Many instances of Type 2 diabetes can be prevented through a combination of a healthy diet, regular exercise and maintaining a healthy weight, states MedicineNet. Quitting smoking reduces the risk of diabetes, and some medications have shown to prevent the onset of overt diabetes.
Type 2 diabetes is characterized by insulin resistance and high levels of blood sugar, reports MedicineNet. The risk of developing Type 2 diabetes is increased by factors such as genetics, ethnicity, birth weight and metabolic syndrome; however, risk is increased by almost twice as much in those who indulge in a diet that favors red meat, high-fat dairy, processed meats and sugary sweets.
Replacing highly processed carbohydrates with whole grains is one way to improve diet and reduce the risk of diabetes, according to the Harvard Chan School of Public Health. The bran and fiber found in many whole grains help with the digestive process and reduces spikes in blood sugar and insulin. Whole grains also provide many essential vitamins, minerals and nutrients that reduce the risk of diabetes.
Other healthy choices include eliminating unhealthy fats, such as trans fats or partially hydrogenated oils, which are typically found in margarine, fried foods and baked goods, states the Harvard Chan School of Public Health. Healthy sources of fats include polyunsaturated fats, which are found in nuts, seeds and vegetable oils. Omega 3 fats found in fish may also help prevent heart disease.