Maybe you start your day by rolling out of bed and shuffling straight to the kitchen for a cup of coffee . Or perhaps you practice intermittent fasting , so youre in the habit of having black coffee before you eat anything else.

But is it bad to drink your morning brew before you have something in your stomach? While many people drink coffee before breakfast with no issues whatsoever, others have reported increased gastrointestinal upset or jitteriness if they dont eat something first.

While coffee intake and the bodys response varies from person to person, some people may be especially sensitive to caffeine, perhaps more so on an empty stomach, registered dietitian Alissa Rumsey author of Unapologetic Eating told HuffPost.

Research that specifically addresses the effects of coffee on an empty stomach is limited . And a strong link between coffee consumption and digestion issues, in general, has not been established .