Characteristics of coffee, why drink coffee?
Caffeine to stimulate
Polyphenols to slow cell aging
Vitamins and minerals for daily intake
The benefits of coffee on health, is coffee good for health?
Caffeine, a stimulant
Coffee contains caffeine. Caffeine is a stimulant and acts on the entire central nervous system. On a daily basis, it is recommended not to exceed 400 milligrams of caffeine, which corresponds to four cups of filter coffee or six espressos.
Caffeine increases alertness and concentration. Thus, it gives an energy boost. After its absorption by the digestive tract, it quickly reaches the brain. There, the caffeine blocks the receptors of a substance responsible for calming the nervous system. As a result, it does not let the brain rest and increases alertness. Hence the fight against drowsiness.
Some athletes are also coffee lovers. By stimulating the nervous system, caffeine improves vigilance during sport and delays the onset of the feeling of fatigue. A benefit for athletes! Obviously, beware of overdosing so as not to have the negative effects of excessive consumption and choose a coffee without sugar.
Coffee, an ally against migraine
Thanks to its vasoconstrictor effect, some people also notice that coffee can lessen the pain of a migraine.
Against Parkinson’s and Alzheimer’s disease
In addition, for those who respect the dose of two to three cups per day, coffee reduces the risk of onset of Parkinson’s disease. Studies have also shown that caffeine can protect neurons and impact different brain mechanisms responsible for the development of Alzheimer’s disease.
What impact for type 2 diabetes?
Coffee could also have a role to play against the onset of type 2 diabetes. High consumption would reduce the risk. Thus, a meta-analysis of 200,000 people had found that drinking six cups a day reduced the risk of type 2 diabetes by 35%. For the moment, the mechanism of action has not been identified nor the link of cause and effect.
Coffee, an ally against cholesterol?
In February 2022, a Canadian study looked at the role that coffee plays in the fight against cardiovascular disease. Researchers assure that two to three cups of coffee a day contain enough caffeine to trigger a biochemical reaction that leads to a decrease in LDL cholesterol levels in the blood. In 2013, a meta-analysis showed that those who drank three to five cups of coffee a day had a 15% lower risk of cardiovascular disease.
Coffee, good for the heart… but with caution
Regarding the benefits of coffee for coffee, the studies do not follow but are not always alike. In August 2021, a study presented at the annual meeting of the European Society of Cardiology, found those who drank up to three cups a day decreased the risk of death from heart disease, stroke and premature death. A confirmed benefit in people without a diagnosis of heart disease. According to this study, the risk of death from cardiovascular disease is reduced by 17% and that of stroke by 21%.
So, drink coffee but in moderation. In September 2021, a study warned heavy drinkers. According to work by researchers at the University of South Australia, starting with six cups of coffee a day increases the risk of heart disease.
What impact on the appearance of cancers? What effect?
In February 2022, an English study assured that drink three coffees a day could reduce the risk of death by 15% if the coffee is ground. A risk even reduced by 25% for those who drink less than three cups. What about other types of coffee? Regarding decaffeinated coffee, more than three cups a day reduced mortality by 17%. These results therefore prove that the benefits of coffee are not only in the caffeine, other studies are needed to further explain the mechanisms of action and understand where the benefits come from.
No effect was observed for instant coffee enthusiasts. Instant coffee contains more caffeine and antioxidants than ground coffee, but it also contains twice as much acrylamide, which has been shown to be neurotoxic and carcinogenic. This same study found a benefit against liver cancer. A downside, it is important to monitor the temperature of the coffee. Indeed, coffee drunk too hot could increase the risk of developing esophageal cancer.
A vitamin bomb
The coffee is an important source of soluble dietary fiber (19.8 grams per 100 grams of ground coffee). In addition, vitamin B3 (15 milligrams per 100 grams of ground coffee) contained in coffee is involved in the nervous system and the skin. Phosphorus (160 milligrams per 100 grams of ground coffee), also present in coffee.
Choose it well
Beans, ground or pod, coffee exists in different forms and for all tastes. While some prefer freshly-brewed coffee beans that retain all of their aroma, others swear by the practicality of pods. Today, coffee comes in all flavors. From the classic espresso, to the cappuccino – with a third of milk – passing through the latte or the mocha coffee – with a dose of chocolate, there is something for everyone.
And for those who prefer to drink it without caffeine, it also comes in a decaffeinated version. There are two techniques for this. It is possible to use solvents to extract the caffeine or to resort to water and carbon dioxide. In all cases, the mention of the process used must be indicated on the packaging.
Arabica and Robusta, coffee identity card
Coffee belongs to the Rubiaceae family, it spread in the 12th century in Yemen where it is then called K’hawah, which means “invigorating”. It arrived in Europe around 1600. Coffee is available all year round, the fruits are ripe six to eight months after flowering for Arabica and up to eleven months for Robusta.
In the world, there are two varieties of coffee: Arabica and Robusta. The first represents 75% of world production with a caffeine content of less than 1.3%. This variety, originally from Ethiopia, remains the most widespread with its mild flavor. Robusta represents 25% of world production. Hardier – as its name suggests – it is grown in West Africa and Southeast Asia.
Unlike its cousin, its caffeine content is higher since it is usually between 2 and 2.5%. Regardless of the coffee, the technique remains the same since the beans are roasted in order to release the aroma of the coffee.
To know : the longer a coffee is roasted, the stronger its taste will be.
The method of preservation depends on the coffee chosen. For ground coffee, it is recommended to keep it in the refrigerator in an airtight container because it oxidizes quickly on contact with air. Roasted whole grains can stay for several weeks at room temperature.
Preparation of coffee
The quality of the water is important to enjoy the full flavor of the coffee. It is therefore recommended to use filtered water to avoid any traces of limescale. Regarding the dosage, it is advisable to take between 3 and 6 cl of coffee for a cup of espresso. For those who like to add milk, why not try a vegetable milk (soya or almond for example). There are also alternatives to sugar such as honey.
If you’re always thinking about your hot cup of coffee for breakfast or after dinner, why not try an iced coffee that will refresh your hot summer days. And, for the curious, coffee can also be used in a marinade for meat. To your recipes!
Why is coffee bad for your health? What are the risks ?
While coffee can have many health benefits, excessive consumption will have the opposite effect. Too much coffee – and therefore caffeine – disrupts concentration. But it all depends on individual sensitivity. Too much coffee can cause a loss of alertness, difficulty concentrating, increased hypertension and increased heart rate. Also be careful, the caffeine contained in coffee is added to that present in other needs such as sodas, energy drinks and tea.
What are the contraindications to coffee? Is it good to drink coffee every day?
Coffee is not recommended for some people. Indeed, pregnant women should not abuse it. According to the World Health Organization (WHO), pregnant women should not consume more than 300 mg of caffeine per day, or about 3 cups of filter coffee.
Moreover, proof that nature is good, they are often naturally disgusted when they are expecting a child. In addition, coffee is not recommended for people who suffer from gastric ulcer because it stimulates acid secretion.
Not all coffees have the same caffeine content. The one that contains the most is, unsurprisingly, espresso with over 100 mg of caffeine. In a 235 ml cup of filter coffee, there is between 90 and 200 mg of caffeine. An instant coffee of the same capacity contains between 25 and 175 mg of caffeine.
Good to know : the longer the contact between coffee and water, the more caffeine the drink contains.