And the WHO is not the only organization to include coffee in its list of foods that are probably harmless and possibly healthy. The 2015 Dietary Guidelines Advisory Committee (commissioned by the secretaries of the US Department of Health and Human Services and the US Department of Agriculture) thoroughly reviewed the evidence and declared that “moderate coffee consumption (three to five cups per day) can be incorporated into a healthy dietary pattern…” And the World Cancer Research Fund International concluded that coffee consumption was linked with a lower risk of several types of cancer.
Do you drink your coffee first thing in the morning? You may want to think again.”Caffeine causes sugar to release into the bloodstream, creating a spike in insulin and a resulting drop in blood sugar,” says health coach and nutritionist Kristie Santana. “This will cause your body to require even more sugar, which will lead to food cravings.” Additionally, studies have found that drinking coffee first thing in the morning interferes with our bodies’ production of cortisol, which can increase your tolerance to caffeine and make you more reliant on the drink.
We’ve been conditioned to believe that caffeine is dehydrating, one of the primary reasons why fitness experts recommend nixing coffee pre- and post-workout. However, recent research suggests that moderate caffeine consumption — up to about 500 mg, or about five cups per day — doesn’t dehydrate exercisers enough to interfere with their workout. In addition, coffee helps battle fatigue, enabling you to exercise longer.
A 2016 study in the American Journal of Clinical Nutrition found drinking coffee might be able to help you lose weight thanks to caffeine’s ability to increase thermogenesis, fat oxidation, and lipolysis. But more research still needs to be done, so don’t count as your Starbuck runs as a way to drop the pounds. Especially if you’re drinking something that’s not simple, black coffee.
After the researchers induced myocardial infarction in the mice during their experiments, the extra stores of p27 in the caffeinated cells apparently prevented damaged heart muscle cells from dying. The paper says the mitochondrial p27 also triggered the creation of cells armed with strong fibers to withstand mechanical forces, and promoted repairs to the linings of blood vessels and the inner chambers of the heart. To confirm the protein’s importance, the scientists engineered mice with a p27 deficiency. Those mice were found to have impaired mitochondrial function that did not improve with caffeine.
Listen up, boys: According to a 2011 study led by Harvard School of Public Health researchers and published in the Journal of the National Cancer Institute, regularly drinking coffee could lower your risk of developing prostate cancer because of its compounds do everything from reducing inflammation to regulating insulin. And get this: decaffeinated counts, too! And to learn more about prostate cancer, here one man reveals what it’s like to have. 
It’s not water, so if you’re going overboard, it’s going to mess with your digestion and potentially your sleep, which could have major consequences. Research shows drinking up to four eight-ounce cups per day is okay—that likely equals two cups, depending on the size you’re ordering. And it can stay in your system for a very long time, so if you’re having issues getting to sleep, stick to drinking coffee in the AM.
Brushing isn’t the only way to prevent cavities. While coffee is known to stain the teeth, it’s also been found to protect them: A 2009 study published in the Journal of Conservative Dentistry found drinking coffee can help prevent cavities and tooth decay, but there’s a catch—you have to drink it black. Because unfortunately adding in sugar isn’t going to do your smile any good.
After the researchers induced myocardial infarction in the mice during their experiments, the extra stores of p27 in the caffeinated cells apparently prevented damaged heart muscle cells from dying. The paper says the mitochondrial p27 also triggered the creation of cells armed with strong fibers to withstand mechanical forces, and promoted repairs to the linings of blood vessels and the inner chambers of the heart. To confirm the protein’s importance, the scientists engineered mice with a p27 deficiency. Those mice were found to have impaired mitochondrial function that did not improve with caffeine.

It’s not water, so if you’re going overboard, it’s going to mess with your digestion and potentially your sleep, which could have major consequences. Research shows drinking up to four eight-ounce cups per day is okay—that likely equals two cups, depending on the size you’re ordering. And it can stay in your system for a very long time, so if you’re having issues getting to sleep, stick to drinking coffee in the AM.
If you’re working 80 hours a week, getting three hours of sleep a night, and have no energy because you’re living on carb-heavy takeout, drinking coffee non-stop during the day is a problem. It’s not the coffee; it’s the fact that you’re using the coffee as a crutch. Craving a steaming hot cup or two is fine, being totally dependent on coffee to function isn’t.
Statistically, women who take four or more cups of coffee on a regular daily basis have a 25% reduced chance of falling scourge to this cancer compared to the women who drink less than one cup daily. On the same spectrum, researchers have found a relationship between frequent coffee drinking and lower rates of breast, colon, rectal, and liver cancers.

Love hot chocolate? Most of us have delightful memories of consuming this sugary delight in the cold months of winter. But worry not, because you can add some organic, unsweetened cocoa to your coffee, and bring back those warm memories! Cocoa has numerous health benefits, including a lower risk of heart disease and a lower risk of cancer. Remember, don’t go overboard here. A small teaspoon is more than enough!


There’s no need to try anything crazy; the only performance enhancer you really need is coffee. Research has shown its ability to give workouts a boost and increase athletic performance, and that’s exactly why you’ll find so many Olympians drinking it: One report from the journal Applied Physiology, Nutrition, and Metabolism found the majority of the 20,686 Olympic athletes analyzed had caffeine in their urine.
Parkinson's is a disease of the central nervous system characterized by tremors (and you've probably heard that Michael J. Fox has it). Scientists are still figuring out what combination of environmental and genetic factors causes some people to develop this disease, but some preliminary research suggests caffeine may have a protective benefit against it. In a 2017 literature review published in the Archives of Medical Science, researchers concluded that people who drink moderate amounts of coffee seem to have lower rates of Parkinson's, but they couldn't pinpoint why.
Want to lower your risk of death? A National Institutes of Health – AARP Diet and Health study of more than 400,000 people revealed that drinking coffee might be the answer. Between 1995 and 2008, male participants drinking even just one daily cup reduced their risk of death by 6%. Drinking either 2-3 cups or 6+ cups reduced the risk by 10% during the timeframe of the study. The greatest reduction of death risk was 12% in the group drinking 4-5 cups.
If you can’t go completely black with your coffee, try adding a small amount of stevia. While not 100% perfect, this choice is certainly better than consuming the artificial sweeteners and refined sugar which are usually found in most cups. Coconut sugar or organic maple syrup can also be used, but the real key here is adding a very small amount. Don’t go overboard!
Some curious minds wanted to know exactly who was protected. And why? How? These studies showed that in people with Type 2 diabetes coffee intake was correlated with insulin spikes and increased blood sugar after a meal. Further research has shown that the caffeine in coffee might be the culprit responsible for the secretion of higher levels of insulin from the pancreas.
Alternatively, opt for “milks” and creamers made from almond, coconut, cashew, and other plant sources. They can be much lower in calories than traditional creamers; and they're often produced with all-natural ingredients (read: no high-fructose corn syrup) and provide heart-healthy monounsaturated fat. If you prefer a flavored or sweetened version, check the grams of sugar on the Nutrition Facts panel. Four grams of sugar is equal to one teaspoon.
While many of us start the day with a big cup of coffee, you actually may be lowering your energy levels by doing this. How is this possible? Well, quite simply, your body releases insulin in response to the caffeine found within coffee. This, in turn, causes a major drop in blood sugar, which leaves you feeling depleted and tired. Not a great way to start your day. Munch on a small snack during your morning cup, or even eat right before you drink. Your body will thank you for it.

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In addition to being pretty terrible for the environment, Immer says Keurig Coffee Makers also pose some potential health dangers. Not only do you expose yourself to plastic that’s been heated, but Keurigs tend to get dirty, fast. “The water tanks in a Keurig can never truly be flushed and cleaned. We are concerned about mold and bacteria growth in these tanks over time, much like commercial ice machines,” Immer says.
Katie Wells, CTNC, MCHC, Founder and CEO of Wellness Mama, has a background in research, journalism, and nutrition. As a mom of six, she turned to research and took health into her own hands to find answers to her health problems. WellnessMama.com is the culmination of her thousands of hours of research and all posts are medically reviewed and verified by the Wellness Mama research team. Katie is also the author of the bestselling books The Wellness Mama Cookbook and The Wellness Mama 5-Step Lifestyle Detox.
When the morning rush gets between us and breakfast, we become our worst selves (hangry, stuck in rush-hour traffic, staring at a giant billboard of a breakfast sandwich). But here’s a way to grab breakfast and coffee on your way out the door: Brew some caffeine-packed oats in your thermos for a delicious morning meal. Not only are you getting your energizing fix, but you're also eating a solid breakfast because oatmeal comes packed with fiber and minerals like magnesium, zinc, manganese, selenium, and iron.
It’s enough to make a tea drinker buy an espresso machine. In a new study scientists in Germany report they were able to modify a common age-related defect in the hearts of mice with doses of caffeine equivalent to four to five cups of coffee a day for a human. The paper—the latest addition to a growing body of research that supports the health benefits of drinking coffee—describes how the molecular action of caffeine appears to enhance the function of heart cells and protect them from damage.
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