whether CoQ10 made the treatments less effective. The use of antioxidant supplements, including CoQ10, before and during cancer therapy may be associated with higher recurrence rates and lower survival rates, according to a recent observational analysis of women with breast cancer.  

Ask your medical advisor if Coenzyme Q10  is safe with other medications for safety. The effects of CoQ10 can be lower due to several medications, including those created to control cholesterol, blood pressure, or blood sugar. In addition, Q10 may alter how the body processes insulin and warfarin, a medication that stops blood clots. Additionally, CoQ10 consumption is not proven to be safe during pregnancy or breastfeeding. CoQ10 during pregnancy or while nursing requires a doctor's prescription.

In short, always follow the directions on the bottle or get guidance for using Coenzyme q10 from a dietician or get a doctor's consultation. Remember that the ingredients and strengths of various supplement products may vary from brand to brand. If you notice any side effects, try following the Candida Diet Plan to recover from their nutritious food, including Vitamin C fruits. You can take online doctor consultations for Coenzyme Q10 usage with a click on Bajaj Finserv Health. The best thing here is that you can book a teleconsultation from the comfort of your home and get all the advice you need online. With the convenience and safety this offers, you can start taking the best care of your health and diet. If you want to protect yourself from Coenzyme Q10 you can avail of health insurance.

Published on 23 Sep 2022Last updated on 5 Apr 2023
  1. https://www.cancer.gov/about-cancer/treatment/cam/patient/coenzyme-q10-pdq

Please note that this article is solely meant for informational purposes and Bajaj Finserv Health Limited (“BFHL”) does not shoulder any responsibility of the views/advice/information expressed/given by the writer/reviewer/originator. This article should not be considered as a substitute for any medical advice, diagnosis or treatment. Always consult with your trusted physician/qualified healthcare professional to evaluate your medical condition. The above article has been reviewed by a qualified doctor and BFHL is not responsible for any damages for any information or services provided by any third party.

Dr. Rajkumar Vinod Desai

Medically reviewed by

Dr. Rajkumar Vinod Desai

, MBBS 1


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