Supersweet foods, such as those containing refined sugar can lead to spikes in insulin levels which, in turn, can lead to fluctuations in blood sugar.
Although this might not directly affect your stomach, it could make you feel clammy and shaky, which isn't going to improve your overall state, says Robynne Chutkan, MD, assistant professor in the division of gastroenterology at Georgetown University Hospital in Washington, DC.
