What is coenzyme Q10, and what does it do?
A molecule the body makes itself, with a place in cellular energy production. It is much talked about in the supplement market; how much of what we know stands on solid ground?
Where does it sit in the cell?
Coenzyme Q10 (ubiquinone) takes its name from being everywhere: “ubiquitous”. It is found in almost every cell of the body, most densely in the mitochondria.
Mitochondria are the cell’s energy-producing compartments. There, electrons are passed along a chain of protein complexes, and this transfer ends in the production of ATP. Coenzyme Q10 acts as an electron carrier in this chain, taking electrons from one complex and passing them to the next: one of the links in the energy production line.
It is also present in cell membranes as a fat-soluble antioxidant.
If the body makes it, why supplement it?
Coenzyme Q10 is synthesised in the body; the amount from food is relatively small. Research points out that tissue levels tend to decline with age, and that some groups of medicines can affect the pathway that produces it.
That does not mean “everyone needs a supplement”. What the age-related decline means in practice, and whether supplementation makes up for it, are still being researched.
The evidence, plainly: health claim applications for coenzyme Q10 submitted to the European Food Safety Authority (EFSA), including energy production and antioxidant effects, were rejected. Statements such as “CoQ10 boosts energy production” cannot be used in product communication in the EU and Türkiye. Its biochemical role is clearly defined, but evidence that supplementation brings a measurable benefit in healthy people has not met the regulator’s threshold.
Ubiquinone or ubiquinol?
There are two forms: ubiquinone (oxidised) and ubiquinol (reduced). The body constantly converts one into the other; its electron-carrying role depends on exactly this conversion.
Ubiquinol is claimed to be better absorbed and is usually more expensive. But because the body converts whichever form you swallow as needed, it is debated whether the practical difference is as large as claimed. Ubiquinone is the long-used, stable and well-studied form.
Absorption: take it with fat
Coenzyme Q10 is fat-soluble, so it is absorbed better with a meal that contains fat than on an empty stomach. That is the practical reason morning formulas suggest taking it with breakfast.
Who should be careful?
People taking blood-thinning medicines should ask their doctor because of possible interactions. Data are limited in pregnancy and breastfeeding. If you take regular medication, always ask your doctor before adding a supplement.
Related reading
Coenzyme Q10, in the morning phase
Magvela’s RISE capsule contains coenzyme Q10 and is designed to be taken with your morning meal, which is also the practical choice for a fat-soluble ingredient.
This content is for information only and is not medical advice. Food supplements should not be used as a substitute for a varied and balanced diet and are not intended to prevent or treat any disease. If you are pregnant or breastfeeding, have a long-term health condition or take regular medication, talk to your doctor before taking a supplement. Do not exceed the recommended daily dose.