The health of the cardiovascular system is evaluated by assessing various physical factors including the heart’s structure and function, the condition and flexibility of the blood vessels, and blood flow to and from the heart. Healthy blood vessels are an important hallmark of cardiovascular health. Flexible vessels allow the body to adjust blood flow quickly and appropriately depending on the need. Low density lipoprotein (LDL) is known as the “bad” type of cholesterol, and when it is oxidized, it can stick to vessel walls and lead to the vessel walls being less flexible, affecting circulatory system health. However, ubiquinol acts as an antioxidant and attaches to LDL in the blood so that it’s less likely to be oxidized. Ubiquinol also helps protect cells and vessels from free radical damage, supporting the body’s ability to maintain vessel health, flexibility, and function.
In a controlled trial by Sabbatinelli in 2020, 51 people with moderately increased levels of cholesterol in their blood took either Kaneka Ubiquinol® (either 100 mg or 200 mg) or a placebo once a day for 8 weeks. Researchers measured the amount of oxidized LDL and the amount of total CoQ10 in their blood, as well as how flexible their blood vessels were (also known as “flow mediated dilation” or FMD) before and after the 8 weeks of the trial.
Those taking ubiquinol showed 37% better vessel flexibility compared to baseline when taking 100 mg per day for 8 weeks, and 35% better flexibility when taking 200 mg per day. Both improvements were statistically significant and did not occur in the group taking a placebo.
The researchers also conducted an experiment on the susceptibility of LDL to oxidation using blood samples from these groups at the end of the study. The susceptibility of LDL to oxidation was lower in the group that took Kaneka Ubiquinol® compared to those who took the placebo, showing that ubiquinol was able to protect LDL from oxidation, an important factor in maintaining the health of blood vessels.
This study demonstrates that taking Kaneka Ubiquinol® promotes vessel health and healthy blood circulation.

Reference
Sabbatinelli J, Orlando P, Galeazzi R, Silvestri S, Cirilli I, Marcheggiani F, Dludla PV, Giuliani A, Bonfigli AR, Mazzanti L, Olivieri F, Antonicelli R, Tiano L. Nutrients. 2020 Apr 15;12(4):1098.