Chocolate n Yr Health
While chocolate is regularly eaten for pleasure, there are potential beneficial health effects of eating chocolate. Cocoa or dark chocolate benefits the circulatory system. Other beneficial effects suggested include anticancer, brain stimulator, cough preventor and antidiarrhoeal effects. An aphrodisiac effect is yet unproven.
On the other hand, eating large quantities of any chocolate increases risk of obesity.[citation needed] There is concern of mild lead poisoning for some types of chocolate. Chocolate is toxic to many animals because of insufficient capacity to metabolize theobromine.
A study reported by the BBC indicated that melting chocolate in one's mouth produced an increase in brain activity and heart rate that was more intense than that associated with passionate kissing, and also lasted four times as long after the activity had ended.
Circulatory benefits
Recent studies have suggested that cocoa or dark chocolate may possess certain beneficial effects on human health. Cocoa possesses a significant antioxidant action, protecting against LDL oxidation, perhaps more than other polyphenol antioxidant-rich foods and beverages. Some studies have also observed a modest reduction in blood pressure and flow-mediated dilation after consuming dark chocolate daily. There has even been a fad diet, named "Chocolate diet", that emphasizes eating chocolate and cocoa powder in capsules. However, consuming milk chocolate or white chocolate, or drinking fat-containing milk with dark chocolate, appears largely to negate the health benefit. Processed cocoa powder (so called Dutch chocolate), processed with alkali greatly reduces the antioxidant capacity as compared to "raw" cocoa powder. Processing cocoa with alkali destroys most of the flavonoids.
One-third of the fat in chocolate comes in the forms of a saturated fat called stearic acid and a monounsaturated fat called oleic acid. However, unlike other saturated fats, stearic acid does not raise levels of LDL cholesterol in the bloodstream. Consuming relatively large amounts of dark chocolate and cocoa does not seem to raise serum LDL cholesterol levels; some studies even find that it could lower them. Indeed, small but regular amounts of dark chocolate lower the possibility of a heart attack, a result of cholesterol imbalance according to the lipid hypothesis.
One-third of the fat in chocolate comes in the forms of a saturated fat called stearic acid and a monounsaturated fat called oleic acid. However, unlike other saturated fats, stearic acid does not raise levels of LDL cholesterol in the bloodstream. Consuming relatively large amounts of dark chocolate and cocoa does not seem to raise serum LDL cholesterol levels; some studies even find that it could lower them. Indeed, small but regular amounts of dark chocolate lower the possibility of a heart attack, a result of cholesterol imbalance according to the lipid hypothesis.
Aphrodisiac
Romantic lore commonly identifies chocolate as an aphrodisiac. The reputed aphrodisiac qualities of chocolate are most often associated with the simple sensual pleasure of its consumption. Additionally, chocolate's sweet and fatty nature may stimulate the hypothalamus, inducing pleasureable sensations as well as affecting the levels of serotonin. While serotonin has a pleasurable effect, in high concentrations it can be converted to melatonin which in large amounts reduces sexual drive. Finally, chocolate has been shown to contain unsaturated N-acylethanolamines which might activate cannabinoid receptors or increase endocannabinoid levels resulting in heightened sensitivity and euphoria. Although there is no firm proof that chocolate is indeed an aphrodisiac, a gift of chocolate is a familiar courtship ritual.
Other benefits
Several population studies have observed an increase in the risk of certain cancers among people who frequently consume sweet 'junk' foods such as chocolate. However, very little evidence exists to suggest whether consuming flavonoid-rich dark chocolate may increase or decrease the risk of cancer. Evidence from laboratory studies suggests that cocoa flavonoids may possess anticarcinogenic mechanisms, but more research is needed to prove this idea.
Studies suggest a specially formulated type of cocoa may be nootropic and delay brain function decline as people age.
Mars, Incorporated, a Virginia-based candy company, spends money each year on flavonol research. The company is talking with pharmaceutical companies to license drugs based on synthesized cocoa flavonol molecules. According to Mars-funded researchers at Harvard, the University of California, and European universities, cocoa-based prescription drugs could potentially help treat diabetes, dementia and other diseases.
Other research indicates that chocolate may be effective at preventing persistent coughing. The ingredient theobromine was found to be almost one third more effective than codeine, the leading cough medicine. The chocolate also appears to soothe and moisten the throat.
Studies suggest a specially formulated type of cocoa may be nootropic and delay brain function decline as people age.
Mars, Incorporated, a Virginia-based candy company, spends money each year on flavonol research. The company is talking with pharmaceutical companies to license drugs based on synthesized cocoa flavonol molecules. According to Mars-funded researchers at Harvard, the University of California, and European universities, cocoa-based prescription drugs could potentially help treat diabetes, dementia and other diseases.
Other research indicates that chocolate may be effective at preventing persistent coughing. The ingredient theobromine was found to be almost one third more effective than codeine, the leading cough medicine. The chocolate also appears to soothe and moisten the throat.
Obesity risk
The major concern that nutritionists have is that even though eating dark chocolate may favorably affect certain biomarkers of cardiovascular disease, the amount needed to have this effect would provide a relatively large quantity of calories, which, if unused, would promote weight gain. Obesity is a significant risk factor for many diseases, including cardiovascular disease. As a consequence, consuming large quantities of dark chocolate in an attempt to protect against cardiovascular disease has been described as 'cutting off one's nose to spite one's face'.
Acne
Here is a popular belief that the consumption of chocolate can cause acne. Various studies seem to show that this is the case for high glycemic index foods in general, though the question is still being studied. Milk is known to cause acne, including any which is mixed with chocolate.
Lead
Chocolate has one of the higher concentrations of lead among products that constitute a typical Westerner's diet, with a potential to cause mild lead poisoning. Recent studies have shown that although the beans themselves absorb little lead, it tends to bind to cocoa shells and contamination may occur during the manufacturing process. A recent peer-reviewed publication found significant amounts of lead in chocolate. A review article published in a peer-reviewed journal in 2006 states that despite high consumption levels of chocolate, there is a paucity of data on lead concentrations in chocolate products. In a USDA study in 2004, mean lead levels in the samples tested ranged from 0.0010 to 0.0965 µg lead per gram of chocolate, but another study by a Swiss research group in 2002 found that some chocolate contained up to 0.769 µg per gram, close to the international (voluntary) standard limit for lead in cocoa powder or beans, which is 1 µg of lead per gram. In 2006, the U.S. FDA lowered by one-fifth the amount of lead permissible in candy, but compliance is only voluntary. While studies show that the lead consumed in chocolate may not all be absorbed by the human body, there is no known threshold for the effects of lead on children's brain function and even small quantities of lead can cause permanent neurodevelopmental deficits including impaired IQ.
As a stimulant
Chocolate contains a variety of substances, some of which have an effect on body chemistry. These include:
* Sugar
* Theobromine, the primary alkaloid in cocoa and chocolate and partly responsible for chocolate's mood-elevating effect
* Tryptophan, an essential amino acid and precursor to serotonin
* Phenethylamine, an endogenous alkaloid sometimes described as a 'love chemical; it is quickly metabolized by monoamine oxidase-B and does not reach the brain in significant amounts
* Caffeine, present only in very small amounts
Chocolate is a mild stimulant to humans mainly due to the presence of theobromine. It is much more potent for horses, and its use in horse racing is prohibited.
* Sugar
* Theobromine, the primary alkaloid in cocoa and chocolate and partly responsible for chocolate's mood-elevating effect
* Tryptophan, an essential amino acid and precursor to serotonin
* Phenethylamine, an endogenous alkaloid sometimes described as a 'love chemical; it is quickly metabolized by monoamine oxidase-B and does not reach the brain in significant amounts
* Caffeine, present only in very small amounts
Chocolate is a mild stimulant to humans mainly due to the presence of theobromine. It is much more potent for horses, and its use in horse racing is prohibited.
