According to CBS News, preliminary research being presented at the European Congress on Obesity suggests that people at risk for heart disease who follow a high-protein diet may have an increased risk for weight gain and early death. Study subjects filled out questionnaires regarding protein consumption for five years. All of them had either type 2 diabetes or had at least three of the following risk factors: smoking, high cholesterol, high blood pressure or obesity. High-protein diets are very alluring because they afford a lot of freedom and result in short-term weight loss. However, high-protein diets have also been linked to increased risk for heart disease, colon cancer and diabetes. Overall, it is clear that plant-based diets offer the best overall health benefits and weight management.