Dr Sudhir Kumar from Apollo Hospitals in Hyderabad said, "Cravings aren't always about taste or emotions. They can be...body’s subtle way of telling you it's missing something." "Body craves sugar due to low levels of...nutrients like B-vitamins or chromium," said Bengaluru-based nutritionist Swetha Adarsh. Salty cravings suggest low sodium, and craving carbs like rice could mean low serotonin.