No food has been proven to reliably or quickly raise platelet counts in dengue. A falling platelet count is common, and the priority is hydration, monitoring, and recognizing warning signs, not platelet-boosting foods.
Seek urgent medical care now for persistent vomiting, severe abdominal pain, bleeding from gums/nose, black stool or vomiting blood, unusual sleepiness/restlessness, cold clammy hands/feet, dizziness/fainting, breathing difficulty, or reduced urine. The risk can rise as fever starts to settle. A low platelet number alone does not determine severity: hydration status, rising hematocrit, bleeding, and warning signs matter.
WHO dengue care guidance emphasizes follow-up and urgent assessment for these signs.