Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7309877 | Appetite | 2014 | 10 Pages |
Abstract
Coffee is one of the most widely consumed beverages in the world and has a number of potential health benefits. Coffee may influence energy expenditure and energy intake, which in turn may affect body weight. However, the influence of coffee and its constituents - particularly caffeine - on appetite remains largely unexplored. The objective of this study was to examine the impact of coffee consumption (with and without caffeine) on appetite sensations, energy intake, gastric emptying, and plasma glucose between breakfast and lunch meals. In a double-blind, randomised crossover design. Participants (nâ=â12, 9 women; Meanâ±âSD age and BMI: 26.3â±â6.3 y and 22.7â±â2.2âkg
- mâ2) completed 4 trials: placebo (PLA), decaffeinated coffee (DECAF), caffeine (CAF), and caffeine with decaffeinated coffee (COF). Participants were given a standardised breakfast labelled with 13C-octanoic acid and 225âmL of treatment beverage and a capsule containing either caffeine or placebo. Two hours later, another 225âmL of the treatment beverage and capsule was administered. Four and a halfâhours after breakfast, participants were given access to an ad libitum meal for determination of energy intake. Between meals, participants provided exhaled breath samples for determination of gastric emptying; venous blood and appetite sensations. Energy intake was not significantly different between the trials (Meansâ±âSD, pâ>â0.05; Placebo: 2118â±â663âkJ; Decaf: 2128â±â739âkJ; Caffeine: 2287â±â649âkJ; Coffee: 2016â±â750âkJ); Other than main effects of time (pâ<0.05), no significant differences were detected for appetite sensations or plasma glucose between treatments (pâ>â0.05). Gastric emptying was not significantly different across trials (pâ>â0.05). No significant effects of decaffeinated coffee, caffeine or their combination were detected. However, the consumption of caffeine and/or coffee for regulation of energy balance over longer periods of time warrant further investigation.
- mâ2) completed 4 trials: placebo (PLA), decaffeinated coffee (DECAF), caffeine (CAF), and caffeine with decaffeinated coffee (COF). Participants were given a standardised breakfast labelled with 13C-octanoic acid and 225âmL of treatment beverage and a capsule containing either caffeine or placebo. Two hours later, another 225âmL of the treatment beverage and capsule was administered. Four and a halfâhours after breakfast, participants were given access to an ad libitum meal for determination of energy intake. Between meals, participants provided exhaled breath samples for determination of gastric emptying; venous blood and appetite sensations. Energy intake was not significantly different between the trials (Meansâ±âSD, pâ>â0.05; Placebo: 2118â±â663âkJ; Decaf: 2128â±â739âkJ; Caffeine: 2287â±â649âkJ; Coffee: 2016â±â750âkJ); Other than main effects of time (pâ<0.05), no significant differences were detected for appetite sensations or plasma glucose between treatments (pâ>â0.05). Gastric emptying was not significantly different across trials (pâ>â0.05). No significant effects of decaffeinated coffee, caffeine or their combination were detected. However, the consumption of caffeine and/or coffee for regulation of energy balance over longer periods of time warrant further investigation.
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Authors
Matthew M. Schubert, Gary Grant, Katy Horner, Neil King, Michael Leveritt, Surendran Sabapathy, Ben Desbrow,