High-protein diets have been getting a lot of press lately. It's hard to deny that people who follow a high-protein/low-carb diet usually lose weight rapidly when they first start. However, most people find it difficult to keep the weight off long-term.
Also, no matter how much weight you may or may not lose on this diet, the most important thing to consider is your health. It's not healthy to consume the amount of fat that is usually advocated with this type of diet. And, eventually, your body and your palate will be screaming out for fresh fruit and vegetables. At the end of the day, it's almost impossible to get enough vitamins and minerals from this diet.
So, although some people will benefit from increasing the protein in their diet, you can take a good idea too far and go overboard to the detriment of your health and well-being.