Since childhood we are convinced that coffee is harmful because it increases blood pressure and although several new studies showed that moderate use does not cause injury either hypertensive or healthy people, this remains a controversial drink. In fact, blood pressure to rise 15-20 minutes after drinking a cup of coffee, but as it appears that its effect is negligible and only very briefly. It can not be talking about negative effects of coffee on people suffering from hypertension or even less – for provoking a hypertensive crisis. Modern studies show that 1 to 4 cups of coffee is not detrimental to health but if the daily limit (ie more than 300 ml) is crossed, you may experience serious problems. When women can disrupt the menstrual cycle. People suffering from cardiac arrhythmia, episodes of nausea, disorders of the gastrointestinal tract, nervous tics, insomnia, increased levels of nervousness and anxiety should also be very attentive to this drink. We must not forget that caffeine is contained in many of confectionery, soft drinks, ice cream and in some medicinal preparations. On the other hand can not be denied that in many cases, coffee has a beneficial effect on health. Its use helps to focus attention, improve mood, increase vitality, relieve headache condition, the muscles of the airways and stimulating work of muscles.
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Instant coffee is coffee and useful to science today remains controversial drink. Long time it was considered to be entirely harmful to health. Recently emerged and research showing that in certain cases, it is useful – to prevent elderly sclerosis and diabetes, to improve potency. To this list was soon added a further property of coffee – it turned out that it contains a large amount of ballast substances that are not processed by chemical compounds play an important role in digestion and maintain the level of sugar in the blood. According to experts every day person needs 25 g of ballast substances, such shortages lead to intestinal problems. According to many previously published information about nutritious substances coffee contains ballast substances. Spanish scientists believe they have put a point on this controversy, they have proven that the drink (brewed or instant coffee) contains the cellulose and soluble sugars, which are ballast substances.
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