Source: Healthline
Caffeine can increase your metabolic rate and help burn fat. Drinking coffee in the morning can also improve mental alertness and concentration. As coffee contains antioxidants, it can also help fight inflammation.
Coffee is acidic and can increase the production of stomach acid, which may cause gastritis. Drinking coffee on an empty stomach may increase cortisol levels, the stress hormone, which can have various negative effects on your body.
If you find that coffee on an empty stomach causes discomfort, try pairing it with a small meal or snack.
Pay attention to how your body reacts. If you experience stomach pain or other adverse effects, it might be best to avoid coffee on an empty stomach.
Drink plenty of water throughout the day to counteract dehydration, since coffee contains diuretic effects.
Please note that the information provided is for informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment.