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Caffeine - properties, daily value, sources

Fat burners

1K 1 27.04.2019 (last revision: 02.07.2019)

Pure caffeine is synthesized in tea leaves (about 2%) and seeds of the coffee tree (1 to 2%), as well as in small amounts in cola nuts.

According to its chemical characteristics, caffeine is a white crystalline powder, odorless, with a bitter taste. It dissolves quickly in hot water, slowly in cold water.

In a chemical laboratory, scientists have developed a synthetic analogue of caffeine with the formula C8H10N4O2 and began to widely use it in the food industry, for example, for the manufacture of energy soft drinks, which are very popular among young people. But it should be noted that with long-term intake of them, the sensitivity to the component decreases, the body gets used to it and begins to require an increase in the dose. Therefore, you should not abuse such drinks.

The main property of caffeine is to have an exciting effect on the central nervous system, due to which drowsiness and fatigue disappear, new strength and energy appear.

Caffeine is very easily absorbed into the plasma and has a high degree of absorption, however, the duration of its effect is not very long. The complete disintegration process takes no more than 5 hours. The metabolism of this substance does not depend on gender and age, but it has a high rate in people with nicotine addiction.

Caffeine penetrates into plasma, intercellular and intracellular fluids, some types of adipose tissue, and is processed by the liver, after which it is excreted from the body.

Caffeine can be of natural origin or synthetic, there is practically no difference between their effect on the body. You can measure its amount only by passing the analysis of saliva, where this substance accumulates more intensively.

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Action on the body

Caffeine is a causative agent of the central nervous system, activating the work of the brain, motor function, increases endurance, efficiency, reaction speed. Reception of the substance leads to increased respiration, heart rate, increased blood pressure, dilation of the bronchi, blood vessels, biliary tract.

Caffeine has the following effects on the body:

  1. It activates the brain.
  2. Reduces fatigue.
  3. Increases performance (mental and physical).
  4. Accelerates heart contractions.
  5. Increases pressure.
  6. Stimulates the work of the gastrointestinal tract.
  7. Speeds up metabolism.
  8. Has a diuretic effect.
  9. Breathing quickens.
  10. Expands blood vessels.
  11. Stimulates the liver to produce extra sugar.

Sources

Keep in mind that even decaffeinated drinks contain very small amounts (1 to 12 mg per cup).

DrinkVolume, mlCaffeine content, mg
Custard20090-200
Decaffeinated custard2002-12
Espresso3045-74
Soluble20025-170
Coffee with milk20060-170
Black tea20014-70
Green tea20025-43
Redbull25080
CocaCola35070
Pepsi35038
Hot chocolate15025
Cocoa1504
Products
Black chocolate30 gr.20
Milk chocolate30 gr.6

Excess

Excessive consumption of caffeine can lead to unpleasant consequences for the body:

  • sleep disturbance;
  • increased pressure;
  • cardiac diseases;
  • gout;
  • urinary incontinence;
  • fibrocystic mastopathy;
  • upset stomach;
  • frequent headaches;
  • increased anxiety;
  • suppression of collagen production;
  • increased bone fragility.

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Indications for admission

Caffeine is prescribed for diseases associated with depression of the respiratory and cardiovascular systems, as well as for cerebral vasospasm, fatigue, and decreased performance.

Daily rate

The normal daily dose of caffeine is 400 mg, and the person will not cause any harm to health. For simplicity, this is roughly 2 x 250 ml coffee cups.

A dose of 10 grams of caffeine per day is deadly.

Caffeinated Supplements for Athletes

NameManufacturerRelease form (capsules)Cost, rub.)
Lipo 6 Caffeine

Nutrex60410
Caffeine Caps 200 mg

Strimex100440
Mutant Core Series Caffeine

Mutant240520
Caffeine

SAN120440
Caffeine Performance Booster

Scitec Nutrition100400
High caffeine

Natrol100480
Caffeine

Weider1101320

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Watch the video: Does caffeine stop hair loss? (July 2025).

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