Foods that Contain Caffeine

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The mechanism of action of caffeine on the body

Caffeine is readily soluble in water. This property allows it to penetrate quickly into the bloodstream. The effect of the consumption of caffeinated beverages and meals is seen in 8-10 minutes. However, the maximum concentration of this alkaloid in the blood is observed only after 35-50 minutes after its intake.

Once in the bloodstream, the caffeine begins to block the action of adenosine – nucleoside that slows down the production of neurotransmitters that transmit nerve impulses from one neuron to another. It is this chemical compound has a General calming effect on the body and causes the sleepiness after prolonged wakefulness. In the absence of adenosine nerve cells and tissue continue to get excited, but man, caffeinated products remains vigorous.

Along with this, caffeine stimulates the adrenal glands, thereby increasing the concentrations of cortisol, noradrenaline and adrenaline in the blood. Normally, these stress hormones are produced in those moments when a person is experiencing anxiety, fear or berserk. Provoking their synthesis, caffeine artificially stimulates the brain, making the person feel excited and active.

On average, the alkaloid acts on the human body about 4 hours. However, the half-life of this compound can vary from 2 to 10 hours. That’s why some people consume caffeinated products in large quantities and do not see any changes in their body while others experience jitters after one Cup of coffee.

The beneficial properties of caffeine

  • Caffeine has stimulating properties. Drinks and dishes in which it is part, suppress the feeling of tiredness, invigorate, help to get rid of the desire to sleep.
  • Products that contain this compound, helping to accelerate response to visual and auditory stimuli.
  • With the use of products containing caffeine, in the brain structures of increasing dopamine levels. As a result, a person who is regularly included in their diet, improves mood, the motivation to active work, increased productivity, mental and physical performance.
  • Caffeine enhances the effect of analgesic drugs. Therefore, it is often included as part of the tablets intended for the treatment of headache and toothache.
  • Caffeinated beverages have anti-inflammatory properties.
  • Moderate caffeine consumption in older age helps to minimize the risk of degenerative diseases (idiopathic Parkinson’s syndrome, Alzheimer’s disease, etc.).
  • Drinks and meals that contains this alkaloid, have mild diuretic properties.
  • Regular consumption of caffeine helps activate the metabolism and accelerate the slimming process.
  • Caffeinated products increase and cause palpitations.
  • Meals containing this compound stimulates the production of gastric juices, help to minimize the risk of disruptions in the digestive system.
  • People who regularly consume caffeinated beverages and meals, less likely to become diabetic.
  • Caffeine contributes to the bronchi, helps to become more frequent and do more deep breathing.
  • Meals containing this alkaloid, have an antispasmodic effect on smooth muscles.
  • With regular consumption of caffeine reduces the chance of developing colorectal cancer and malignant epithelium skin.
  • People who daily drank 1-2 cups of coffee or other drink rich in this compound, rarely suffer from gout.
  • Caffeine cleanses the liver, accelerates the excretion of toxins and other toxic compounds.
  • Contraindications and harms of caffeine

    • Caffeine is contraindicated for people who have previously identified cardiac disease.
    • The abuse of foods and beverages containing this alkaloid may cause increased irritability, unreasonable anxiety, heart rhythm disorders, migraines, depressions, sleep disturbances, tremor, nausea and vomiting.
    • Contraindications to the use of caffeinated food and drinks are insomnia, glaucoma, high blood pressure, nervous irritability, and atherosclerosis.
    • Regular consumption of caffeine may lead to the formation of psychological dependence. In modern medicine this disease is called “caffeinism” or “theism”. Sharp rejection of caffeinated products provoking withdrawal syndrome, manifested by increased irritability and nervousness, hand tremors, sleep disorders, migraines, increased heart rate, involuntary muscle twitching.
    • Caffeine increases the toxicity of certain medicines (e.g. paracetamol).
    • Meals containing this alkaloid, stimulate the synthesis of acid in the stomach. Abuse increases the risk of gastroesophageal reflux and peptic ulcer disease.
    • Caffeine reduces the ability to control fine motor movements.
    • Caffeinated drinks and meals reduce the absorption of calcium in the body and increase the risk of osteoporosis – a progressive chronic disease characterized by reduction in density and strength of bone tissue.
    • Caffeine can provoke the development of mastitis, fibroadenoma and fibrocystic disease. In some cases, this alkaloid increases the painful feeling in the chest when the above-mentioned diseases.
    • Caffeinated foods worsen your appetite.
    • It is proved that regular consumption of caffeine stimulates the growth of cystic masses in patients with polycystic.
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