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What are the health benefits of coffee? A cup of coffee in the morning may pack more than just an energy boost. More and more research is emerging to suggest that there may be several health benefits associated with drinking this dark black beverage, from helping prevent diabetes to lowering the risk of liver disease. The consumption of coffee goes back centuries. In 17th century England the popularity of the drink gave rise to a number of coffee houses which were dubbed 'penny universities', because with one penny a person could buy a cup of coffee and have intellectually stimulating conversations with other people.1 Nowadays, with over 400 billion cups consumed every year, coffee is one of the world's most popular drinks. But what makes it special? This MNT Knowledge Center feature is part of a collection of articles on the health benefits of popular foods. It provides a nutritional breakdown of coffee, details of the potential health benefits associated with its consumption, and any possible risks you should be aware of. Nutritional breakdown of coffee Calorie count Regular black coffee (without milk or cream) has a very low calorie count. A typical cup of black coffee only contains around 2 calories. However, if you add sugar and milk, the calorie count can shoot up. Antioxidants Coffee is the number one source of antioxidants in the U.S., according to researchers at the University of Scranton. Joe Vinson, Ph.D., lead author of the study, said that "Americans get more of their antioxidants from coffee than any other dietary source. Nothing else comes close."2 The authors of the study emphasize moderation, stating that only one or two cups a day appear to be beneficial. Caffeinated and decaffeinated versions provided nearly the same levels of antioxidants. Health benefits of coffee The potential health benefits associated with drinking coffee include: protecting against type 2 diabetes, Parkinson's disease, liver disease, liver cancer, and promoting a healthy heart.3 Coffee may protect against type 2 diabetes Coffee may be protective against type 2 diabetes. Researchers at UCLA identified that drinking coffee increases plasma levels of the protein sex hormone-binding globulin (SHBG). SHBG controls the biological activity of the body's sex hormones (testosterone and estrogen) which play a role in the development of type 2 diabetes.4 Dr. Simin Liu, one of the authors of the study, said that an "inverse association" exists between coffee consumption and risk for type 2 diabetes. Increased coffee consumption may reduce risk of type 2 diabetes - the Harvard School of Public Health (HSPH) researchers gathered data from three studies. In these studies, the diets of the participants were evaluated using questionnaires every 4 years, with participants who reported having type 2 diabetes filling out additional questionnaires. In total, 7,269 study participants had type 2 diabetes. The researchers found that the participants who increased their coffee intake by more than one cup a day (on average, an increase of 1.69 cups per day) over a 4-year period had an 11% lower type 2 diabetes risk over the subsequent 4 years, compared with people who did not change their intake. Coffee may help prevent Parkinson's disease Researchers in the U.S. carried out a study that assessed the link between coffee consumption and Parkinson's disease risk. The authors of the study concluded that "higher coffee and caffeine intake is associated with a significantly lower incidence of Parkinson's disease".5 In addition, caffeine in coffee may help control movement in people suffering from Parkinson's, according to a study conducted at the Research Institute of the McGill University Health Centre (RI MUHC) that was published in the journal Neurology.6 Coffee may lower the risk of liver cancer Italian researchers found that coffee consumption lowers the risk of liver cancer by about 40%. In addition, some of the results suggest that if you drink three cups a day, the risks are reduced by more than 50%.7 The lead author of the study, Dr. Carlo La Vecchia, from Milan's Istituto di Ricerche Farmacologiche Mario Negri, said "our research confirms past claims that coffee is good for your health and particularly the liver." Coffee may help prevent liver disease Regular consumption of coffee is linked to a reduced risk of primary sclerosing cholangitis (PSC), a rare autoimmune disease of the bile ducts in the liver.8 In addition, coffee consumption can lower the incidence of cirrhosis of the liver for alcohol drinkers by 22%, according to a study at the Kaiser Permanente Medical Care Program, California, USA. The authors of the study concluded that the results "support the hypothesis that there is an ingredient in coffee that protects against cirrhosis, especially alcoholic cirrhosis."9 Research published in the journal Hepatology in April 2014, suggests that drinking coffee is linked to a decreased liver cirrhosis death risk. The researchers suggest that drinking two or more cups of coffee every day can reduce the risk of death from liver cirrhosis by 66%.16 Coffee may be good for the heart Researchers at Beth Israel Deaconess Medical Center (BIDMC) and Harvard School of Public Health, concluded that drinking coffee in moderation protects against heart failure. They defined 'in moderation' as 2 European cups (equivalent to two 8-ounce American servings) per day.10 People who drank four European cups on a daily basis had an 11% lower risk of heart failure, compared to those who did not. The authors stressed that their results "did show a possible benefit, but like with so many other things we consume, it really depends on how much coffee you drink." Recent developments on the benefits of coffee from MNT news Coffee may reduce stroke risk. A study monitored coffee consumption of 83,269 Japanese adults aged 45 to 74 years and found that people who drank coffee on a daily basis were at a 20 percent lower risk of stroke compared to those who did not drink it often.11 High coffee intake may help against prostate cancer. According to a study published in the journal Cancer Causes and Control, men who drank four or more cups of coffee a day had 59% reduced risk of prostate cancer recurrence and/or progression than those whose coffee consumption was just one cup a week or less.12 Can coffee protect our eyesight?. Research published in the Journal of Agricultural and Food Chemistry found that drinking coffee may protect against deteriorating eyesight and even blindness. Risks Drinking too much coffee can result in some very unpleasant adverse effects. According to a study by researchers at the University of Oklahoma, "caffeine can cause anxiety symptoms in normal individuals, especially in vulnerable patients, like those with pre-existing anxiety disorders."13 In addition, "caffeine use is also associated with symptoms of depression due to either a self-medication theory, or a theory that caffeine itself causes changes in mood." Women who plan on becoming pregnant should be cautious. Researchers from the University of Nevada School of Medicine reported in the British Journal of Pharmacology that regular coffee may reduce a woman's chances of becoming pregnant.14 Medical News Today examined the positive and negative effects of drinking coffee in an article in July 2012, Drinking Coffee: More Good Than Harm?. Recent developments on the risks of coffee from MNT news Caffeine can disrupt sleep hours later. It might be a good idea to avoid caffeine in the late afternoon and at night as it can have a very detrimental effect on one's sleep.15 Written by Joseph Nordqvist Copyright: Medical News Today Not to be reproduced without the permission of Medical News Today.
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Toči i ločiPet razloga da pijete kavu Turska ili Cappuccino? Nije važno, samo ako ima kofeina. Kava je, naime, osvojila simpatije nutricionista i znanstvenih krugova koji je u zadnjih nekoliko godina ne prestaju hvaliti. Liječnici i nutricionisti su znali reći svašta na račun kave, ali sad se već duže slažu da je kava ipak dobra za nas. Počujte zato pet dobrih razloga da popijete šalicu kave: Smanjuje depresiju kod žena Nova studija provedena na Sveučilištu Harvard pokazuje da žene koje redovno piju kavu - onu s kofeinom - imaju 20 posto manji rizik da obole od depresije nego one koje ne piju kavu. S ovim se slaže i istraživanje da ispijanje kava smanjuje i stopu suicida. Smanjuje rizik od smrtonosnog oblika raka prostate kod muškaraca Još jedna studija s Harvarda pokazuje da muškarci koji piju šest ili više šalica kave imaju 60 posto manji rizik od razvoja najopasnijeg oblika raka prostate. Istovremeno imaju i 20 posto manje šanse od formiranja bilo kojeg oblika raka prostate, u usporedbi s muškarcima koji ne piju kavu. Može štiti od razvoja raka glave i vrata Studija provedena na Sveučilištu Utah pokazuje da osobe koje piju više od četiri šalice kave na dan imaju 39 posto manji rizik od razvoja raka usne šupljine i grkljana, u usporedbi s onima koji kavu uopće ne piju. Redovno pijenje kave povezuje se i s manjim rizikom od razvoja raka mozga te smanjenim rizikom od razvoja raka crijeva, raka jetre i ciroze. Može nas zaštiti od Alzheimerove bolesti Nekoliko je studija proučavalo utjecaj kofeina na mozak. Eksperimenti na miševima pokazali su da kofein značajno smanjuje abnormalnosti proteina povezanih s Alzheimerovom bolesti. Kod miševa koji su već pokazali simptome Alzheimerove bolesti kofein je čak usporio propadanje i potaknuo obnavljanje stanica mozga, podaci su Florida Alzheimer's Disease Research Centre. Čini se da štiti od dijabetesa Brojne studije ukazuju da kava štiti od razvoja dijabetesa tipa 2, iako precizan mehanizam zaštite nije sasvim jasan znanstvenicima. Archives of Internal Medicine ističe analizu koja je pokazala da ljudi koji piju tri do četiri šalice kave na dan imaju 25 posto manje šanse da obole od dijabetesa tipa 2, nego oni koji piju manje od dvije šalice dnevno. Vezani članci: Potvrđeno: Kava i dječja hrana opasne za zdravlje! Oružje protiv bora i celulita držite u rukama svaki dan! Komentari web preporuke cosmopolitan.hrIdeal lijepe žene roditelji.hrNevjerojatna rijetkost: identične trojke sensaklub.hrMjesečev horoskop od 9. Krenizdravo.comKako povećati penis - što djeluje, a što ne?