The Benefits of Coffee: Science-Backed Reasons to Enjoy Your Daily Cup

Coffee is more than just a morning ritual or a midday pick-me-up. For millions of people worldwide, it represents comfort, connection, and a moment of pause in busy lives. Beyond its rich aroma and satisfying taste, coffee has been the subject of extensive scientific research examining its effects on health, cognition, and longevity. While individual responses to coffee vary, understanding its potential benefits can help you make informed choices about your consumption habits.

Cognitive Enhancement and Mental Clarity

The most immediate benefit many people associate with coffee is improved alertness. This effect stems primarily from caffeine, a natural stimulant that blocks adenosine receptors in the brain. Adenosine is a neurotransmitter that promotes feelings of tiredness, and by inhibiting its action, caffeine helps maintain wakefulness and focus.

Research published in various neuroscience journals suggests that moderate coffee consumption may support cognitive function beyond simple alertness. Studies have observed associations between regular coffee intake and improved performance on attention tasks, reaction time, and short-term memory. Some longitudinal research has even explored potential connections between lifelong coffee consumption and reduced risk of age-related cognitive decline, though more research is needed to fully understand these relationships.

The cognitive benefits of coffee are most pronounced when consumed in moderation. Most healthy adults can safely consume 3-4 cups per day, which provides approximately 300-400 mg of caffeine. Consuming more than this amount may lead to diminishing returns and increased risk of side effects like jitteriness or disrupted sleep.

Physical Performance and Exercise Capacity

Athletes and fitness enthusiasts have long recognized coffee as an effective pre-workout beverage. Caffeine appears in many sports supplements because of its well-documented effects on physical performance. The mechanism involves multiple pathways, including enhanced fat oxidation, increased adrenaline release, and improved muscle contraction efficiency.

Research consistently shows that caffeine can improve endurance performance. A typical effective dose ranges from 3-6 mg per kilogram of body weight, consumed approximately 30-60 minutes before exercise. For a 70 kg person, this translates to roughly 1-2 cups of coffee. Studies have documented improvements in time-to-exhaustion tests, cycling performance, and running endurance when caffeine is consumed before activity.

Coffee may also benefit strength training. Some research suggests caffeine can enhance power output and resistance to fatigue during high-intensity exercise. However, responses vary considerably between individuals, and some people may experience digestive discomfort when exercising after coffee consumption.

It’s worth noting that the ergogenic benefits of caffeine may diminish with habitual use. Some athletes choose to cycle their caffeine intake or reserve it for competitions to maintain its effectiveness.

Antioxidant Content and Cellular Protection

Coffee represents a significant source of antioxidants in many dietary patterns. In fact, for some populations, coffee contributes more dietary antioxidants than fruits and vegetables combined. This doesn’t mean coffee should replace produce in your diet, but it does highlight the substantial antioxidant content of this beverage.

The primary antioxidants in coffee include chlorogenic acid, caffeic acid, and melanoidins formed during the roasting process. These compounds help neutralize free radicals, which are unstable molecules that can damage cells through oxidative stress. Oxidative stress has been implicated in aging and various chronic diseases, making antioxidant-rich foods and beverages potentially valuable components of a healthy diet.

Both caffeinated and decaffeinated coffee contain antioxidants, though the specific profile may differ slightly. Darker roasts may have different antioxidant compositions than lighter roasts, as the roasting process transforms some compounds while creating others. Regardless of roast level, coffee provides meaningful antioxidant intake as part of a balanced diet.

Metabolic Health and Blood Sugar Regulation

Epidemiological studies have observed associations between regular coffee consumption and reduced risk of type 2 diabetes. Multiple large-scale cohort studies across different populations have consistently found that people who drink more coffee tend to have lower rates of diabetes development over time.

The mechanisms behind this association remain under investigation. Coffee contains numerous bioactive compounds beyond caffeine, including chlorogenic acid, which may influence glucose metabolism and insulin sensitivity. Some research suggests that coffee consumption may improve markers of glucose tolerance, though results vary between studies.

It’s important to note that these potential benefits apply to plain coffee, not highly sweetened coffee beverages. Adding significant amounts of sugar, syrups, or cream can negate any potential metabolic advantages. Black coffee or coffee with minimal additions appears to offer the most benefit in this context.

People with existing diabetes should monitor how coffee affects their individual blood sugar responses, as caffeine can affect glucose regulation differently in different people.

Liver Health and Disease Prevention

Among the most consistent findings in coffee research is the association between coffee consumption and liver health. Multiple studies have observed that regular coffee drinkers tend to have lower levels of liver enzymes, which are markers of liver inflammation and damage. This relationship holds across diverse populations and study designs.

Research has also explored connections between coffee consumption and reduced risk of liver diseases including cirrhosis and hepatocellular carcinoma (liver cancer). A meta-analysis of multiple studies found that higher coffee consumption was associated with significantly reduced risk of developing these conditions. While observational studies cannot prove causation, the consistency of findings across research groups is notable.

The protective mechanisms are not fully understood but may involve coffee’s antioxidant and anti-inflammatory compounds. The liver metabolizes various substances, and the bioactive compounds in coffee may support hepatic function and protect against damage from other sources.

People with existing liver conditions should consult healthcare providers about appropriate coffee consumption, as individual circumstances may warrant specific recommendations.

Mood, Social Connection, and Quality of Life

The benefits of coffee extend beyond physiological effects to psychological and social domains. Many people associate coffee with improved mood, and research has explored relationships between coffee consumption and reduced risk of depression. Large cohort studies have found associations between moderate coffee intake and lower rates of depression and suicide, though the mechanisms are complex and likely involve both biological and psychosocial factors.

Coffee also plays a significant role in social connection. Coffee shops serve as gathering places, and the act of sharing coffee with friends, family, or colleagues facilitates meaningful interactions. These social connections are well-established contributors to mental health and overall wellbeing.

The ritual aspect of coffee preparation and consumption can also provide mindful moments in busy days. Taking time to grind beans, brew a careful cup, or simply pause to enjoy coffee can serve as a brief respite from stress and a moment of intentional presence.

Quality of life measures often incorporate both physical and psychological wellbeing. For many people, the pleasure and routine associated with coffee contributes positively to daily life satisfaction, which is a meaningful health outcome in its own right.

Longevity and Chronic Disease Risk

Large epidemiological studies have examined relationships between coffee consumption and all-cause mortality. Many of these studies have found that moderate coffee drinkers tend to have lower mortality rates compared to non-drinkers over extended follow-up periods. These findings have been replicated across different countries and demographic groups.

The associations appear to hold for both caffeinated and decaffeinated coffee, suggesting that compounds beyond caffeine contribute to potential longevity benefits. Coffee contains hundreds of bioactive compounds, and the synergistic effects of these components may be difficult to isolate.

Research has also explored specific diseases, with studies suggesting associations between coffee consumption and reduced risk of certain cancers, Parkinson’s disease, stroke, and cardiovascular disease. However, these are observational findings that cannot establish causation, and individual risk factors always take precedence in medical decision-making.

It’s important to interpret longevity research carefully. People who drink coffee may also differ from non-drinkers in other ways that affect health outcomes. While researchers attempt to control for confounding variables, definitive claims about coffee extending life would require more rigorous evidence.

Practical Considerations for Coffee Consumption

Understanding the potential benefits of coffee is only part of the equation. How you consume coffee matters significantly for both enjoyment and health outcomes.

Quality matters. Fresh, high-quality coffee beans typically contain more desirable compounds and taste better. Coffee loses freshness over time, so buying whole beans and grinding them before brewing preserves flavor and potentially beneficial compounds.

Brewing method affects composition. Different brewing methods extract different compounds from coffee. Filtered coffee removes cafestol, a compound that can raise LDL cholesterol, making it a better choice for people concerned about cholesterol. Unfiltered methods like French press or Turkish coffee retain this compound.

Timing affects sleep. Caffeine has a half-life of approximately 5-6 hours, meaning significant amounts remain in your system hours after consumption. Most sleep experts recommend avoiding coffee after early afternoon to prevent sleep disruption.

Individual sensitivity varies. Genetic differences affect how quickly people metabolize caffeine. Some people can drink coffee in the evening without sleep issues, while others experience anxiety, insomnia, or heart palpitations from small amounts. Pay attention to your body’s signals and adjust consumption accordingly.

Consider what you add. Black coffee contains negligible calories, but specialty coffee drinks can contain hundreds of calories from sugar and fat. If weight management is a goal, be mindful of additions. Gradually reducing sweeteners allows your palate to adapt to coffee’s natural flavor.

Different Coffee Roasts and Their Unique Properties

The degree to which coffee beans are roasted significantly influences their chemical composition, flavor profile, and potential health effects. Understanding these differences can help you select coffees aligned with your taste preferences and health goals.

Light roasts retain more of the coffee bean’s original characteristics and contain the highest concentrations of chlorogenic acid, the primary antioxidant compound studied in coffee research. Because light roasts spend less time exposed to high temperatures, they preserve more of the bean’s natural compounds. This results in a beverage with pronounced acidity, floral or fruit notes, and potentially higher antioxidant capacity per cup.

Medium roasts strike a balance between preserving beneficial compounds and developing the caramelized sugars that contribute to coffee’s familiar flavor. The moderate roasting process reduces some chlorogenic acid content while generating melanoidins, brown-colored compounds with antioxidant and anti-inflammatory properties. Many coffee drinkers find medium roasts offer the most approachable entry point for appreciating coffee’s complexity.

Dark roasts undergo the most extensive transformation, with longer exposure to high temperatures breaking down more of the original bean compounds. While this reduces chlorogenic acid content, dark roasts develop different bioactive compounds through the Maillard reaction and caramelization processes. Dark roasts also contain lower acidity, which may benefit people who experience digestive discomfort from lighter roasts. Interestingly, dark roast coffee has been associated with higher levels of N-methylpyridinium, a compound formed during roasting that may help reduce stomach acid production.

Caffeine content varies subtly with roast level, though not always in the direction people expect. When measured by volume, dark roasts contain slightly less caffeine than light roasts because the extended roasting reduces bean density. However, when measured by weight, the difference becomes negligible. For practical purposes, the caffeine variation between roast levels is minor compared to other factors like bean variety, brewing method, and serving size.

The choice between roast levels ultimately depends on personal preference, though each offers distinct characteristics. Those seeking maximum antioxidant content might gravitate toward lighter roasts, while those with sensitive stomachs might find darker roasts more comfortable to consume.

Brewing Methods and Their Impact on Health Compounds

How you brew coffee affects not just taste but also the composition of compounds that end up in your cup. Different extraction methods pull different substances from coffee grounds, creating meaningful variations in both beneficial and potentially concerning compounds.

Filtered coffee, prepared using paper filters in drip machines or pour-over devices, removes significant amounts of diterpenes called cafestol and kahweol. These compounds, naturally present in coffee oils, have been shown to raise LDL cholesterol levels in some studies. Paper filters trap these compounds while allowing beneficial antioxidants and caffeine to pass through. For people monitoring their cholesterol, filtered coffee represents the most heart-healthy brewing choice.

French press and other immersion methods that don’t use paper filters allow diterpenes to remain in the final beverage. A cup of French press coffee contains approximately 3-4 mg of cafestol, compared to negligible amounts in paper-filtered coffee. Regular consumption of unfiltered coffee has been associated with increases in LDL cholesterol of 5-10% in some studies. This doesn’t mean French press coffee should be avoided entirely, but people with elevated cholesterol might consider limiting unfiltered coffee or alternating with filtered methods.

Espresso occupies a middle ground. While it doesn’t use paper filtration, the brief extraction time limits how much cafestol ends up in the shot. A typical espresso contains less cafestol than French press coffee but more than paper-filtered coffee. However, espresso’s concentrated nature means people typically consume smaller volumes, which moderates the overall diterpene intake.

Cold brew has gained popularity for its smooth flavor and lower acidity. The extended steeping time in cold water extracts different compound profiles than hot water brewing. Cold brew typically contains less caffeine and lower concentrations of certain acids, which may make it gentler on the stomach. However, without paper filtration, cold brew retains the diterpenes present in the coffee grounds, making it more similar to French press in this regard.

Instant coffee offers convenience and a longer shelf life, though with some trade-offs. The manufacturing process involves brewing coffee concentrate and then dehydrating it, which can reduce some heat-sensitive compounds. However, instant coffee still provides meaningful antioxidant content and has been included in many of the epidemiological studies showing health benefits. Some instant coffees are also fortified with additional functional ingredients.

Single-serve pod systems typically use paper filtration within the pod, meaning they effectively remove diterpenes similar to traditional filtered coffee. The main considerations with pod systems involve freshness and environmental impact rather than health effects of the coffee itself.

Coffee Bean Origins and Processing Methods

The geographical origin of coffee beans and how they’re processed after harvesting influence flavor profiles and potentially affect the balance of bioactive compounds in your cup.

Coffee grows in a band around the equator called the Coffee Belt, spanning countries from Brazil to Ethiopia to Indonesia. Different regions produce beans with distinct characteristics shaped by soil composition, altitude, rainfall patterns, and traditional farming practices. Ethiopian coffees often display bright, wine-like acidity with floral notes. Brazilian coffees tend toward nutty, chocolate flavors with lower acidity. Indonesian coffees frequently exhibit earthy, spicy characteristics. These regional differences reflect variations in bean chemistry that extend beyond just taste.

Altitude plays a particularly significant role in bean development. Coffee grown at higher elevations matures more slowly, developing denser beans with more complex compound profiles. The cooler temperatures and greater temperature variation between day and night at high altitudes promote the development of organic acids and sugars in the coffee cherry. High-altitude coffees typically contain higher concentrations of the compounds that contribute to both flavor complexity and potential health benefits.

Processing methods—how the coffee fruit is removed from the seed after harvesting—also affect the final product. Washed processing removes the fruit completely before drying, resulting in cleaner, brighter flavors. Natural processing dries the coffee cherry intact, allowing the fruit’s sugars to ferment slightly and imparting fruity, wine-like qualities. Honey processing, a middle approach, removes some but not all of the fruit before drying. Each method influences the bean’s chemical composition through different exposure to fermentation, sunlight, and the fruit’s own compounds.

The choice between single-origin coffees and blends also has implications. Single-origin coffees allow you to experience the specific characteristics of a particular region or even a single farm. Blends combine beans from multiple sources to achieve consistent flavor profiles. Neither approach is inherently superior, but single-origin coffees offer more transparency about where your coffee comes from and how it was produced.

Organic certification indicates that coffee was grown without synthetic pesticides or fertilizers. While the roasting process destroys most pesticide residues regardless of farming method, some consumers prefer organic coffee for environmental and farm worker safety reasons. Organic farming practices also emphasize soil health, which may influence the nutrient density of crops over time.

Individual Genetic Variations in Caffeine Metabolism

Not everyone responds to coffee the same way, and much of this variation has genetic roots. Understanding your individual response to caffeine can help you optimize your coffee consumption for your unique physiology.

The CYP1A2 gene produces the primary enzyme responsible for metabolizing caffeine in the liver. Variations in this gene create two general categories of people: fast metabolizers and slow metabolizers. Fast metabolizers process caffeine efficiently, clearing it from their systems relatively quickly. They can often drink coffee later in the day without sleep disruption and may experience more of coffee’s performance-enhancing benefits. Slow metabolizers retain caffeine longer, meaning its effects persist for extended periods. They may be more sensitive to caffeine’s stimulant effects and more prone to side effects like anxiety, elevated heart rate, or insomnia.

Research has explored whether these genetic differences affect the health outcomes associated with coffee consumption. Some studies have suggested that slow metabolizers might experience different relationships between coffee intake and cardiovascular outcomes compared to fast metabolizers, though findings remain preliminary and shouldn’t drive dramatic changes in consumption patterns without consulting healthcare providers.

Beyond caffeine metabolism, genetic variations affect how individuals respond to coffee’s other compounds. Some people carry genes that make them more sensitive to coffee’s effects on stomach acid production or more prone to experiencing anxiety from stimulant consumption. Others have genetic variants that affect how their bodies process the antioxidants in coffee, potentially influencing how much benefit they derive from these compounds.

Direct-to-consumer genetic testing can provide information about caffeine metabolism genes, though the clinical utility of this information for daily decision-making remains debated. A more practical approach involves careful self-observation. Pay attention to how coffee affects your sleep, anxiety levels, digestion, and energy patterns. If you notice that coffee consumed after noon disrupts your sleep, you’re likely a slower caffeine metabolizer. If you can drink espresso after dinner and sleep soundly, you probably metabolize caffeine efficiently.

Age also influences caffeine sensitivity. As people age, they often become more sensitive to caffeine’s effects, partly due to changes in metabolism and partly due to changes in sleep architecture. Older adults may need to reduce consumption or shift their coffee drinking earlier in the day to avoid sleep disruption.

Optimal Timing and Consumption Strategies

When you drink coffee can be nearly as important as how much you drink. Strategic timing can maximize benefits while minimizing potential downsides.

Morning consumption aligns well with natural circadian rhythms. Cortisol, the body’s primary stress hormone, typically peaks shortly after waking, helping you feel alert. Drinking coffee immediately upon waking may provide less benefit because you’re already experiencing natural alertness. Waiting 60-90 minutes after waking allows cortisol to begin its natural decline, creating a more opportune window for caffeine’s alertness-promoting effects.

The half-life of caffeine—approximately 5-6 hours in most adults—has important implications for timing. If you drink a cup of coffee at 4 PM, half the caffeine remains in your system at 10 PM, and a quarter remains at 4 AM. This can significantly impact sleep quality even if you don’t notice difficulty falling asleep. Sleep experts generally recommend avoiding caffeine consumption after early afternoon, though individual tolerance varies considerably.

Pre-exercise timing offers particular benefits for athletes. Caffeine reaches peak blood concentrations 30-60 minutes after consumption, making this the ideal window before training. Consuming coffee about 45 minutes before a workout allows caffeine to reach effective levels right when you need enhanced performance. However, exercising too soon after drinking coffee can cause digestive discomfort for some people, so individual experimentation helps determine optimal timing.

Strategic use of coffee for cognitive work involves matching consumption to task demands. If you have a demanding morning meeting or need peak concentration for a project, consuming coffee 30-45 minutes beforehand can provide optimal cognitive enhancement. For creative work, some people find that moderate caffeine helps them stay focused, while others feel that caffeine’s stimulant effects can constrain the wandering thinking that sometimes facilitates creative insights.

Cycling caffeine intake—periodically reducing or eliminating consumption—can prevent tolerance development and maintain coffee’s effectiveness. Some people choose to take occasional “caffeine holidays” on weekends or during vacations, while others reduce consumption for a week every few months. This approach is particularly relevant for athletes who want to maximize caffeine’s ergogenic effects for competition.

Pairing coffee with food can moderate its effects on blood sugar and digestion. While some people enjoy coffee on an empty stomach, others experience digestive discomfort or blood sugar fluctuations. Consuming coffee with or after a meal, particularly one containing protein and fat, can slow caffeine absorption and provide a more sustained effect.

Decaffeinated Coffee as a Viable Alternative

Decaffeinated coffee offers many of the same potential benefits as regular coffee, making it a valuable option for those who want to limit caffeine while still enjoying coffee’s other attributes.

The decaffeination process removes approximately 97% of caffeine from coffee beans, leaving a product that still contains most of the original antioxidants and other beneficial compounds. Different decaffeination methods use different solvents or processes to extract caffeine. The Swiss Water Process uses only water to remove caffeine, avoiding chemical solvents entirely. Other methods use methylene chloride or ethyl acetate to extract caffeine, though these compounds don’t remain in the final product at concerning levels. The CO2 method uses pressurized carbon dioxide to remove caffeine while preserving flavor compounds.

Research on coffee’s health benefits has frequently found similar associations for both caffeinated and decaffeinated coffee. Studies examining diabetes risk, liver health, and longevity have observed that decaf drinkers also experience reduced risk compared to non-coffee drinkers, suggesting that compounds beyond caffeine drive many of coffee’s potential benefits. This makes decaf an excellent choice for people who are sensitive to caffeine, need to limit their intake for medical reasons, or simply want to enjoy coffee later in the day without sleep disruption.

Decaf coffee isn’t entirely caffeine-free. A typical cup of decaf contains 2-5 mg of caffeine, compared to 70-140 mg in regular coffee. For most people, this minimal amount is negligible, but those with severe caffeine sensitivity or specific medical restrictions should be aware that decaf still contains trace amounts.

The flavor of decaf has improved significantly over the years. Earlier decaffeination methods sometimes produced flat or muted flavors, but modern techniques preserve more of coffee’s characteristic taste. Quality decaf from specialty roasters can rival regular coffee in complexity and enjoyment. The key is sourcing decaf that has been processed carefully and roasted with attention to bringing out the best flavors.

Some people find that switching partially to decaf helps them reduce overall caffeine intake while maintaining the pleasurable ritual of coffee drinking. Blending regular and decaf coffee, ordering half-caf drinks at coffee shops, or gradually increasing the proportion of decaf over time can ease the transition for those looking to moderate their caffeine consumption.

Coffee Consumption Throughout Life Stages

Appropriate coffee consumption varies across different life stages, with particular considerations for certain populations.

Adolescents and young adults are increasingly consuming coffee, often in the form of sweetened specialty drinks or energy drinks containing caffeine. The American Academy of Pediatrics recommends that adolescents aged 12-18 limit caffeine intake to 100 mg per day or less, and children under 12 should avoid caffeine entirely. Developing brains may be more sensitive to caffeine’s effects, and early caffeine habituation could potentially affect development, though research in this area remains limited. Parents should monitor not just coffee consumption but total caffeine intake from all sources, including tea, chocolate, and energy drinks.

Pregnancy and breastfeeding require modified coffee consumption. Most health organizations recommend that pregnant women limit caffeine to 200 mg per day or less. Caffeine crosses the placenta, and the developing fetus cannot metabolize it efficiently. Some studies have suggested associations between higher caffeine intake during pregnancy and increased risk of miscarriage or low birth weight, though evidence isn’t entirely consistent. Breastfeeding women should also be aware that caffeine passes into breast milk, though in smaller amounts than cross the placenta. Nursing mothers who notice irritability or sleep disruption in their infants might benefit from reducing caffeine intake or timing consumption right after breastfeeding.

Adults in their prime working years often rely on coffee to manage demanding schedules, but this population should be particularly attentive to the potential for caffeine to mask sleep debt. Using coffee to compensate for insufficient sleep can create a cycle where caffeine consumption disrupts sleep further, leading to more fatigue and more caffeine consumption. This pattern can be broken by prioritizing adequate sleep and using coffee as a complement to, rather than replacement for, proper rest.

Older adults often need to adjust their coffee consumption as they age. Age-related changes in metabolism can make caffeine more potent, and interactions with medications become more relevant. Many common medications prescribed to older adults interact with caffeine, including certain heart medications, antibiotics, and drugs for osteoporosis. Older adults should discuss coffee consumption with their healthcare providers, particularly when starting new medications.

Frequently Asked Questions

How much coffee is safe to drink daily?

For most healthy adults, consuming up to 400 mg of caffeine per day is considered safe. This translates to approximately 3-4 cups of brewed coffee. Pregnant women, people with certain medical conditions, and those taking specific medications may need to limit intake further. Individual tolerance varies, and some people experience side effects at lower amounts. If you notice anxiety, digestive issues, sleep problems, or heart palpitations, consider reducing your consumption.

Does decaf coffee provide the same health benefits?

Decaffeinated coffee contains many of the same beneficial compounds as regular coffee, including antioxidants like chlorogenic acid. Research on diabetes risk, liver health, and mortality has found similar associations for both caffeinated and decaf coffee, suggesting that benefits extend beyond caffeine content. However, some studies show stronger associations for regular coffee in certain health outcomes. If caffeine causes you problems, decaf remains a reasonable choice that provides many potential benefits.

Can drinking coffee cause dehydration?

While caffeine has mild diuretic properties, moderate coffee consumption does not typically cause significant dehydration in habitual drinkers. Research shows that the fluid in coffee contributes to overall hydration status. Studies comparing coffee to water have found minimal differences in hydration markers when coffee is consumed in moderate amounts. However, consuming very large quantities of caffeine may have different effects, and individual responses can vary.

Is coffee safe during pregnancy?

Most health organizations recommend that pregnant women limit caffeine intake to 200 mg per day or less, which equals about 1-2 cups of coffee. Some studies have suggested associations between high caffeine intake during pregnancy and increased risk of miscarriage or low birth weight, though evidence is not entirely consistent. Because recommendations can vary and individual circumstances differ, pregnant women should discuss caffeine consumption with their healthcare providers.

Does coffee interact with medications?

Coffee can interact with several medications and supplements. Caffeine may affect the absorption or metabolism of certain drugs, including some antibiotics, antidepressants, and blood thinners. Coffee can also reduce absorption of minerals like iron and calcium when consumed simultaneously with supplements. If you take regular medications, ask your pharmacist or doctor about potential interactions with coffee. Taking medications with water rather than coffee is generally advisable unless your healthcare provider says otherwise.

The Balanced Compass

The Benefits of Coffee