The Mystery Of Coffee And Diabetes
Is coffee good or bad for diabetes? Some studies show that coffee is protective, while others say it’s harmful. Some say decaf is better; others say it’s worse. Let’s try to sort this out. For years, various studies have reported that coffee drinkers are less likely to develop Type 2 diabetes. A recent UCLA study found that “women who drink at least four cups of coffee a day are less than half as likely to develop diabetes as non-coffee drinkers.” Lead scientist Simin Liu said that coffee may improve the body’s tolerance to glucose by increasing metabolism or lowering insulin resistance. In 2008, Diabetes Self-Management blogger Amy Campbell reported on several other studies showing benefits for coffee. A study published in Diabetes Care in 2006 followed about 900 adults, roughly 300 of whom had prediabetes, for eight years. The people who drank caffeinated coffee had a 60% lower risk of getting diabetes than those who didn’t drink coffee. Another Diabetes Care study published the same year looked at more than 88,000 women in the Nurses’ Health Study II. It found that women who drank two or more cups of coffee daily had a lower risk (slightly more than half the risk) of getting diabetes than those who drank just one cup of coffee daily, or no coffee at all. And it didn’t matter whether the coffee was regular or decaf. So right there you have a disagreement about caffeine. Meanwhile, other studies have shown that coffee, or the caffeine in coffee, raises after-meal (postprandial) blood glucose levels up to 20% in people with diabetes. These studies have not been large but have received a lot of attention. In the most-reported study, from Duke University, ten subjects, all with diabetes, were tested — given either caffeine capsules or a placebo (inacti Continue reading >>
5 Cups Of Coffee A Day For Type 2 Diabetes?
Coffee is one thing that we all love but can’t really decide if it’s good for us or not. Research in the past has shown that coffee and diabetes don’t go well together. However, a new research, funded by American Diabetes Association (ADA), indicates that coffee is good for: Cardiovascular diseases(myocardial infarction, high cholesterol…) Cancer (prostate, breast…) Parkinsons disease According to the research conducted by Marilyn Cornelis, PhD, from NFU School of Medicine: (Of all the foods we consume) coffee has the most potential to prevent type 2 diabetes. (Source: Diabetes Forecast) What is more, WHO has released guidelines for dietary recommendation for Americans for 2015-2020, in which they state that 3-5 cups of coffee is associated with health benefits (including for type 2 diabetes). Seems like both the latest research and even WHO is pro-coffee. I know I’m pro-coffee myself, being an avid coffee drinker and I think it’s great I’m doing something good for myself by having a cup of coffee a day! Let alone 5 cups! You can download the WHO statement here, I’ve copied the section about coffee for you here (be aware what is says about how much sugar and milk you should add to coffee): Let me pour myself another cup of coffee right now (and according to the coffee and diabetes research, you should grab a coffee yourself) because we’re going to see: Why is coffee good for us? What does other research about coffee and diabetes suggest How much sugar and milk I personally add to my coffee? I’ll reveal my own easy recipe for diabetes-friendly coffee – I’m drinking one right now! In short, do coffee and diabetes go hand in hand together? Let’s find out: Coffee and Diabetes – An Age Old Question I don’t really know anybody that wouldn’t l Continue reading >>
Coffee’s Effect On Diabetes
Part 1 of 8 Highlights For people without diabetes, coffee may help reduce the risk of developing diabetes. Caffeine has been shown in the short term to increase both glucose and insulin levels. Because of this, people with diabetes should be cautious when consuming coffee. Once sweetener is added to coffee, it removes the benefits of diabetes prevention. It can actually increase your risk of developing diabetes. Coffee was once condemned as being bad for your health. However, there’s growing evidence that it may protect against certain kinds of cancers, liver disease, depression, and Parkinson’s disease. There’s also compelling research that increasing your coffee intake may actually lower your risk for developing type 2 diabetes. This is good news for those of us who can’t face the day until we get in our cup of java. However, for those who already have type 2 diabetes, coffee could have adverse effects. Whether you’re trying to lower your risk, you have diabetes, or you just can’t go without your cup of joe, learn about coffee’s effects on diabetes. Part 2 of 8 According to the Mayo Clinic, diabetes is a disease (or group of diseases) that affects how your body processes blood glucose (sugar). Blood glucose is important because it is what fuels your brain and gives energy to your muscles and tissues. If you have diabetes, that means that you have too much blood glucose circulating in your body and it can cause serious health concerns. There are a number of different factors that can cause diabetes. Chronic diabetes types are type 1 and type 2. Other types include gestational diabetes, which occurs during pregnancy but tends to go away after birth. Another is prediabetes, which means your blood glucose levels are higher than usual but not as high as woul Continue reading >>
Effects Of Coffee Consumption On Fasting Blood Glucose And Insulin Concentrations
Randomized controlled trials in healthy volunteers Higher habitual coffee consumption was associated with higher insulin sensitivity (1) and a lower risk for type 2 diabetes (2–6) in diverse populations. In contrast, short-term metabolic studies showed that caffeine intake can acutely lower insulin sensitivity (7–9) and increase glucose concentrations (10–15). Randomized intervention studies are needed to examine whether tolerance to these acute effects develops after longer-term consumption (16). We therefore examined the effects of coffee and caffeine on fasting blood concentrations of glucose and insulin over 2–4 weeks in two crossover studies in healthy volunteers. RESEARCH DESIGN AND METHODS The studies were approved by the TNO Nutrition and Food Research Medical Ethics Committee, and all participants gave informed consent. The trials were originally designed to study the effects of coffee and caffeine on plasma concentrations of homocysteine, and the study designs have been reported in detail previously (17,18). Participants were regular coffee consumers (more than five cups/day) and did not have known diabetes. The first study was a 4-week crossover study that compared the effects of regular paper-filtered coffee consumption with that of coffee abstinence. A total of 40 volunteers used 1 l of coffee (70 g coffee grounds) for 4 weeks and abstained from coffee for 4 weeks in random order. Fourteen participants did not complete the trial because of nausea and restlessness (n = 7), possible susceptibility to adverse effects of caffeine intake (n = 3), or reasons unrelated to treatment (n = 4). Thus, 26 participants were included in the analysis. The second study had a Latin-square design with three treatments given in random order for 2 weeks each: caffeine ( Continue reading >>
- Caffeinated and Decaffeinated Coffee Consumption and Risk of Type 2 Diabetes: A Systematic Review and a Dose-Response Meta-analysis
- Postprandial Blood Glucose Is a Stronger Predictor of Cardiovascular Events Than Fasting Blood Glucose in Type 2 Diabetes Mellitus, Particularly in Women: Lessons from the San Luigi Gonzaga Diabetes Study
- Estimating Concentrations of Chromium and Manganese in Diabetes Patients
Does Caffeine Affect Blood Sugar?
The average U.S. adult consumes about two 8-ounce cups (474 milliliters) of coffee a day, which can contain around 280 milligrams of caffeine. For most young, healthy adults, caffeine doesn't appear to noticeably affect blood sugar (glucose) levels, and consumption up to 400 milligrams a day appears to be safe. Some studies suggest that drinking coffee, caffeinated and decaffeinated, may actually reduce your risk of developing diabetes. If you already have diabetes, however, the impact of caffeine on insulin action may be associated with higher or lower blood sugar levels. For some people with diabetes, about 200 milligrams of caffeine — or the equivalent of one to two 8-ounce cups (237 to 474 milliliters) of plain, brewed coffee — may cause this effect. Caffeine affects every person differently. If you have diabetes or you're struggling to control your blood sugar levels, limiting the amount of caffeine in your diet may provide a benefit. Continue reading >>
How Does Coffee Affect Diabetes?
With diabetes, diet is of the utmost concern. What people with diabetes eat and drink directly affects their blood glucose levels. We often concentrate on food, but what people drink is just as important. For many people, the only way to get the day started is with a cup of coffee. Thankfully, recent studies have shown that drinking coffee may actually reduce the risk of getting diabetes. But what about for those who already have diabetes? Is coffee, or the caffeine in coffee, a problem for those with diabetes? Two 8-ounce cups of coffee contain about 280 milligrams of caffeine. For most young healthy adults, caffeine does not seem to make blood sugar levels higher. Even consuming up to 400 milligrams per day appears to be safe for most people. This article will take a closer look at caffeine and some of the research that has been done in this area. Diabetes and caffeine According to the American Diabetes Association in 2012, 29.1 million Americans or 9.3 percent of the population had diabetes. About 8.1 million of the 29.1 million were undiagnosed. The World Health Organization reported that the number of people with diabetes worldwide in 2014 was 422 million. Diabetes affects how the body uses sugar (glucose). The body needs glucose because it is an important energy source for certain cells and is the brain's main source of fuel. Glucose in the body comes from food and drink as well as being made by the liver. Insulin is a naturally occurring hormone in the body and helps the body to absorb glucose. People who have diabetes have too much glucose in their blood, which can cause serious health problems. Diabetes can occur due to either the pancreas not producing no or not enough insulin or the body being unable to use insulin effectively. Type 2 is the most common type Continue reading >>
Prediabetes? The Coffee-health Connection
New research has shown—yet again—that drinking coffee can reduce your type 2 diabetes risk. The study, in nearly 1,500 Greek adults followed for a decade, found that people who downed the equivalent of 2.5 to 3 cups of brewed coffee daily had half the risk of developing type 2 diabetes. And people who drank about 1.5 cups of joe a day cut their risk by about 30%. “Apparently healthy individuals with no history of cardiovascular disease may benefit from daily consumption of this amount of coffee,” one of the study’s authors, Efi Koloverou, MmedSci, a clinical dietitian and doctoral candidate at Harokopio University in Athens, told DiabeticLifestyle in an e-mail interview. The findings were published July 1, 2015 in the European Journal of Clinical Nutrition. There were too few decaf drinkers in the new study to draw conclusions about whether caffeine-free brew would have the same benefits. But there’s strong evidence from other research that decaf has similar protective effects, according to Mary Ann Johnson, PhD, the Flatt Professor in Foods and Nutrition at the University of Georgia in Athens and a national spokesperson for the American Society for Nutrition. Researchers suspect that a substance in the coffee bean itself is what helps to lower inflammation in the body. This in turn can reduce overall risk for developing type 2 diabetes. Johnson points to a 2014 meta-analysis (a study in which the results of several smaller studies are pooled and analyzed together) which included 28 studies and 1.1 million people and found both coffee and decaf coffee drinkers had a reduced likelihood of developing type 2 diabetes. And the more a person drank, the lower their risk. Java drinkers got more good news earlier this year, when the 2015 Dietary Guidelines Advisory Continue reading >>
Caffeine And Type 1 Diabetes
Have you ever noticed a difference in your blood sugar after drinking a big cup of coffee or tea? According to the Mayo Clinic, caffeine can indeed have an affect on your blood glucose levels causing lower or higher fluctuations, so limited consumption is recommended for better control. Another study published by the ADA (2005) suggests that people with Type 1 or Type 2 diabetes can reduce their risk of hypoglycemia during the night by having a small to moderate amount of caffeine before bed. Some people also claim that symptoms of hypoglycemia become more noticeable when incorporating caffeine into their diet. The effects of caffeine on each person are varied though with the added factor of tolerance to the stimulant can build up as quantity increases. While some people claim that they see a noticeable difference in their BG levels when they drink caffeine, others say that they don’t have any issues incorporating caffeine with food. Let’s explore some variables that could contribute to the shift in BG levels in relation to caffeine consumption. Side effects Certain common side effects of caffeine consumption may often explain shifts in BG levels. Lack of sleep Not enough sleep has proven to contribute to insulin resistance in the body for people with Type 1. Too much caffeine could certainly contribute to insomnia, especially since caffeine tolerance decreases as we grow older. Elevated heart rate / “the jitters” Two common effects if too much caffeine is in the system, or if the body is not accustomed to it. These are also symptoms of hypoglycemia, which might cause someone with Type 1 to check their BG levels more frequently if mistaking the symptoms for a low. Heartburn / Upset stomach / Dehydration Some people are less tolerant to coffee and other caffeinat Continue reading >>
Can Coffee Cause Obesity And Diabetes? Not So Fast, Experts Say
THURSDAY, May 30, 2013 – Java junkies may have been alarmed to hear earlier this week that their morning brew could pack on the pounds and put them at risk for diabetes. "Study shows five cups of coffee could cause obesity," ran the headline on the British tabloid Daily Mail's web site. "Regular coffee drinkers 'at increased risk of weight gain,'" the U.K. newspaper The Telegraph announced online. But experts say those overreaching claims aren't supported by the findings of the study they were based on. After all, the research was conducted in mice, not people, and it examined one compound isolated from coffee, not the actual drink. "The data are not necessarily directly applicable to humans," said Marie-Pierre St-Onge, PhD, a researcher at the New York Obesity Research Center who was not involved with the study. Researchers at the Western Australian Institute for Medical Research began the study hoping to shed more light on the health benefits of coffee. Numerous studies have found that regular coffee drinkers are at lower risk for type 2 diabetes, and previous research suggests that compounds in coffee beans — called polyphenols — may be responsible for the beverage's health perks. "With this in mind, we studied the effects of polyphenols, or more specifically [chlorogenic acids], which are very rich in coffee but also found in some tea and fruits including plums," study author Keven Croft, PhD, said in a press release. Coffee polyphenols, including chlorogenic acid (CGA), have been found to have positive effects on blood sugar regulation, blood pressure, and body fat in animal studies. And in people, polyphenol-rich green coffee extract supplements have been shown to increase weight loss and temporarily lower blood sugar in a few small studies. But the new stud Continue reading >>
3 Upsetting Ways Coffee Impacts Your Diabetes
Do you find yourself struggling to get through the day without a few cups of steaming hot coffee? You can hardly imagine living without coffee because you’ve grown so dependent on it. But have you thought about how it could be affecting your diabetes? While it’s common belief that coffee helps in preventing diabetes, its effects are not so positive on those of us who already have the disease. Take a look at these upsetting ways in which coffee could impact your diabetes: 1. Coffee negatively impacts insulin sensitivity Another negative effective of coffee on people with diabetes is its impact on insulin sensitivity. The American Journal of Clinical Nutrition conducted a study involving healthy and obese individuals along with individuals suffering from type 2 diabetes. In the study, it was found that the insulin sensitivity for diabetic patients significantly decreased after consuming caffeine regardless of whether they had food with high or low glycemic index. Foods with high glycemic index can increase blood glucose levels but in this study, it was caffeine that was impacting the patients’ blood sugar levels. 2. Coffee increases blood glucose level When you’re living with diabetes, controlling your blood sugar is one of the most important things in your life. This is a good reason to abstain from coffee because several studies have shown that it is responsible for elevating blood glucose levels. This can make it much more difficult to maintain regular blood sugar level and manage your insulin dosage. A study published in Diabetes Journals showed that caffeine intake was responsible for impairing glucose metabolism in patients with type 2 diabetes. So there was a surge in blood glucose level for these patients. The impact was much worse when these patients cons Continue reading >>
Wait, What’s The Deal With Coffee And Diabetes?
Confused about coffee and diabetes? Not sure if your morning coffee is giving you diabetes or preventing it? I’m not surprised. Historically coffee has been deplored as an unhealthy vice. But recently there’ve been some big claims the other side of the spectrum… So should you believe the hype? Can coffee actually play a role in preventing diabetes? In the last ten or so years, there have been many studies (like this and this) looking into the relationship between coffee and diabetes. Most have found the same link: coffee drinking is associated with lower incidence of diabetes! A recent review, which was conducted in 2013, looked at 28 studies, with over one million people – and found strong support for this link. The evidence appears to be consistent across various ethnicities and showed a dose-response relationship, that is, the more coffee people drank, the lower their relative risk of developing diabetes. One study even showed those who decreased their coffee consumption increased their risk of diabetes, while those who increased consumption, decreased their risk! Even though this is a lot of people and many studies, it’s important to note, these were epidemiological studies. So it’s just observational evidence. Epidemi.. What? Epidemiological evidence means that people have conducted studies of large populations of people and found a pattern – or association – between people and a disease. The pattern seen in diabetes is that those who drink coffee seem to have less diabetes. “One Triple Shot Latte to go”? Before you go out and over-caffeinate yourself, let’s break this down. Firstly, what these studies show is just an association, not a cause. That is, not drinking coffee will not cause you to get diabetes, and drinking coffee will not prevent Continue reading >>
Coffee, Caffeine And Type 2 Diabetes
There has been extensive research into whether consuming coffee (caffeine) is safe for those with type 2 diabetes as well as whether or not coffee could help prevent diabetes. With the ever rising population of people suffering with type 2 diabetes, it’s good to hear that the diabetic or potential diabetic has a friend in coffee. A healthy diet, low in sugar and refined carbs, is still the number one dietary measure to treat or reduce the risk for diabetes. Most research shows that coffee can be part of a diet that’s designed to prevent, treat, and/or possibly reverse type 2 diabetes. Type 2 Diabetes and Coffee Research Studies A study published by the American Diabetes Association showed that those who drink coffee have lower sugar and insulin levels. It also appears that regular coffee is better than decaffeinated, so coffee could even prevent the onset of type 2 diabetes.15 overweight but otherwise healthy men were given either decaf coffee, a placebo, or the chemicals chlorogenic acid and trigonelline dissolved in water, which are two of the main antioxidants in coffee. The participants’ glucose and insulin levels were checked after consumption of each throughout the trial period. The only sample that showed lowered sugar and insulin levels was the chlorogenic acid and trigonelline solution group. Src. Another study analyzed much the latest research concerning diabetes and coffee consumption and was conducted by Harvard’s Dr. Frank Hu. His team found that the risk of type II diabetes decreased by 9% for each daily cup of coffee consumed. Decaf coffee decreased risk by 6% per cup. Src. An 11 year study looked at the diabetes and coffee risk association in postmenopausal women. They found that women who consumed 6 cups of coffee had a 22% lower risk of develop Continue reading >>
Is Coffee Good For Diabetes?
Should people with diabetes drink coffee? If you do, should it be decaf or regular? The health effects of coffee have been well studied, but we still have no definite answer. I have to admit — I don’t drink coffee and never have. The closest I get is coffee ice cream. But some of this data has me thinking I should start. • Coffee reduces risk of death. In a study of over 700,000 people done by the University of Southern California, people who drank coffee were 18% less likely to die in the next 10–16 years. The study group included people of various races and ethnic groups. • Coffee is linked with lower risk of stroke. Since stroke is a major complication of diabetes, lowering your risk seems like a good idea. • Studies indicate that coffee lowers risk ofliver and mouth cancer, improves memory, and protects against Type 2 diabetes and Parkinson’s disease. • A recent study from India found that coffee drinkers have lower fasting blood sugars. Other studies have found that coffee improves insulin function. It may lower insulin resistance. • Some nutritionists say coffee is a major source of antioxidants, molecules that slow aging and tissue breakdown. Downside of coffee Coffee has some undesirable side effects. The Mayo Clinic states that consuming more than 500–600 milligrams of caffeine a day may lead to “insomnia, nervousness, restlessness, irritability, an upset stomach, a fast heartbeat, and even muscle tremors.” It’s worth noting that 500–600 milligrams a day is a lot (about six cups of coffee or nine ounces of espresso), but some research has linked even moderate amounts of caffeine to bad health effects, according to Medical News Today. Coffee drinking in pregnancy may increase the risk of low-birth-weight babies. Drinking coffee with a Continue reading >>
How Does Caffeine Affect Your Blood Sugar?
Whether it’s from coffee, tea, soda, or chocolate, most Americans get caffeine every day. For healthy people, it’s usually a harmless perk-me-up. But if you have type 2 diabetes, caffeine may make it harder to keep your blood sugar in check. A growing body of research suggests people with type 2 diabetes react to caffeine differently. It can raise blood sugar and insulin levels for those with the disease. One study looked at people with type 2 diabetes who took a 250-milligram caffeine pill at breakfast and another at lunchtime. That’s about the same amount as drinking two cups of coffee with each meal. The result: Their blood sugar was 8% higher than on days when they didn’t have caffeine. Their reading also jumped by more after each meal. That’s because caffeine can affect how your body responds to insulin, the hormone that allows sugar to enter your cells and get changed into energy. Caffeine may lower your insulin sensitivity. That means your cells don’t react to the hormone by as much as they once did. They don’t absorb as much sugar from your blood after you eat or drink. This causes your body to make more insulin, so you have higher levels after meals. If you have type 2 diabetes, your body already doesn’t use insulin well. After meals, your blood sugar rises higher than normal. Caffeine may make it tougher to bring it down to a healthy point. This may lead to too-high blood sugar levels. Over time, this may raise your chance of diabetes complications, like nerve damage or heart disease. Scientists are still learning how caffeine affects your insulin and blood sugar levels. But they think it may work this way: Caffeine raises levels of certain stress hormones, like epinephrine (also called adrenaline). Epinephrine can prevent your cells from proce Continue reading >>
Does Coffee Raise Blood Sugar? Conclusion.
Last month, I started an experiment to better understand how different foods and lifestyle decisions impact blood sugar, using a constant-glucose-monitoring device. For the last few weeks, I’ve been testing whether or not drinking coffee raises my blood-sugar levels. The answer may seem obvious as coffee contains no sugar, but some people believe coffee can have an effect, and our first coffee experiment indicated just that. Since then, I’ve repeated the experiment twice. Here’s what I found. Planning the coffee experiment I designed the following experiment: I would drink a cup of coffee and measure my blood-sugar levels two hours prior to and after drinking it. Then I would analyze the data to see if drinking coffee seemed to raise my blood-sugar levels. To increase the reliability of the experiment, I made sure of four things: 1. I would drink the coffee black – nothing would be added to it. 2. I wouldn’t eat or drink anything else, feel stressed, nor do any form of exercise, 2 hours prior to and after drinking the coffee. 3. I would eat ketogenic. 4. I would go to bed and wake up around the same time as I normally do. It was coffee time. Drinking coffee The house was quiet, but I was up, feeling excited about doing another experiment. Everything was ready – beans, scale, grinder, and coffeemaker. The glucose sensor was safely installed in my body – constantly monitoring any change in blood-sugar levels. Using the above food scale, I put 0.63 ounces (18 grams) of coffee beans into the grinder (about the same amount as for a double espresso). I turned it on. “Grrrrooooooooooooooooouhhh”, it sounded like an elephant had been let loose in the kitchen! After 20 seconds, the noise finally stopped. I picked up the coffee-bean container, held it to my nose Continue reading >>