Caffeine Content in Coffee

Caffeine is chemically a xanthine alkaloid that acts as stimulant of the central nervous system. It ranks as the world's most popular psychoactive substance. Medically, caffeine is referred to as trimethylxanthine. In the United States, about 90 percent people consume caffeine every day, in one way or the other. We all have a fair idea regarding the caffeine content in coffee. Besides coffee, caffeine is present in other natural plant sources like tea, kola and guarana. Among the several food items, coffee beans is the main source for caffeine worldwide.

Though the FDA enlisted caffeine as a substance safe for consumption, consuming a high concentration is harmful for health. In some people, caffeine intake causes certain adverse effects like headache, sleep disorder, nervousness and irritability. Considering the various caffeine side effects, it is very important for us to learn the pros and cons of caffeine intake and the amount of caffeine in coffee and other beverages.

Caffeine Content in Coffee
The diuretic and stimulative properties of caffeine induce certain metabolic effects. Hence, consuming caffeinated beverages like tea, coffee, soft drinks and energy drinks aids in overcoming drowsiness and increasing alertness. The ingested caffeine is not retained in the body, but its effects are observed after 15 minutes and last for as long as 6 hours. This is the reason as to why, many people state that they cannot start their day without a cup of coffee in the morning. So, are you aware about the amount of caffeine content in a cup of coffee?

The amount of caffeine content in coffee varies significantly based on the coffee type and the mode of brewing. The usual drip-brewed coffee contains approximately 100-135 mg per cup (8 ounce size), while the espresso contains about 30 mg per ounce coffee and instant coffee contains about 95 mg per cup (8 ounce size). On a general note, drinking two to three brewed coffee cups a day is not harmful for people who are not hypersensitive to caffeine. Read more on nutrition facts for coffee.

Caffeine Sensitivity
Caffeine sensitivity is the term that refers to the body's responses towards caffeine intake. To be precise, the amount of caffeine that stimulates a person may vary, depending upon the body size and the sensitivity. The smaller the size of the individual, the lesser is the caffeine amount to produce effects and vice versa. People who take coffee several times a day require more concentration of caffeine than first time coffee drinkers to experience the same effect.

Decaffeinated Coffee and Other Products
It is to be borne in mind that decaffeinated coffee also contains caffeine. Nevertheless, the amount of caffeine in decaffeinated coffee is comparatively lesser (about 5-7 mg per 8 ounce cup) than the regular coffee. In medical science, caffeine is administered as a mild diuretic and cardiac stimulant. Commercially, caffeine is extracted as a white, crystalline and bitter powder, which is then used in various processed food items and pharmaceutical products. For example, pain killers, diet pills and common cold medications are formulated by using caffeine in specific concentrations.

For more information regarding caffeine effects on the body refer to:

• Negative Effects of Caffeine on the Body
• Caffeine Withdrawal Remedy

Overall, caffeine is a highly addictive substance and is referred to as a commonly consumed drug. It works in the same brain stimulating mechanism as that of other strong drugs, but in a subtle way. As per studies, ingesting a very high dose of caffeine is fatal. Taking 10 gm of caffeine, which accounts to 170mg/kg of the body weight can lead to life-threatening symptoms. To be on the safer side, take a note of the caffeine content in coffee and keep it minimum, not more than 2-3 cups per day.