Coffee Diet

Possible Risk Factors of the Coffee Diet

Many new fad diets have appeared in recent years and one of these is the coffee diet. The coffee diet claims that drinking large amounts of black coffee will curb your appetite and boost your metabolism. These effects are supposed to be due largely to the high amount of caffeine that the dieter would be ingesting every day, and supported by the fact that many diet pills in the past contained caffeine in their list of ingredients.

While coffee lovers that want to lose some weight might jump at the idea of starting the coffee diet, there are some significant risk factors involved that people should be aware of. If you plan to start the diet anyway, you need to speak to your doctor and make sure that you do not have any underlying health problems that could further increase the risk of damage to your body should you start this diet.


Anyone that has donated blood should be familiar with the food and drinks that are to be avoided prior to the planned donation day. Coffee is at the top of this list because it blocks your body’s ability to absorb iron. Iron is needed to help your body make hemoglobin, and when it doesn’t have enough of this protein, anemia sets in. Even people that eat the recommended daily amount of iron can become iron-deficient if they ingest too much iron-blocking foods and beverages.


Drinking coffee also increases the amount of calcium that is flushed out of your body in your urine. While normal, healthy people can normally tolerate the loss of calcium, postmenopausal women, people that can’t process vitamin D normally, and others at risk for osteoporosis need to be particularly careful in regards to coffee consumption.

With calcium supplements, a person with or at risk for osteoporosis can drink 2 – 3 cups of coffee a day. The coffee diet, however, suggests a much higher amount of coffee consumption.


Although normal consumption is considered safe, drinking 6 or more cups of coffee daily can lead to caffeine addiction.  Since caffeine is generally considered safe, many people snub their noses at the idea of a caffeine addiction. However, when you consider that as the caffeine wears off you get fatigued and thus drink more caffeine, it’s easy to see how drinking coffee can be a vicious cycle.

There are several side effects visible in a person with a caffeine addiction. As previously stated, the addict will become very fatigued as soon as their body filters through the caffeine. If more caffeine is not ingested, the person will go through withdrawals. Withdrawal symptoms include excruciating migraine headaches, nausea, jitters, mood swings, and even muscle pain. The coffee diet essentially ensures that you will become addicted if you follow it for an extended length of time, which you would need to in order to see results.



Coffee is a diuretic, so despite being a beverage, don’t count on it to hydrate you. In order to maintain proper hydration levels in the body, people that go on this diet have to drink at least 1.5 liters of water a day, on top of the numerous cups of coffee they will already be drinking.

Brown Teeth

There is no way around it—coffee is horrible for your teeth. While it will not cause them to rot, drinking coffee this frequently will cause them to turn brown and be stained. Once your teeth are stained, it takes a lot of time and money to get them back to normal whiteness. Some people may even need to have their teeth professionally cleaned to remove the stains.