Caffeinated drinks

caffeinated drinksCaffeinated drinks are the beverages which contain caffeine.



Caffeinated drinks is the most consumed psychoactive substance (a substance that stimulates the central nervous system) and therefore a drug. It was estimated that about 80% of the world’s population consume caffeine every day. Caffeine is so popular, because of its stimulating effect on the brain. The consumption of caffeine may alleviate fatigue, increase the feeling of wakefulness and improve concentration and focusing.

However, according to the researches 5 grams of caffeine (equivalent to 30-40 cups of regular coffee) may cause the death of the consumer.

According to the FDA, the amount of caffeine found in different beverages and other products varies, from 0.0004% (for example, chocolate milk, which contains 1 mg per 8 oz) to 0.169% (for example, a strong Caffeinated drinks)

Espresso coffee which contains 240 mg/6 Oz).

Related: Caffeine Might Be Able to Fight Inflammation that Causes Heart Issues

Natural caffeinated beverages

Tea and coffee are the most widely spread beverages in the world, both containing caffeine. Coffee is usually prepared from the beans of the Coffea spp., the most common is Coffea arabica. Camellia sinensis leaves are typically used to prepare tea. Herbal teas are prepared of mint, Chamomile, Echinacea and other herbs and fruits.

  • Coffee, brewed – 102 -200 milligrams per cup;
  • Coffee, instant – 27-173 milligrams per cup;
  • Coffee, decaffeinated – 3-12 milligrams per cup;
  • Starbucks Espresso, doppio – 150 milligrams per cup;
  • Tea, instant – 28 milligrams per cup;
  • Tea, brewed – 40-120 milligrams per cup;
  • Tea, canned iced – 22-36 milligrams per 12 ounces (oz);
  • Nestea – 26 milligrams per 16 oz;


Soft drinks

Soft drinks (also known as carbonated beverages, coke, cool drinks or cold drinks) include non-alcoholic beverages which contain carbonated water, sweetener, and a flavoring. Since the invention of soft drink caffeine has been added to them. About 70% of soft drinks in the US contain caffeine. An upper limit for caffeine in soft drinks is at the level of 0.02% (20 mg in 100 ml).

  • Caffeine-containing cola and other soft drinks – 23-71 milligrams per 12 oz;
  • Pepsi – 38 milligrams per 12 oz;
  • Coca-Cola Classic – 35 milligrams per oz;


Energy drinks

Energy drinks are beverages which contain psychoactive substances, usually high doses caffeine, to provide mental and physical arousal. Energy drinks may also contain sweeteners, Taurine amino acids, Guarana, Ginseng herbs yerba mate, açaí maltodextrin, inositol, carnitine, creatine, glucuronolactone, sucralose and ginkgo biloba. Some of them are carbonated, the others are not.

  • Red Bull – 80 milligrams per 8,3 oz;
  • Spile Shooter – 300 milligrams per 8,4 oz;
  • Cocaine (energy drink) – 288 milligrams per 8,4 oz;
  • Monster Energy – 160 milligrams per 16 oz;
  • Rockstar Energy Drink – 80 mg per 8 oz;
  • Amp – 74 mg per 8,4 oz;

It was estimated that the average of energy drink consumers are at the age of 13-35 years.

There has been recently a lot of controversial discussions about alcohol- containing energy drinks (e.g., Vodka Red Bull) regarding their safety. The combination of alcohol and caffeine may lead to the delayed feeing of ebriety.


Alcoholic beverages

Caffeine additives at up to 0.2 mg/ml are found in alcoholic beverages as a flavoring agent. Coffee-flavored alcoholic beverages include: Allen’s  Coffee Brandy, Aruba Arehucas, Vibe Robusta Coffee Liqueur, Bols Coffee Liqueur, Cafe Oriental, Coloma, Kona Gold, Lauterer Luft,

Leroux Coffee-Flavored Brandy, Mr. Boston Coffee-Flavored Brandy and many others.

  • Beer/wine – 71 mg caffeine in 255 ml;
  • Malt liquor – 47 mg caffeine in 235 ml;

Caffeine tolerance test

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