Calories in Coffee: Nutritional facts for Coffee Types

A 100g roasted coffee beans contains 287 calories, 11.7 g fat, 10.4 g protein, and 28.5 g carbohydrates. Most of these calories and macronutrients remain in the solid grounds after brewing, with only trace amounts extracted into black coffee liquid.

One roasted coffee bean (0.1-0.2 g) contains 1 calorie.

One cup (8 fl oz or 237 mL) of black coffee contains 2 calories, one cup serving of a whole milk latte (12 fl oz or 355 mL) contains 192 calories, one cup serving of a whole milk cappuccino (8 fl oz or 237 mL) contains 118 calories, and one cup (shot) of espresso (1 fl oz or 30 mL) contains 3 calories.

Coffee consumption is associated with several health benefits, as shown below:

• Rich in Antioxidants: Coffee beans contain antioxidants, like chlorogenic acids, which help protect the body's cells from damage caused by free radicals. (Grosso G, Godos J, Galvano F, Giovannucci EL., 2017. Coffee, Caffeine, and Health Outcomes: An Umbrella Review).
• May Support Liver Health: Studies suggest moderate coffee consumption is linked to a lower risk of liver conditions, including fibrosis, cirrhosis, and liver cancer. (Poole R, Kennedy OJ, Roderick P, Fallowfield JA, Hayes PC, Parkes J., 2017. Coffee consumption and health: umbrella review of meta-analyses of multiple health outcomes).
• Enhances Brain Function: Caffeine acts as a stimulant, improving alertness, concentration, reaction time, and other aspects of cognitive function in the short term. Some research also links regular consumption to a potentially lower risk of neurodegenerative diseases later in life. (Nehlig A., 2010. Is caffeine a cognitive enhancer?; Santos C, Costa J, Santos J, Vaz-Carneiro A, Lunet N., 2010. Caffeine intake and dementia: systematic review and meta-analysis).
• May Reduce Risk of Type 2 Diabetes: Epidemiological studies consistently show an association between regular coffee consumption (including decaffeinated) and a lower risk of developing type 2 diabetes. (Huxley R, Lee CM, Barzi F, et al., 2009. Coffee, decaffeinated coffee, and tea consumption in relation to incident type 2 diabetes mellitus: a systematic review with meta-analysis).
• Boosts Physical Performance: Caffeine can increase adrenaline levels and release fatty acids from fat tissues, leading to improvements in physical endurance and performance. (Goldstein ER, Ziegenfuss T, Kalman D, et al., 2010. International society of sports nutrition position stand: caffeine and performance).
• May Aid Weight Management: Caffeine may slightly boost metabolic rate and fat burning, potentially aiding weight management efforts when combined with a healthy diet and exercise. However, this effect is modest and can diminish with regular consumption, and high-calorie coffee additions negate this benefit. (Tabrizi R, Saneei P, Lankarani KB, et al., 2019. The effects of caffeine intake on weight loss: a systematic review and dose-response meta-analysis of randomized controlled trials).

Drinking coffee can have a few downsides, such as the ones listed below:

• Can Cause Anxiety and Disrupt Sleep: Caffeine is a stimulant that can trigger anxiety, nervousness, and jitteriness, especially in high doses or sensitive individuals. Consuming coffee later in the day can interfere with sleep patterns and quality.
• May Lead to Digestive Issues: Coffee can stimulate stomach acid production, causing heartburn, acid reflux, or upset stomach in some people.
• Potential for Dependency and Withdrawal: Regular caffeine consumption can lead to physical dependence, and abruptly stopping can cause withdrawal symptoms like headaches, fatigue, irritability, and difficulty concentrating.
• Can Contain High Amounts of Sugar and Fat: Popular coffee drinks prepared at cafes or home include amounts of added sugar, high-fat milk, cream, and syrups, which contributes to excess calories and negating health benefits. Choosing black coffee or limiting additions is a healthier approach. Chicory coffee or herbal teas are caffeine-free alternatives.
• May Temporarily Increase Blood Pressure: Caffeine can cause a short-term spike in blood pressure, although this effect may diminish with regular consumption. Individuals with hypertension should monitor their intake. (Urgert R, Katan MB., 1997. The cholesterol-raising factor from coffee beans - Note: While this study focuses on cholesterol, the general point about monitoring intake for health conditions applies).

Yes, coffee is good for health when consumed in moderation and prepared simply. The antioxidant properties offer cellular protection, which contributes to overall well-being, while moderate intake, 3-5 cups daily, is considered safe and possibly beneficial for heart health in many individuals. Coffee may aid digestive health by promoting regularity, but can cause acid reflux in susceptible people, and for brain health, caffeine provides well-known short-term benefits like enhanced alertness and focus, and long-term observational studies suggest potential protection against cognitive decline. Coffee consumption is also strongly linked to positive liver health outcomes, including reduced risk of serious liver diseases. The potential benefits are maximized when coffee is consumed black or with minimal additions, as the high sugar and fat content in specialty drinks can counteract positive effects.

The U.S. Food and Drug Administration (FDA) suggests that up to 400 milligrams (mg) of caffeine per day is considered safe in healthy adults, which equates to four or five 8-ounce cups of standard brewed black coffee. The Dietary Guidelines for Americans (2020-2025) align with this, indicating that three to five 8-oz cups daily or up to 400mg caffeine can fit within healthy eating patterns. The American Heart Association (AHA) also states that moderate coffee consumption is safe for most people. Pregnant women are advised to limit to 200mg of caffeine a day.

Consuming more than 500mg to 600mg of caffeine per day is strongly discouraged and can lead to more significant issues like insomnia, severe anxiety, rapid heartbeat, muscle tremors, and digestive distress. Moderate consumption up to 400mg of caffeine daily is safe for most adults, and exceeding this amount increases the risk of negative side effects. 

The calorie content of coffee depends on preparation method and added ingredients. Plain coffee options like black coffee contain 2-5 calories per 8 oz, espresso contains 3 calories per 1 oz, and Americanos have 1 calorie because they lack milk or sugar. Calories increase when milk is added, for instance, a 12 oz whole milk latte contains 192 calories, while a smaller 6 oz whole milk cappuccino has 88 calories due to using less milk. The highest calorie coffee beverages are specialty drinks like mochas or flavored lattes, especially those made with whole milk, syrups, chocolate, and whipped cream, which range from 250 to over 500 calories per serving.

Coffee originated in the ancient coffee forests of the Ethiopian plateau. A 9th-century goat herder named Kaldi who observed the berries' energizing effects on his goats. Coffee cultivation spread to Yemen on the Arabian Peninsula around the 15th century, where coffee was initially used to aid concentration during religious practices, and subsequently, coffee drinking and the establishment of coffeehouses expanded throughout the Middle East and North Africa. Coffee arrived in Europe during the 17th century, primarily through Venetian trade routes, quickly gaining popularity and leading to the rise of European coffeehouses as important social and commercial centers. European colonial powers later introduced coffee cultivation to tropical regions in the Americas and Asia, establishing coffee as a major global commodity.