Happy people drink coffee, right?

How true are the myths of coffee

How many of us do not wake up and start our day after our first cup of coffee? Dr.. Pedroza Ruth reveals the most important coffee myths that you should know its benefits and you can take it without guilt.

Myth 1: The coffee addiction creates its caffeine content

It is well known that coffee contains caffeine, substance psychoactive effects, i.e. acting as central nervous system stimulant. However this does not mean that fosters addictive behavior. The most notable effects of caffeine on behavior are:

Increases alertness
Improves concentration
It gives a feeling of having more energy

These benefits occur after consuming a moderate amount of coffee, 2 to 4 cups (50 to 300 mg of caffeine). This level of consumption hardly represents a health risk and should be considered that coffee consumption is gradual during the day.


Caffeine is absorbed in the stomach in about 45 min after drinking coffee and subsequently metabolized in the liver before being eliminated in the urine. It has been shown that the risk of addiction to caffeine is very low (Nehlig, 1999).

Studies in adolescents and adults regular caffeine consumers, have found no signs of dependence.

Myth 2: Drinking coffee dehydrates

Some people recommend drinking a glass of water with each cup of coffee or tea you drink to prevent dehydration.

This myth about dehydration and coffee, came many years ago when it was suggested that caffeine was a diuretic effect. But as with many substances dose dependent.

A study published in 2002 concluded that the body caffeinated fluid retention is around 84% and that of water is 81%, and no evidence was found in the unbalanced electrolyte levels that could be attributed to coffee consumption. Today we know that regular consumption of caffeine (about 300 mg) promotes the development of tolerance to the diuretic effect.

How true are the myths of coffee 1

Myth 3: Coffee is not beneficial in weight control programs

Some studies support the hypothesis that habitual coffee consumption is associated with the reduction of a variety of indicators of obesity (such as improved glucose tolerance and improved lipid profile). In studies with experimental animals that have been induced obesity, coffee consumption has been associated with a decrease in body weight.

The caffeine in doses of 5 mg / kg body weight (approximately 2 to 3 cups of coffee) is enough to mobilize the use of fat as fuel.

Myth 4: Drinking coffee increases the risk of cardiovascular disease

Recently it has been shown that coffee consumption reduces the risk of cardiovascular disease. An analysis that included studies in a range of 42, suggested that moderate coffee consumption (1-2 cups a day) can decrease the risk of heart disease.