Eating oatmeal in the morning supports weight loss and blood sugar control. Eating oatmeal at any time of day supports digestion, although eating it in the evening may result in some digestive symptoms. Oatmeal is a nutritious, versatile food that can support weight management, control blood sugar, reduce cholesterol, promote healthy digestion, and boost immunity. Best Time for Blood Sugar ControlEating oatmeal in the morning may be ideal for blood sugar control. As a result, blood sugar levels rise gradually and remain steadier throughout the day, reducing rapid blood sugar spikes and improving insulin sensitivity.