Drinking coffee on an empty stomach can cause a spike in stomach acid production, leading to symptoms such as heartburn, stomach discomfort, and acid reflux. This is because the acidity in coffee can irritate the stomach lining, which is more susceptible to acid damage when empty. Additionally, drinking coffee on an empty stomach can cause a spike in blood sugar levels, which can be especially problematic for those with diabetes or blood sugar imbalances. This is because the caffeine in coffee can cause the release of glucose stored in the liver, which can lead to a rapid increase in blood sugar.
Furthermore, drinking coffee on an empty stomach can also lead to increased feelings of jitteriness or nervousness. This is because caffeine is a stimulant that can affect the nervous system, and when consumed on an empty stomach it can cause these effects to be more pronounced.
Therefore, it’s best to drink coffee with a meal or after eating a small snack to help mitigate these potential negative effects. Eating something with protein, healthy fats and fiber can help slow down the absorption of caffeine and prevent the blood sugar spike.