Caffeine in coffee has become a topic of interest for people watching their weight. Researchers from Harvard University in the United States, the University of Toronto in Canada, and the University of Navarra in Spain examined how daily habits around coffee relate to body weight. Large-scale analyses involved data from more than 280,000 individuals, gathered across three extensive surveys.
Participants completed questionnaires about changes in body weight and patterns of food and drink consumption over a span of four years. The findings showed that individuals who added an extra cup of unsweetened coffee to their daily routine tended to gain about 0.12 kilograms less than what would have been expected during the study period.
Experts note that coffee can boost metabolism and may temporarily curb appetite, but it is not a magic solution for weight loss. For meaningful results, lifestyle adjustments and consistent dietary changes play a crucial role in reducing weight over time.
Earlier work from researchers at the University of Francisco de Vitoria explored a link between caffeine intake and fat oxidation. The results of that study were published in the journal Nutrients, highlighting how caffeine could influence the body’s use of fat as an energy source during activity.
Biologists have also discussed broader environmental considerations related to coffee production. Some scientists warn that production levels around the world may face pressures from climate and agricultural factors, which could affect supply in the future.