Cocoa and Health: Why It Is Healthy | Hardworkout Magazine
Key takeaways
- Flavanols in cocoa stimulate nitric oxide production in the cells lining blood vessels, which relaxes the vessel wall and can lower blood pressure.
- Alkali treatment darkens cocoa powder and mellows the flavour, but it also reduces the content of several of the natural plant compounds.
- Unsweetened cocoa powder and cocoa nibs generally contain more beneficial plant compounds than chocolate and sweetened cocoa products.
- The cocoa percentage on a label does not reliably indicate how much flavanol a product contains, because both the raw material and the processing affect the content.
- Cocoa contains caffeine and theobromine, and people sensitive to stimulants may experience restlessness, palpitations or poorer sleep at high intakes.
Where does cocoa come from?
Cocoa is made from the beans of the cacao tree (Theobroma cacao), which originates in the tropical rainforests of Central and South America. Today, the tree is grown in several places around the equator, with West Africa accounting for a large portion of cocoa production.
Cocoa is particularly rich in antioxidants and also contains dietary fiber and several important minerals. These substances are relevant for blood vessels, cholesterol, blood sugar, and the protection of the body's cells. The benefits you receive depend on the type of cocoa you choose and how it has been processed.
What you should know about cocoa
Cocoa comes from the cacao tree and has been used as food and drink for thousands of years.
It contains large amounts of antioxidants that help protect cells against oxidative stress.
Flavanols can improve the function of blood vessels by increasing the production of nitric oxide.
Read more Read less
Regular consumption of cocoa may have a beneficial effect on blood pressure and LDL cholesterol.
Dietary fiber and flavanols can contribute to a more stable regulation of blood sugar.
Fiber and polyphenols serve as nourishment for gut bacteria and contribute to healthy digestion.
Unsweetened cocoa powder and cocoa nibs usually contain more of the beneficial plant compounds than regular chocolate.
Cocoa should be part of a varied diet, but products with a lot of added sugar provide fewer health benefits.
How is cocoa processed from bean to powder?
Cocoa fruits grow directly on the trunk and the largest branches of the cacao tree.
Inside each fruit, there are usually between 20 and 50 cocoa beans surrounded by a light fruit pulp.
After harvesting, the beans are fermented for several days. During fermentation, the substances that later give cocoa its characteristic flavor and aroma develop.
The beans are dried and roasted before being ground into cocoa mass. This can be pressed so that the cocoa butter separates from the solid part, which is then ground into cocoa powder. Cocoa nibs are roasted cocoa beans that have been crushed into small pieces.
How much the beans are processed affects the nutritional content. Alkali treatment is used to darken the cocoa powder and mellow the flavor, but this process also reduces the content of several of the natural plant compounds.
What does cocoa contain?
One of the things that distinguishes cocoa from many other foods is its high content of flavanols.
Flavanols are a type of polyphenol, which are natural plant compounds. In the body, they act as antioxidants and help neutralize free radicals.
Free radicals are naturally formed as part of the body's metabolism. If their amount exceeds what the body can handle, they can damage cell membranes, proteins, and DNA.
This is called oxidative stress and is a contributing mechanism in the development of, among other things, atherosclerosis and type 2 diabetes.
The antioxidants in cocoa can limit such oxidative damage by reacting with free radicals before they harm the cells.
Cocoa also contains magnesium, iron, copper, manganese, potassium, phosphorus, and zinc.
Magnesium is important for muscle contraction, nerve signals, and energy production. Iron is necessary for making hemoglobin, which carries oxygen in the blood, while copper contributes to normal metabolism and transport of iron. Manganese and zinc are involved in enzymes that protect cells and are necessary for a normal immune defense.
How does cocoa affect blood pressure and cholesterol?
The flavanols in cocoa stimulate the formation of nitric oxide in the cells lining the inside of blood vessels.
Nitric oxide causes the muscle cells in the blood vessel wall to relax, allowing the blood vessels to expand and the blood to encounter less resistance. This can lead to better blood flow and contribute to lower blood pressure.
Cocoa can also affect cholesterol. LDL carries cholesterol from the liver to the body's cells. When there is too much LDL in the blood, particles can penetrate the blood vessel wall. Oxidation of LDL contributes to inflammation and the formation of deposits that can develop into atherosclerosis over time. The antioxidants in cocoa can protect LDL particles from oxidation.
A larger [study](https://www.mdpi.com/2072-6643/16/12/1919) published in 2024 also found that regular consumption of cocoa could contribute to lower blood pressure, total cholesterol, LDL cholesterol, and fasting blood sugar in adults.
[](https://hardworkout.no/kosthold-og-kolesterol-slik-kan-du-forebygge-gjennom-maten/)
Diet Diet and cholesterol – how you can prevent through food
Jul 16, 2026
Does cocoa affect blood sugar and insulin sensitivity?
Unsweetened cocoa powder contains little sugar and some dietary fiber.
Fiber is not broken down into glucose in the same way as digestible carbohydrates, and therefore does not contribute to a rapid increase in blood sugar. When unsweetened cocoa powder is included in a fiber-rich meal, the overall fiber content can help glucose be absorbed more gradually.
However, how much blood sugar rises after a meal depends on the overall composition of the meal. Cocoa mixed with large amounts of sugar will therefore affect blood sugar differently than unsweetened cocoa powder in, for example, oatmeal or yogurt.
The flavanols in cocoa may also help increase the cells' sensitivity to insulin.
Insulin is the hormone that allows particularly muscle and fat cells to take up glucose from the blood and use it as energy. When cells respond better to insulin, less insulin is needed to regulate blood sugar.
Can cocoa improve brain function?
The effect on blood vessels is also relevant for the brain.
When blood vessels can expand more easily, blood supply to the brain can increase. This gives brain cells access to oxygen and glucose, which they need to produce energy and send signals.
This does not mean that cocoa alone improves memory or prevents brain disease. The connection is that flavanols can promote normal blood vessel function, and a good blood supply is necessary for the brain to function normally.
[](https://hardworkout.no/kreatin-for-styrke-energi-og-helse-en-komplett-guide/)
Diet Creatine for Strength, Energy, and Health: A Complete Guide
Jul 16, 2026
What does cocoa fibre do in the gut?
A portion of the dietary fiber in cocoa passes through the small intestine without being broken down.
In the large intestine, parts of the fiber and polyphenols can be utilized by gut bacteria.