Abstract
A 38-year-old lady, recently recovered from SARS-CoV-2 infection and taking grape seed extract, suffered multiple episodes of severe postprandial hyperinsulinemic hypoglycemia. A careful evaluation ruled out the common etiologies of hypoglycemia and identified grape seed extract consumption as a possible cause. She recovered after stopping the nutritional supplements. In her, hypoglycemia could have resulted from transient beta cell dysfunction associated with SARS-CoV-2 infection or proanthocyanidins in the grape seed extract.