Powerful Source of Antioxidants
ORAC stands for “oxygen radical absorbance capacity.” It is a measure of the antioxidant activity of foods. Basically, researchers set a bunch of free radicals (bad) against a sample of a food and see how well the antioxidants in the food can "disarm" the radicals. The biological relevance of ORAC values is questioned because it's measured in a test tube and may not have the same effect in the body. However, it is worth mentioning that raw, unprocessed cocoa beans are among the highest-scoring foods that have been tested. Dark chocolate is loaded with organic compounds that are biologically active and function as antioxidants. These include polyphenols, flavanols, and catechins, among others. One study showed that cocoa and dark chocolate had more antioxidant activity, polyphenols, and flavanols than any other fruits tested, which included blueberries and acai berries
May Improve Blood Flow and Lower Blood Pressure
The flavanols in dark chocolate can stimulate the endothelium, the lining of arteries, to produce nitric oxide (NO). One of the functions of NO is to send signals to the arteries to relax, which lowers the resistance to blood flow and therefore reduces blood pressure. Many controlled studies show that cocoa and dark chocolate can improve blood flow and lower blood pressure, though the effects are usually mild.
May Reduce Heart Disease Risk.
The compounds in dark chocolate appear to be highly protective against the oxidation of LDL. In the long term, this should cause much less cholesterol to lodge in the arteries, resulting in a lower risk of heart disease, in fact, several long-term observational studies show a fairly drastic improvement. In a study of 470 elderly men, cocoa was found to reduce the risk of death from heart disease by a whopping 50% over a 15-year period. Another study revealed that eating chocolate two or more times per week lowered the risk of having calcified plaque in the arteries by 32%. Eating chocolate less frequently had no effect. Yet another study showed that eating dark chocolate more than 5 times per week lowered the risk of heart disease by 57%. Of course, these three studies are observational studies, so can’t prove that it was the chocolate that reduced the risk. However, since the biological process is known (lower blood pressure and oxidized LDL), it is plausible that regularly eating dark chocolate may reduce the risk of heart disease.
ORAC stands for “oxygen radical absorbance capacity.” It is a measure of the antioxidant activity of foods. Basically, researchers set a bunch of free radicals (bad) against a sample of a food and see how well the antioxidants in the food can "disarm" the radicals. The biological relevance of ORAC values is questioned because it's measured in a test tube and may not have the same effect in the body. However, it is worth mentioning that raw, unprocessed cocoa beans are among the highest-scoring foods that have been tested. Dark chocolate is loaded with organic compounds that are biologically active and function as antioxidants. These include polyphenols, flavanols, and catechins, among others. One study showed that cocoa and dark chocolate had more antioxidant activity, polyphenols, and flavanols than any other fruits tested, which included blueberries and acai berries
May Improve Blood Flow and Lower Blood Pressure
The flavanols in dark chocolate can stimulate the endothelium, the lining of arteries, to produce nitric oxide (NO). One of the functions of NO is to send signals to the arteries to relax, which lowers the resistance to blood flow and therefore reduces blood pressure. Many controlled studies show that cocoa and dark chocolate can improve blood flow and lower blood pressure, though the effects are usually mild.
May Reduce Heart Disease Risk.
The compounds in dark chocolate appear to be highly protective against the oxidation of LDL. In the long term, this should cause much less cholesterol to lodge in the arteries, resulting in a lower risk of heart disease, in fact, several long-term observational studies show a fairly drastic improvement. In a study of 470 elderly men, cocoa was found to reduce the risk of death from heart disease by a whopping 50% over a 15-year period. Another study revealed that eating chocolate two or more times per week lowered the risk of having calcified plaque in the arteries by 32%. Eating chocolate less frequently had no effect. Yet another study showed that eating dark chocolate more than 5 times per week lowered the risk of heart disease by 57%. Of course, these three studies are observational studies, so can’t prove that it was the chocolate that reduced the risk. However, since the biological process is known (lower blood pressure and oxidized LDL), it is plausible that regularly eating dark chocolate may reduce the risk of heart disease.
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