Coffee Disadvantages For Body

Coffee disadvantages for body


Coffee is a drink made from coffee beans, which are the roasted fruits of the coffee shrub (Coffea arabica), and it is commonly consumed as a stimulant, with millions of people drinking it every day to improve alertness, focus, and reduce weariness. It is used to prevent and cure a variety of health issues. [1] The coffee bush may reach a height of up to 8 meters, and its leaves are bright dark green in color, measuring 6 to 20 cm in length and 2.5 to 6 cm in breadth. It is, however, grown in many tropical regions, including Brazil, Mexico, Colombia, and Ethiopia [3], and is classified as coffee. It is one of the most widely consumed beverages in the world, owing to its high caffeine level, as well as its flavor and aroma, which draw people in. [4]

Coffee drinking has been linked to a variety of health benefits, including improved alertness and clarity of thought, the prevention of colorectal cancer, the prevention of dizziness in the elderly, the prevention of Parkinson’s disease, gallstones, type 1 and type 2 diabetes, and liver disease (cirrhosis and cell carcinoma). Hepatocellular carcinoma, and thus large amounts of coffee, can have a variety of negative effects that have been linked to high caffeine consumption and unhealthy behaviors such as smoking and lack of physical activity, which many people associate with coffee consumption, [4], and this article details the most important damages that result specifically from drinking coffee, as well as scientific opinion on the subject.

coffee causes harm


Caffeine intake of up to 400 mg per day, or about 4 cups of coffee, is deemed safe (alternative caffeine sources should be examined) and does not pose any health hazards, [2]. Eating them in high numbers has numerous negative consequences, including the following:

Increased risk of cardiovascular disease: High coffee consumption has been linked to an increased risk of coronary artery disease and myocardial infarction in several case-control studies. The risk of coronary syndrome is 40-60 percent higher in those who drink 5 or more cups of coffee per day than in people who don’t. Acute coronary syndrome is three times more common in people who drink at least 600 milliliters of coffee per day than in people who do not, while the risk of developing it is three times higher in people who drink less than 300 milliliters per day than in people who do not, and many large prospective cohort studies have found no link between coffee consumption and cardiovascular disease, including a Norwegian study. Coffee consumption can possibly cause a heart attack. The risk of a heart attack increases within an hour after consuming coffee in those with risk factors for heart disease who do not consume coffee regularly. [1]
The effect on people with coronary heart disease: While there isn’t enough scientific research on the effect of coffee on people who already have coronary heart disease, it has been discovered that drinking 10 or more cups of coffee per day increases the risk of sudden cardiac arrest (cardiac arrest). While a study of 1935 people who had previously had a myocardial infarction found no link between coffee consumption and the risk of death within four years, both studies had only a small number of people who drank large amounts of coffee, i.e. 10 cups or more, [4] and it can be assumed that the findings are not conclusive. People with heart problems should avoid drinking 5 or more cups of coffee each day. [1] High risk of stroke: According to a study conducted on a group of men with high blood pressure (who constitute a high-risk category), those who consume at least 700 ml of coffee per day had twice the risk of stroke as those who do not. They drink coffee, despite the fact that some studies have found no link between coffee consumption and the risk of stroke, and there are only a few studies examining the link between coffee and stroke in general, and more scientific research is needed to determine this link, especially in high-risk groups. [4] Boiling (unfiltered) coffee raises total blood cholesterol, bad cholesterol [4], and triglycerides, although filtering coffee reduces these effects. [1] Several studies have found that excessive coffee drinking boosts homocysteine levels in the blood, which is linked to cardiovascular disease, while coffee abstinence for 6 weeks in persons who drink an average of 4 cups of coffee per day leads in an 11 percent reduction. It was also discovered that taking folic acid inhibits the rise in homocysteine produced by coffee, and that the factors that induce high homocysteine are Cafestol and Cahweol, both of which are contained in unfiltered coffee. [4] Scientific research have shown that drinking coffee has a direct and acute effect on raising blood pressure in both those with normal and high blood pressure, as it was discovered that eating 200-250 mg of caffeine (the amount present in 2-3 cups of coffee) raises systolic blood pressure. Coffee boosts diastolic blood pressure by 4-13 mm Hg in those with normal blood pressure, and this impact can be more pronounced in people with high blood pressure, albeit it has been discovered that chronic coffee drinking creates resistance to its effect. However, even in people who drink coffee on a daily basis, this effect is not complete, and the results of studies on the effect of coffee consumption on the long-term risk of developing high blood pressure are less clear, with some studies finding a direct relationship, others finding an inverse relationship, and others finding no correlation, and in general, the long-term association of coffee consumption with the risk of developing high blood pressure is small. More scientific research is needed to clarify this link. [4] While some preliminary case-control studies have discovered a link between coffee consumption and the risk of pancreatic, bladder, and ovarian cancer, newer, better-designed studies have found no link between coffee or caffeine consumption and these cancers, as well as stomach, breast, and prostate cancer. [4] Coffee consumption reduces calcium absorption and increases calcium excretion in urine, [1], and many studies have found that high coffee consumption lowers bone mineral density and increases the risk of osteoporosis and fractures, while others have not found a link, especially when adequate calcium is consumed. [4] The polyphenol chemicals in coffee bind iron and prevent it from being absorbed; it has been discovered that drinking 150-250 ml of coffee with a meal reduces non-heme iron absorption by 24-73 percent, and that quitting coffee enhances iron absorption from supplements. To enhance iron absorption, coffee should be avoided with meals. [4] Coffee includes chemicals that bind to zinc and inhibit its absorption, and despite the absence of significant studies studying the effect of coffee consumption on zinc status in the human body, coffee was found to lower bioavailability in an in-vitro investigation. Zinc levels in the blood are increased by 21-32 percent, and one study found that consuming coffee inhibits zinc absorption, while another study found that discontinuing coffee did not enhance zinc levels in the blood. [4] According to certain research, caffeine and coffee use (400-800 mg caffeine per day) slows conception. Some studies have not identified a link between consuming coffee and fertilization, however based on the knowledge currently available from scientific studies, it is better for women who are having problems fertilizing to avoid caffeine in amounts larger than 300 mg per day. [4] Some research have discovered a link between excessive coffee consumption and miscarriage. [4] Several studies have discovered that eating 200-400 mg of caffeine per day during pregnancy is linked to a 100-gram reduction in birth weight. Research into the link between caffeine consumption and prenatal growth retardation. [4] Nursing moms who drink a lot of coffee have irritation in their babies, sleep disturbances, and upset stomachs. [1]
A child should not consume more than 2.5 mg of caffeine per kilogram of body weight each day. Irritability, sleep disturbance, and anxiety have all been linked to eating more than 3 mg/kg of body weight per day. There isn’t enough data on the impact of excessive coffee consumption on youngsters. [4]
Coffee drinking may raise the risk of caffeine interaction with drugs taken by the elderly, and coffee consumption may increase the risk of osteoporosis and fractures, which is already high in the elderly, which compounds this risk. Coffee use may create more harmful consequences in the elderly, especially if they are deficient in calcium and vitamin D, according to certain research. [4]


The negative consequences of coffee


In the majority of adults, coffee is regarded harmless, [1], but excessive doses might produce symptoms such as irregular heartbeat, palpitations, sleeplessness, anxiety, irritability, tremors, headache, tinnitus, abdominal discomfort, nausea, vomiting, and diarrhea. [1] 6 cups of coffee per day can lead to coffee addiction, which manifests itself as anxiety and irritability. [1]

Caffeine withdrawal symptoms can occur in persons who have consumed coffee for a long time, even if their daily dose was small. Headache, weariness, dizziness, irritability, difficulty concentrating, and an unpleasant mood are some of the symptoms. Coffee withdrawal can produce nausea and muscle discomfort (myalgia), however withdrawal symptoms are less severe when caffeine is reduced gradually rather than abruptly. [4]

Coffee contraindications


When drinking coffee, use caution in the following situations: [1]

Pregnancy and breast-feeding: For pregnant women, drinking two cups or less of coffee per day, containing 200 mg of caffeine, is generally considered safe; however, drinking more than that increases the risk of miscarriage, premature birth, and low birth weight, with these risks increasing as the amount of coffee consumed increases. It is okay for nursing women to drink a cup or two of coffee each day before becoming pregnant, but bigger amounts can cause discomfort in the infant’s digestive system, as well as restlessness and sleep issues.
Children: Caffeinated coffee is not recommended for children because it has more severe adverse effects.
Anxiety disorders: coffee drinking can exacerbate these symptoms.
Coffee has been shown to aggravate bleeding issues.
As previously stated, drinking unfiltered coffee raises blood lipids and homocysteine levels, increasing the risk of cardiovascular disease.
Caffeine can produce diarrhea if used in significant amounts.
Irritable Bowel Syndrome: Caffeine in high doses can aggravate IBS symptoms and cause diarrhea.
Glaucoma: Caffeinated coffee causes a rise in intraocular pressure that lasts for at least 90 minutes after consumption.
High blood pressure: Coffee can elevate blood pressure in those with high blood pressure, however the effect is less noticeable in frequent coffee drinkers.
Caffeine causes osteoporosis by increasing the quantity of calcium expelled in the urine. Calcium loss can be replaced by taking supplements, and people with osteoporosis should not take more than 300 mg of caffeine each day (equal to 2-3 cups of coffee). Dietary calcium, as well as postmenopausal women with a hereditary condition that inhibits vitamin D from being well digested, should be avoided.


interactions between drugs


Caffeine interacts with a wide range of medications, including the ones listed below: [1]

Coffee interacts with ephedrine since it is a stimulant and can cause negative side effects.
Some drugs, such as Adenosine, which is used to keep the heart in balance, Alendronate, Dipyridamole, Lithium (sudden discontinuation of coffee produces an increase in the drug’s negative effects), and Pentobarbital, are affected by caffeine. Antidepressants (Tricyclic Antidepressants), such as (Amitriptyline), should be avoided one hour before and two hours after drinking coffee, as well as phenothiazines, which should be avoided one hour before and two hours after drinking coffee (Emipramine). Caffeine boosts blood sugar levels, which makes these drugs less effective.
Some drugs, such as alcohol and antibiotics like (Ciprofloxacin), (Enoxacin), (Norfloxacin), (Sparfloxacin), and (Sparfloxacin), limit the body’s ability to get rid of caffeine and increase the level of caffeine in the blood and its negative effects (Grepafloxacin). Disulfiram, estrogen, Fluvoxamine, Verapamil, Levothyroxine, and to a lesser extent, contraceptive medications, Cimetidine, Fluconazole, Mexiletine, and others have this impact (Terbinafine).
Coffee lowers the body’s ability to eliminate several drugs, such as Clozapine and Riluzole, raising their level in the body and increasing the risk of side effects.
Some medications, such as antidepressants (MAOIs) like (Phenelzine), (Tranycypromine), and others, as well as blood thinners like aspirin, (Clopidogrel), and (Diclofenac), ibuprofen, Naproxen, Dalteparin, Enoxaparin, Heparin, Warfarin, and others, Phenylpropanolamine, Riluzole (Theophylline).

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