
My dad recently shared with me that he had been tired lately. He had a doctor's appt. in which the doctor realized he had an irregular heartbeat..."arrhythmias". He asked my dad if he consumed a lot of caffeine. My dad said he drinks decaf coffee but does drink soda pop and enjoys a lot of chocolate. His doctor cut off his caffeine and at his next visit - his heartbeat was normal!
Many of our health issues and problems are caused by our bad habits that perhaps we are not willing to break! I am thankful that my dad broke his caffeine habit and is protecting his health! He said he did not realize how much caffeine he consumed and the way it affected his health. And yes, he says he is not tired like he had been! Praise the Lord!
I have included some helpful information on caffeine. Especially helpful is the list of how many milligrams are in various foods and drinks.
What exactly is caffeine? Caffeine (C8H10N4O2) is a chemical stimulant of the central nervous system. It belongs to a class of organic compounds called alkaloids, which also include morphine, codeine, LSD, cocaine and nicotine. Caffeine is found in a variety of products, including coffee, tea and chocolate. Varying amounts of it can be found in over 60 plants, including the following:
- Cocoa beans
- Coffee beans
- Cola (kola) nuts
- Guarana
- Mate
- Tea leaves
People have been consuming caffeine since the first pot of tea was brewed in China around 2700 B.C. It is widely used for its ability to help people wake up, stay alert, maintain energy levels and respond quickly. Some researchers claim that caffeine is non-addictive, whereas other researchers declare it to be the fifth most addictive substance in the United States (following heroin, alcohol, cocaine and nicotine).
How does caffeine effect cardiovascular health? Even though there is no conclusive evidence, some studies have suggested that high levels of caffeine consumption can increase the risk of certain cardiovascular conditions. Caffeine can:
- Cause irregular heart rhythms (arrhythmias)
- Increase the heart rate
- Increase the rate of breathing
- Increase the force of the heartbeat
- Raise levels of stress hormones
- Raise blood pressure, temporarily
Critics argue that these effects will only be seen in people who are either oversensitive to caffeine, or whose bodies have not adjusted to caffeine because they rarely consume it.
Other research suggests that drinking coffee is associated with higher cholesterol levels. However, this effect does not seem to be caused by unfiltered or instant coffee, suggesting that chemicals other than caffeine may be responsible. To be on the safe side while the controversy continues, patients who have had a heart attack may be encouraged by their physicians to reduce or eliminate caffeine use until a final conclusion has been made.
How much caffeine is considered safe? Physicians know the ways in which caffeine may interact with other medications that patients may be taking. Therefore, patients are encouraged to talk with their physician about caffeine. In general, most experts encourage people to use caffeine only moderately between 250 and 350 milligrams per day because there are very few studies that have associated moderate caffeine use with health risks. However, extraordinarily high caffeine intake (150 milligrams per kilogram of body weight) can be fatal, and even moderate caffeine intake can create symptoms of caffeine overdose in some people. Symptoms of caffeine overdose include the following:
- Flushed face
- Frequent need to urinate (diuresis)
- Rapid heart rate (tachycardia)
- Restlessness or feeling "jittery"
- Shakiness
- Throwing up (vomiting)
- Trouble sleeping (insomnia)
- Upset stomach (nausea)
More severe cases of caffeine overdose can also include symptoms such as delirium (acute mental confusion) and visual disturbances. In rare cases, caffeine overdose results in death.
Amount of caffeine in common foods, drinks and medications
Varying amounts of caffeine are present in over 200 foods, drinks and non-prescription medications. Examples are presented below:
| Food | Amount of Caffeine (in milligrams) |
| Unsweetened chocolate, 1 oz. | 26 |
| Chocolate ice cream, ½ cup | 2 |
| Dark (semi-sweet) chocolate, 1 oz.<> | 5-35 |
| Milk chocolate, 1 oz. | 1-15 |
| Drink | Amount of Caffeine (in milligrams) |
| Brewed coffee, 8 oz. | 60-160 |
| Brewed American tea, 8 oz. | 20-90 |
| Brewed imported tea, 8 oz. | 25-110 |
| Chocolate milk, 8 oz. | 2-7 |
| Decaffeinated coffee, 8 oz | 2-4 |
| Espresso, 2 oz | 100 |
| Iced tea, 8 oz. | 9-50 |
| Instant coffee, 8 oz. | 2-4 |
| Instant tea, 8 oz. | 24-31 |
| Medication | Amount of Caffeine (in milligrams) |
| Aspirin 1 Tablet | 0 |
| Appetite Supressant, 1 Tablet | 200 |
| Medication to help people to stay alert | 100-200 |