Coffee is one of the most widely consumed beverages worldwide, valued not only for its stimulating effects but also for its pharmacological, nutritional, medicinal, and industrial applications. This review explores the chemical composition of coffee, its health benefits, industrial uses, and potential risks associated with excessive consumption. Coffee contains bioactive compounds such as caffeine, polyphenols, chlorogenic acids, and diterpenes, which contribute to its antioxidant, anti-inflammatory, neuroprotective, and metabolic effects. Epidemiological studies suggest that moderate coffee consumption is linked to a reduced risk of neurodegenerative diseases (Alzheimer’s and Parkinson’s), improved cardiovascular and metabolic health, and liver protection. Additionally, coffee has industrial applications in pharmaceuticals, cosmetics, and sustainable waste management, with spent coffee grounds being repurposed for biofuels and composting. Despite its numerous benefits, excessive coffee intake can lead to caffeine dependence, sleep disturbances, gastrointestinal issues, and increased cholesterol levels in certain individuals. Unfiltered coffee, in particular, contains diterpenes that may elevate low density lipoprotein (LDL) cholesterol, posing risks for cardiovascular health. Pregnant women and individuals with hypertension or acid reflux are advised to moderate their coffee intake. Future research should focus on personalized coffee consumption guidelines, further investigating long-term health impacts and optimizing the sustainability of coffee by-products. While coffee remains a functional beverage with significant health and industrial advantages, a balanced approach to consumption is necessary to maximize benefits while minimizing risks. This review underscores the importance of moderation, individual health considerations, and sustainable practices in the coffee industry.
Peter Mudiaga Etaware (2025) studied this question.