Science Says No Coffee Before Breakfast?!
James Hoffmann・13 minutes read
A study from the University of Berth examined the impact of coffee and breakfast on blood glucose levels, finding a larger spike after coffee following a bad night's sleep. The narrator conducted a personal experiment, discovering that introducing protein before a carbohydrate-heavy breakfast reduced blood glucose spikes, contrary to the study's speculation on caffeine's effects.
Insights
- Having coffee after a bad night's sleep led to a higher blood glucose spike, as indicated by the study from the University of Berth.
- Introducing protein before a carbohydrate-heavy breakfast significantly reduced blood glucose spikes, showcasing the impact of meal composition on glucose levels, contrary to some speculated mechanisms involving caffeine's influence.
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Recent questions
How did the study from the University of Berth experiment with human blood?
By conducting an oral glucose tolerance test.
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Summary
00:00
Coffee, Breakfast, and Blood Glucose Levels Experiment
- Experimenting with human blood based on a study from the University of Berth about coffee and breakfast's impact on blood glucose levels.
- Study involved splitting participants into three groups for an oral glucose tolerance test after different conditions: no coffee, coffee after a bad night's sleep, and no coffee after a bad night's sleep.
- Results showed that the group having coffee after a bad night's sleep had a larger blood glucose spike during the test.
- The narrator decided to replicate the study on himself using a continuous blood glucose monitoring device.
- Conducted a four-day experiment with different breakfast and coffee combinations, avoiding the standardized oral glucose tolerance test.
- Used porridge as a carbohydrate-heavy breakfast and real coffee instead of instant coffee for the experiment.
- Results showed varying blood glucose spikes, with the order of coffee and breakfast affecting the levels.
- Introducing protein before the carbohydrate-heavy breakfast significantly reduced the blood glucose spike.
- The study speculated on caffeine's impact on blood glucose levels, suggesting mechanisms involving adenosine inhibition and cortisol synergy, but the narrator's personal results did not align with these theories.
