WebMD states that patients with borderlines diabetes or prediabetes should avoid high-calories foods such as soda, junk food and desserts to help reduce high glucose levels. Prediabetes patients should eat a well-rounded diet that centers on fruits, vegetables, lean protein and whole grains.
The Best Health Magazine states that borderline diabetics should consume at least three servings of whole grains per day. A serving of whole grains can be 1/2 cup oatmeal, 1/2 cup pasta, 1/3 cup brown rice or one slice of whole wheat bread. The daily requirement can be met by including one serving at breakfast, lunch and dinner.
Three servings of whole fruit should be incorporated into the diet too. A serving might be a whole piece of fruit such as an apple, banana or orange or one cup of berries. Aim to include five servings of vegetables per day. One serving of vegetables is defined as 1/2 cup cooked or one cup raw vegetables. WebMD suggests eating non-starchy vegetables such as broccoli, cauliflower and green beans. A prediabetic can meet these requirements by making a fruit smoothie or dipping crunchy vegetables into hummus dip.
The Best Health Magazine adds that prediabetics should be selective about meat. Choose lean proteins and avoid processed lunchmeat. Limit red meat intake to two servings per week. A serving is 2.5 ounces.