Although not classified as a low-carbohydrate food, oatmeal can be part of a low-carbohydrate diet when eaten in moderation. Including oatmeal in a low-carbohydrate diet depends on the total carbohydrate grams allowed in the diet, as well as individual carbohydrate tolerance.
A one-half cup serving of dry oatmeal contains 150 calories and 27 grams of carbohydrates. Four of those grams are beneficial in the form of fiber. There are a variety of oatmeal types to choose from, with old-fashioned oatmeal and steel-cut oats converting to sugar in the body the slowest of all the forms.
It is important to eat foods containing protein and fat with the oatmeal to control blood sugar levels and promote meal satisfaction. Oatmeal is associated with lowering blood cholesterol levels, reducing the risk of type 2 diabetes, benefiting the immune system and healthy weight control.