Myth: A high-protein, low-carbohydrate diet, such as the Atkins diet, is a healthy way to lose weight.
The fact is:
A high-protein, low-carbohydrate diet is based on the idea that carbohydrates are “bad” for you, and that people who eat them gain weight. The truth is, people are gaining weight because they eat more total calories, and they get less physical activity.
Because your food choices are strictly limited, a high-protein, low-carbohydrate diet is often low in calories. This is why the diet may cause short-term weight loss. But keep in mind that getting most of your daily calories from high-protein foods such as eggs, meat, and cheese is not a balanced eating plan.
High-protein, low-carbohydrate diets tend to be low in B vitamins, calcium, fiber, and healthy phytochemicals – plant chemicals. When you eliminate food groups, you simply decrease variety and nutrition in your diet, not weight.
As a matter of fact, a reduced-calorie eating plan that includes recommended amounts of carbohydrate, protein, and fat will allow you to lose weight. By following a balanced eating plan, you don’t have to stop eating whole classes of foods, such as whole grains, vegetables, and fruits, which allows you to get all the key nutrients these foods contain. You may also find it easier to stick with a diet or eating plan that includes a greater variety of foods.
Carbohydrates are sugars and starches that provide glucose to your body. Glucose is a major source of energy for your brain, heart, red blood cells, and central nervous system.
Potential long-term side effects of extreme high-protein, low-carbohydrate diets may:
- Make you eat too much fat and cholesterol, which may raise your risk of heart disease.
- Make you eat less fruits, vegetables, and whole grains, which can lead to constipation due to the lack of dietary fiber in your diet.
- Make you feel nauseous, tired, and weak.
- Cause bone loss.
- Damage your kidneys.
Important:
Eating fewer than 130 grams of carbohydrates a day can lead to the buildup of ketones in your blood. Ketones are partially broken-down fats. A buildup of these in your blood (called ketosis) can cause your body to produce high levels of uric acid, which is a risk factor for gout (a painful swelling of the joints) and kidney stones. Ketosis may be especially risky for people with diabetes, people with kidney disease, and pregnant women.
Be sure to discuss any changes in your diet with your doctor, especially if you have health conditions such as cardiovascular disease, type 2 diabetes, or kidney disease.