Dark chocolate can protect the heart and liver
Lovers of bitter chocolate have received another scientific confirmation of the benefits of their delicacy. A new review of research has shown that cocoa flavanols can influence key risk factors for heart disease and fatty liver. Nevertheless, scientists warn that to get a therapeutic effect, you need to choose the right variety and know the measure.
Cardiovascular diseases and fatty liver disease have common enemies: chronic inflammation, oxidative stress, and insulin resistance. Dark chocolate with a cocoa content of 70% or higher is rich in bioactive compounds that act as soft natural defenders of the body, helping cells cope with these negative factors.
The main strength of cocoa lies in its high content of epicatechin and procyanidins. The substances neutralize reactive oxygen species that damage blood vessels and liver tissue. Studies confirm that eating high—quality chocolate increases the level of protective enzymes in the blood and reduces the production of cytokines, signals that trigger inflammatory processes.
Cocoa flavanols are valuable for heart health because they stimulate the production of nitric oxide. This causes blood vessels to dilate, improves blood flow, and lowers blood pressure. In some experiments, it has been observed that moderate consumption of dark chocolate helps reduce bad cholesterol and improve insulin sensitivity, although these effects strongly depend on the dosage and individual characteristics of the body.
As for the liver, preliminary data indicate the ability of cocoa to reduce fat accumulation and cell damage in steatosis (fatty disease). In patients who included dark chocolate in the diet, markers of liver cell death decreased and signs of internal toxin poisoning (endotoxemia) decreased. Experts emphasize that chocolate is only an addition to a diet, not a substitute for medications.
It is important to remember the dark side of the sweet treat. Excessive consumption of chocolate brings extra calories, sugar and fats, which can negate all the benefits of cocoa. In addition, most of the studies were short-term, so scientists are not yet ready to prescribe chocolate as an official remedy for the treatment of advanced stages of diseases.
Currently, the best medical advice is to consider a slice of dark chocolate as a functional part of a healthy diet. It is most effective in the early stages, helping to prevent the development of problems before they develop into a chronic form.
Published
February, 2026
Category
Medicine
Duration of reading
2-3 minutes
Share
Source
Scientific Journal Nutrients. Article: Beyond Taste: The Impact of Chocolate on Cardiovascular and Steatotic Liver Disease Risk Factors
Don’t miss the most important science and health updates!
Subscribe to our newsletter and get the most important news straight to your inbox