Beef Heart Benefits: CoQ10, B Vitamins, and What the Research Says
Written by Emile Siers-Jamieson, Founder of REGEN+. Reviewed by Josh Achten, BAppSc (Sports Nutrition), University of Otago.
Beef heart is one of the richest natural dietary sources of Coenzyme Q10 (CoQ10), a compound the body uses for cellular energy production and antioxidant protection. It is also high in B vitamins, iron, zinc, and provides all nine essential amino acids alongside notable amounts of taurine and L-carnitine (USDA FoodData Central). Despite this nutrient profile, heart has largely disappeared from modern diets.
Key Takeaways
- Beef heart contains approximately 11mg of CoQ10 per 100g, making it one of the most concentrated common dietary sources of this compound (Journal of Food Composition and Analysis, 2012).
- CoQ10 plays a central role in mitochondrial energy production and functions as an antioxidant. The body's own production of CoQ10 declines with age (Nutrients, 2019).
- Beef heart is technically a muscle, not an organ, which gives it a texture closer to lean steak and a milder flavour than liver or kidney.
- Heart provides all nine essential amino acids along with taurine and L-carnitine, both of which have been studied for their roles in cardiovascular and metabolic function.
- Statin medications reduce CoQ10 levels as a side effect by inhibiting the same metabolic pathway the body uses to produce it (Ochsner Journal, 2010).
What Is CoQ10 and Why Does It Matter?
Coenzyme Q10 (also called ubiquinone) is a compound found in nearly every cell in the body. Its primary role is in the mitochondria, where it helps convert food into adenosine triphosphate (ATP), the molecule cells use for energy. The highest concentrations of CoQ10 are found in organs with high energy demands: the heart, liver, kidneys, and skeletal muscles.
CoQ10 also functions as a fat-soluble antioxidant, helping protect cell membranes from oxidative damage. A 2021 review noted that CoQ10 supplementation has shown potential benefits for cardiovascular health, including improvements in markers of oxidative stress and mitochondrial function, though the authors emphasised that larger-scale trials are still needed to establish optimal dosing and clinical endpoints (Antioxidants, 2021). More recently, a 2024 meta-analysis of randomised controlled trials in heart failure patients found that CoQ10 supplementation was associated with reduced all-cause mortality and improvements in ejection fraction, though the clinical significance of these findings continues to be debated (BMC Cardiovascular Disorders, 2024).
The body produces CoQ10 endogenously via the mevalonate pathway (the same pathway involved in cholesterol synthesis). However, this production declines with age. Research has found that myocardial CoQ10 concentrations can decrease to approximately half by age 80 (Nutrients, 2019). This age-related decline is one reason dietary and supplemental sources of CoQ10 have received research attention.
How Much CoQ10 Is in Beef Heart?
Beef heart contains approximately 11mg of CoQ10 per 100g, based on published food composition analyses (Journal of Food Composition and Analysis, 2012). This makes it one of the richest common dietary sources. By comparison, beef muscle meat contains roughly 3mg per 100g, and pork heart provides similar concentrations to beef heart.
It is worth noting that cooking reduces CoQ10 content. Research has found that frying beef heart retains approximately 69% of its CoQ10, while boiling and other methods show slightly higher retention rates of 74-80% (Food Chemistry, 2014). Freeze-drying, which uses low temperatures and vacuum rather than heat, avoids the thermal degradation that cooking methods cause.
For context, CoQ10 supplements typically provide 100-200mg per dose, which is substantially more than dietary sources alone can deliver. Beef heart and freeze-dried heart supplements are best understood as food-based contributions to overall CoQ10 intake rather than therapeutic-dose replacements for CoQ10 supplements.
Do Statins Affect CoQ10 Levels?
Statin medications, widely prescribed for cholesterol management, inhibit the enzyme HMG-CoA reductase. This is the same enzyme involved in the mevalonate pathway that the body uses to produce CoQ10. As a result, statins reduce circulating CoQ10 levels as a side effect (Ochsner Journal, 2010).
Research has found that statin use is associated with decreased blood CoQ10 levels, though the effect on intramuscular CoQ10 is less consistent. A 2018 meta-analysis examined whether CoQ10 supplementation helps with statin-associated muscle symptoms and found some evidence of benefit, though the authors noted the evidence base was limited and results were not uniform across all trials (Journal of the American Heart Association, 2018).
People taking statins who are interested in supporting their CoQ10 intake should discuss this with their prescribing doctor. The decision to supplement, and at what dose, depends on individual circumstances. Dietary sources like beef heart can contribute to overall CoQ10 intake but do not provide the doses used in clinical trials.
What Other Nutrients Does Beef Heart Provide?
Beyond CoQ10, beef heart has a broad nutrient profile. Per 100g of raw beef heart, USDA data shows approximately (USDA FoodData Central):
- Protein: approximately 17g of complete protein containing all nine essential amino acids.
- Vitamin B12: approximately 8.6mcg (over 350% DV). Supports nerve function and red blood cell formation (NIH Office of Dietary Supplements).
- Iron: approximately 4.3mg of total iron in a bioavailable food matrix (NIH Office of Dietary Supplements).
- Zinc: approximately 1.7mg. Supports immune function and wound healing (NIH Office of Dietary Supplements).
- Riboflavin (B2): approximately 0.9mg (69% DV). Important for energy metabolism.
- Niacin (B3): approximately 7.5mg. Involved in energy production and DNA repair.
- Selenium: approximately 21mcg (38% DV). Supports thyroid and antioxidant function.
Beef heart also provides taurine (approximately 63mg per 100g) and L-carnitine, two amino acid-related compounds that have received research attention for their roles in cardiovascular and metabolic health (Meat Science, 2012). A 2024 systematic review found that taurine supplementation was associated with modest blood pressure reductions and improvements in cardiac function markers in certain populations, though the authors noted that more well-designed trials are needed (Nutrition Journal, 2024). L-carnitine plays a role in fatty acid transport into mitochondria for energy production and has been studied in the context of cardiac function, with a meta-analysis finding associations with reduced all-cause mortality after acute myocardial infarction, though the broader evidence remains mixed (Mayo Clinic Proceedings, 2013).
How Does Beef Heart Compare to Other Cuts of Beef?
Beef heart is technically a muscle rather than a glandular organ, which makes it different from liver or kidney in both texture and flavour. It is lean, dense, and has a taste closer to a rich steak than to the strong mineral flavour associated with liver. This makes it more approachable for people who find organ meats off-putting.
Nutritionally, heart fills a different niche from other cuts. It provides substantially more CoQ10 than any common muscle cut, more B12 and iron than most steaks, and meaningful amounts of taurine and L-carnitine. It is also typically much cheaper than premium cuts such as sirloin or eye fillet, which reflects cultural preferences rather than nutritional value.
Compared to liver, heart has a narrower micronutrient profile. It does not match liver's concentrations of vitamin A, copper, or folate. The two cuts complement each other, which is why some supplement formulations combine them.
Why Did People Stop Eating Beef Heart?
Like other organ meats, heart fell out of favour as food systems industrialised and consumer preferences shifted toward familiar, mild-flavoured cuts. In New Zealand, beef heart was a common and affordable meal as recently as the 1970s, typically braised, stewed, or stuffed and roasted.
The decline was cultural rather than nutritional. Heart is lean, high in protein, and more nutrient-dense than many of the premium cuts that replaced it. For farmers and butchers who work close to the food chain, eating heart never stopped. The disconnect is primarily an urban one, and the growing interest in nose-to-tail eating and nutrient density has brought heart back into the conversation.
Is Beef Heart Safe to Eat?
Beef heart is safe for most adults as part of a varied diet. Unlike liver, it does not contain very high concentrations of vitamin A or copper, so the safety considerations that apply to liver are less relevant for heart.
People with gout or hyperuricaemia should be aware that heart, like other organ meats, contains purines, which can raise uric acid levels. Those with specific cardiovascular conditions should discuss any significant dietary changes with their healthcare provider, particularly if they are taking medications that affect heart function or metabolism.
Frequently Asked Questions
How much CoQ10 is in beef heart compared to supplements?
Beef heart contains approximately 11mg of CoQ10 per 100g (Journal of Food Composition and Analysis, 2012). Standard CoQ10 supplements typically provide 100-200mg per dose. Dietary sources contribute to overall CoQ10 intake but do not provide the therapeutic doses used in clinical research.
Is beef heart good for athletes?
Beef heart provides a combination of complete protein, B vitamins, iron, and CoQ10 that may be relevant for active people. However, there is limited research specifically examining beef heart consumption and athletic performance. Athletes with confirmed nutrient deficiencies (such as iron or B12) may benefit from including nutrient-dense foods like heart in their diet, but it should not be viewed as an ergogenic aid without supporting evidence.
Does cooking destroy CoQ10 in beef heart?
Cooking reduces CoQ10 content but does not eliminate it. Research found that frying retained approximately 69% of CoQ10 in beef heart, while other methods showed 74-80% retention (Food Chemistry, 2014). Gentler cooking methods such as braising or slow cooking at lower temperatures may preserve more CoQ10 than high-heat methods. Freeze-drying avoids thermal degradation entirely.
What does beef heart taste like?
Beef heart has a rich, beefy flavour that is milder than liver or kidney. Its texture is dense and lean, similar to a well-exercised muscle cut. Many people who dislike the taste of other organ meats find heart more acceptable. It is commonly prepared by braising, slow cooking, or slicing thinly for quick searing.
Can I take beef heart supplements alongside CoQ10 supplements?
In most cases, yes. The CoQ10 content of freeze-dried beef heart supplements is modest (typically a few milligrams per serving), so combining them with standard CoQ10 supplements is unlikely to cause excessive intake. However, if you are taking CoQ10 for a specific medical condition, discuss your total intake from all sources with your healthcare provider.
Is beef heart high in cholesterol?
Beef heart contains approximately 124mg of cholesterol per 100g, which is moderate compared to liver (approximately 275mg per 100g). Current dietary guidelines from most countries no longer set a specific numerical limit on dietary cholesterol, though they recommend keeping intake reasonable. For most people, moderate consumption is unlikely to be a concern.
How does freeze-dried beef heart compare to fresh?
Freeze-dried beef heart retains the nutrient profile of fresh heart in a concentrated, shelf-stable form. However, a typical supplement serving provides considerably less than a 100g portion of fresh heart, so the absolute nutrient amounts per serve are lower. Freeze-drying avoids the CoQ10 losses associated with cooking, which may be an advantage for people specifically interested in CoQ10 content. Check the product label for specific nutrient amounts per serving.
This article is for informational purposes only and does not constitute medical advice. People taking statins or other cardiovascular medications should consult their healthcare provider before making significant dietary changes or starting new supplements. CoQ10 status and supplementation should be discussed with a qualified healthcare professional.
Last reviewed: April 2026.
Looking for a whole-food source of CoQ10 and other heart-specific nutrients? REGEN+ Organic Beef Organ Blend contains freeze-dried certified organic New Zealand beef heart and liver.