India, Oct. 10 -- Starting your day on the right note isn't just about coffee or breakfast choices, it's also about what not to eat. Certain foods on an empty stomach can irritate your digestive system, spike acidity, or even affect your metabolism. Dr Shubham Vatsya, gastroenterologist and hepatologist, Fortis Hospital, Vasant Kunj, Delhi, shares in his Instagram post three foods you should never have first thing in the morning and why they can do more harm than good. (Also read: AIIMS gastroenterologist shares how he lost 15 kgs, reversed fatty liver with 3 simple gut health changes )

"These three food items should never be eaten on an empty stomach, or else your gut health can be affected," Dr Vatsya warns.

"Citrus fruits like orange...