Diets emphasizing protein, such as Atkins and South Beach, have been popular for decades and new high-protein diets come out all the time. Protein is a necessary nutrient that helps with the growth and development of muscle, nails and hair. Too much of it can cause health problems, however, so weighing the pros and cons of a high-protein diet is essential before you decide to try one.
Pro: They Cause Rapid Weight Loss
High-protein diets often cause rapid weight loss because you lose a lot of water weight. Carbohydrates retain water, so once you cut down on them, you're less likely to be bloated and you'll weigh less. When you cut down on carbs and increase protein, your body goes into ketosis, a condition that forces your body to use your stored fat as fuel, which would normally come from carbs.
Con: They're High Fat
High-protein diets are also high in saturated (animal) fat. Saturated fat increases your LDL (bad) cholesterol, especially when consumed over long periods of time. Up to 53 percent of your daily calories might come from saturated fat if you're on a high-fat diet, according to an article on the AFPA (American Fitness Professionals & Associates) website. This can lead to clogged arteries, heart disease and other health problems.
Pro: You Won't Get Hungry
One of the main benefits of a high-protein diet is that you're unlikely to ever be hungry. High-protein diets often allow a large amount of proteins, so feelings of being deprived are also unlikely. Fat is also filling, contributing to the feeling of satiety.
Con: Deficient in Nutrients
According to the Mayo Clinic, high-protein diets are usually fine as a short-term solution, but nutritional problems might arise if you continue on one for a long period of time. High-protein diets usually limit the amount of fruits and vegetables you can eat, so your intake of vitamins and nutrients diminishes significantly. Your diet will also be low in fiber, which comes primarily from veggies and whole grains. A low-fiber diet can result in constipation and an increased risk of diabetes and heart disease, according to the Harvard School of Public Health.
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