Does coffee have calories?
No, but adding milk and sugar to a cup of coffee does add some calories, although not many.
How much caffeine is present in coffee beans?
The percentage of caffeine in coffee varies from 1% to 2.5%, but a number of other substances are found in larger amounts. These other substances may even be more important for the human body than caffeine.
What are the other substances found in coffee beans?
Potassium, zinc, iron, magnesium and several other minerals, although in small amounts. Coffee beans also contain amino acids, proteins, lipids, sugars, polysaccharides and a vitamin from the B complex - niacin (vitamin B3). But more than all of the other substances, the percentage of chlorogenic acids are 7% to 10%, that is, 3 to 5 times greater than caffeine.
Does coffee keep you awake?
In most cases, yes. For the vast majority of people, drinking coffee at night alters, delays or even prevents sleep. On the other hand, coffee helps us to perform our daily work and study activities.
What is the right amount of coffee for me?
Studies recommend the following ideal daily consumption:
|COFFEE CONSUMPTION||EARLY MORNING||MID-MORNING||EARLY AFTERNOON||MID-AFTERNOON|
|UP TO 10 YEARS OF AGE||50 ml||50 ml||50 ml||50 ml|
|FROM 10 TO 15 YEARS OF AGE||100 ml||100 ml||100 ml||100 ml|
|FROM 15 TO 20 YEARS OF AGE||100 ml||100 ml||100 ml||100 ml|
|FROM 20 TO 60 YEARS OF AGE||150 ml||150 ml||150 ml||150 ml|
|+ 60 YEARS||150 ml||50 ml||100 ml||50 ml|
What is the relationship between caffeine and mental performance?
The caffeine contained in coffee increases alertness and reduces sleepiness, which can be especially important in situations of low stimulation (for example, working at night).
Is coffee good for you?
Yes. Coffee is one of the healthiest natural foods out there. In addition to being good for your health, it helps to improve your mood and even to prevent depression, some cardiovascular diseases and cancer.
Can drinking coffee help kids and teens learn more at school?
Yes, you just have to drink a coffee in the morning, with the school lunch and as an afternoon snack.
Does coffee help prevent bad moods?
Yes. Coffee contains chlorogenic acids, which, after roasting, form substances that affect your mood by altering endorphins in the brain. Quino lactones are formed when coffee beans are roasted. These substances influence your mood, increasing the feeling of well-being, which is very beneficial. After all, this helps to prevent depression, which can potentially lead to suicide or alcoholism (with the associated liver diseases, such as cirrhosis). The habit of drinking coffee helps you avoid this, and even provides other health benefits.
Is coffee a stimulant?
The caffeine in coffee is a mild stimulant. The effect it produces depends on the activities in which you are engaged. When an exercise activity is monotonous or non-motivating, the caffeine in your coffee can help give you the energy you need to get the most out of your exercises as well as reduce subsequent fatigue.
I've heard that coffee improves physical performance. What does this mean for me when I am exercising?
The conclusions of numerous studies show that caffeine actually improves physical performance, with effects that apply to a wide range of sports and exercises. Not only did well-trained athletes participate in these studies, but also people with relatively sedentary lifestyles.
Is this beneficial effect temporary?
No. In prolonged exercise activities, performance improvements seem to be greater than in short, energy-intensive exercises.
How much coffee do I need to consume to get this benefit?
Relatively little. In a large cup of instant coffee there is 90 mg of caffeine, and physical performance can improve significantly with even lower doses.
How exactly does coffee help to stimulate physical performance?
The mechanisms are not yet fully understood and recent studies suggest that several systems are likely to contribute to the process.
If coffee is a diuretic, shouldn't it be avoided during exercise?
Athletes who compete in hot, humid conditions or endurance sports where the risk of dehydration is greater are often advised to drink more fluids. At the same time, many athletes are advised to avoid tea and coffee because of their supposedly diuretic effect. Current research shows that this effect is insignificant for people who include drinks that contain caffeine in their normal diet and that cutting these drinks out of their diet can do more harm than good.
Isn't caffeine a substance that professional athletes, like those who participate in the Olympic Games, are prohibited from taking?
Until January of 2004, the International Olympic Committee (IOC) limited caffeine intake by athletes of both sexes. On the recommendation of the World Anti-Doping Agency (WADA), caffeine has been removed from the list of substances banned by WADA, followed by the IOC. The fact that the very small amounts of caffeine from coffee benefit physical performance was an important factor that was taken into consideration in this decision.
Does coffee really have a place in a healthy diet and lifestyle?
Considering the various initiatives of governments and experts from around the world to promote physical activities for better health, everything that encourages participation in sports and exercise has a huge potential to improve public health. Caffeine from coffee can reduce the discomfort and fatigue that most people feel when exercising. Its widespread and long-standing use in most diets can contribute significantly to improving fitness and health.