International Journal For Multidisciplinary Research

E-ISSN: 2582-2160   •   Impact Factor: 9.24

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Volume 8 Issue 5
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Black Coffee During Fasting: Physiological Mechanisms of Hunger Suppression and Enhanced Fasting Adherence

Author(s) Dr Kavitha P S, Dr Ramana V Krishnan
Country India
Abstract Intermittent and prolonged fasting have become increasingly recognized as effective nutritional interventions for improving metabolic health, insulin sensitivity, body composition, and overall well-being. Despite these benefits, hunger remains one of the principal barriers limiting adherence to fasting protocols. Among individuals practicing fasting, unsweetened black coffee is one of the most frequently consumed beverages because it is widely perceived to reduce hunger while improving alertness and mental performance.
Coffee is a complex functional beverage containing more than one thousand biologically active compounds, including caffeine, chlorogenic acids, trigonelline, melanoidins, diterpenes, and polyphenols. These compounds influence neurological, endocrine, gastrointestinal, and metabolic pathways involved in appetite regulation. Current evidence suggests that black coffee may reduce the perception of hunger primarily through caffeine-mediated antagonism of adenosine receptors, increased catecholamine release, enhanced fat utilization, and modest modulation of appetite-regulating pathways. Non-caffeine compounds contribute additional metabolic benefits through improved glucose homeostasis, antioxidant activity, and gut microbial health.
To complement current scientific evidence, community-based observational surveys were conducted among individuals practicing intermittent and prolonged fasting. Most respondents reported meaningful hunger suppression while maintaining prolonged fasting schedules with only moderate black coffee consumption. This review summarizes the physiological basis through which black coffee may improve fasting adherence and integrates current scientific evidence with real-world community observations.
Keywords Black coffee, intermittent fasting, prolonged fasting, appetite suppression, caffeine, chlorogenic acids, fasting adherence, metabolism.
Field Biology
Published In Volume 8, Issue 4, July-August 2026
Published On 2026-07-19
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E-ISSN 2582-2160
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CrossRef DOI prefix of IJFMR is 10.36948/ijfmr

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