
The Atkins diet is a low-carbohydrate diet for weight loss and improving health. It has four phases, with the first being the strictest, where dieters consume under 20 grams of carbs per day for two weeks. Phase 2 involves slowly adding more nuts, low-carb vegetables, and small amounts of fruit. In Phase 3, dieters are very close to their goal weight and can add more carbs to their diet until weight loss slows down. This phase is about understanding how your carb tolerance is the bridge from a weight-loss diet to a diet for life.
| Characteristics | Values |
|---|---|
| Carbohydrate intake | 40-120 g per day |
| Weight goal | Within 5-10 pounds of the target weight |
| Duration | One month after reaching the desired weight |
| Purpose | Achieve Atkins Carbohydrate Equilibrium (ACE) |
| Carb increment | 10 g of net carbs per week |
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What You'll Learn

Atkins Carbohydrate Equilibrium (ACE)
During the pre-maintenance phase, individuals are very close to their goal weight, typically within 5 to 10 pounds. At this stage, they gradually increase their carbohydrate intake while monitoring their weight to ensure it remains stable. This phase empowers individuals to take their carb levels up a notch while still losing weight. Each week, dieters can increase their daily carb allotment by 5 to 10 grams of net carbs, as long as they continue to lose weight.
The pre-maintenance phase serves as a practice run for a lifetime of healthy eating and weight maintenance. It helps individuals perfect their eating habits and take ownership of their new Atkins habits. This phase continues until the individual reaches their goal weight and can maintain it for a month. The duration of this phase is flexible and depends on how long it takes for the individual to achieve and stabilise their desired weight.
The Atkins Carbohydrate Equilibrium (ACE) is achieved when an individual can maintain their goal weight while consuming a personalised level of carbohydrates. This equilibrium represents a sustainable balance between carbohydrate intake and weight management, which is the ultimate objective of the Atkins diet. It is important to note that the specific guidelines for the pre-maintenance phase and the calculation of carbohydrate intake may vary depending on the specific version of the Atkins diet being followed, such as Atkins 20 or Atkins 40.
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Carbohydrates and weight loss
In the second phase, dieters slowly reintroduce whole-food carbohydrates, including more nuts, low-carb vegetables, and small amounts of fruit. This phase continues until the individual is within 5-10 pounds of their target weight. The aim is to understand how many carbohydrates the body can process while continuing to lose weight.
Phase three, or pre-maintenance, is a practice run for a lifetime of healthy eating habits. Dieters continue to add a variety of carbohydrates to their diet, including more starchy vegetables and fruits, while carefully monitoring their weight to ensure it does not increase. This phase lasts for at least a month after reaching your desired weight, with the goal of achieving a state of balance called Atkins Carbohydrate Equilibrium (ACE). This is the individual's level of carbohydrate intake at which they neither gain nor lose weight.
The final phase is maintenance, where dieters continue to eat a predominantly low-carbohydrate diet for life. By this stage, they should understand how many carbohydrates they can consume to maintain their weight. The Atkins diet is based on the idea of changing one's metabolism so that the body burns fat for energy instead of glucose, a process called ketosis.
The Atkins diet has been criticised for omitting important nutrients such as vitamin C and potassium, and for going against dietary guidelines recommended by health organisations and medical professionals, who advise a diet with more whole grains, fruit, vegetables, and lower saturated fats. It may also not be suitable for everyone, especially those at risk of kidney disease, as it may increase the likelihood of kidney stones.
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Pre-maintenance
The third phase of the Atkins diet is called "pre-maintenance". During this phase, you'll continue to lose weight while taking ownership of your new healthy eating habits.
In pre-maintenance, you will be within 5 to 10 pounds of your goal weight. You can increase your daily carb intake by 10 grams of net carbs each week, as long as you continue to lose weight. This phase lasts for at least a month after reaching your desired weight. Your ultimate goal is to achieve a state of balance called Atkins Carbohydrate Equilibrium (ACE). This is your individual level of carbohydrate intake at which you neither gain nor lose weight.
The Atkins diet promotes weight loss through a low-carbohydrate diet. The diet has evolved since its creation in 1972 and there are now two versions: Atkins 20 (the original diet, based on an intake of 20 grams of net carbs) and the new Atkins 40, which is less strict (based on an intake of 40 grams of net carbs). The amount of carbs you eat in a day depends on the phase of the diet you're in. You begin the diet with just 20 grams of carbs daily for two weeks and slowly increase the amount as your diet progresses.
The Atkins diet can be an effective way to lose weight, but it's not for everyone. It may not always be easy to access fresh produce or high-quality meat, and relying heavily on these foods may prove quite expensive for many people. Critics say the Atkins diet omits important nutrients such as vitamin C and potassium, and it goes against dietary guidelines put out by many health organizations and medical professionals.
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Carb intake
The Atkins diet is a low-carbohydrate diet that consists of four phases. The number of carbs one can eat each day varies based on the phase.
During Phase 3, also known as Pre-Maintenance, you continue to add a variety of carbohydrates to your diet. This phase is a practice run for a lifetime of well-being, as you approach your goal weight and take ownership of the healthy eating habits of the Atkins Nutritional Approach. As you come within 5 to 10 pounds of your goal weight, you can build on your success by perfecting your eating habits for the future. The gradual weight loss during this phase puts you on the right track for a successful transition toward a life of healthy eating and weight maintenance.
During this phase, you can increase your daily allotment of net carbs by another 10 grams, as long as you continue to lose those last few pounds. The Atkins diet suggests that you can eat 50 to 80 Net Carbs daily. This phase lasts for at least a month after reaching your desired weight.
The ultimate goal of Phase 3 is to achieve the state of balance called Atkins Carbohydrate Equilibrium (ACE). This is your individual level of carbohydrate intake at which you neither gain nor lose weight.
The number of carbs you eat in a day depends on the phase of the diet you’re in. You begin the diet with just 20 grams of carbs daily for two weeks and slowly increase the amount as your diet progresses. That said, the amount of carbs you eat in a day while on the Atkins diet will depend on your carb tolerance and weight loss or weight maintenance goals.
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Atkins Nutritional Approach
The Atkins Nutritional Approach, also known as the Atkins diet, is a low-carbohydrate diet for weight loss. The diet is split into four phases: induction, balancing, fine-tuning, and maintenance.
During the first phase, induction, individuals must limit themselves to under 20 grams of carbohydrates per day for two weeks. This is to kick-start weight loss. Carbohydrates during this phase come mainly from salad and vegetables, which are low in starch. To compensate, dieters eat high-fat, high-protein foods, such as fish, meat, and eggs, alongside low-carb vegetables like leafy greens.
In the second phase, balancing, dieters slowly add more nuts, low-carb vegetables, berries, and small amounts of fruit back to their diet. This phase continues until the individual is within 5-10 pounds of their target weight.
The third phase, fine-tuning, begins when the individual is very close to their goal weight. During this phase, dieters add more carbohydrates to their diet until weight loss slows down. This phase is about understanding how your carb tolerance is the bridge from a weight-loss diet to a diet for life.
The fourth and final phase is maintenance. Here, dieters can eat as many healthy carbohydrates as their body can tolerate without regaining weight. By this phase, dieters should have a good idea of how many carbohydrates they can eat to maintain their weight.
The Atkins diet is not universally recommended. Critics say it omits important nutrients such as vitamin C and potassium. It also goes against dietary guidelines put out by many health organizations and medical professionals, including the American Heart Association and the Academy of Nutrition and Dietetics. The diet may also not be suitable for those at risk of kidney disease, as it may increase the likelihood of kidney stones.
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Frequently asked questions
Phase 3 of the Atkins diet is the pre-maintenance phase. This phase is a practice run for a lifetime of well-being, as you approach your goal weight and take ownership of the healthy eating habits of the Atkins Nutritional Approach.
During Phase 3, you can continue to add a variety of carbohydrates to your diet, including more nutrient-dense and fiber-rich foods as additional sources of carbs. These foods include nuts, seeds, low-carb vegetables, and small amounts of berries. You can also add soft cheeses in this phase.
Phase 3 lasts for at least a month after reaching your desired weight. During this time, you should continue to monitor your weight to ensure it does not go up.
The number of carbs you eat during Phase 3 will depend on your individual carb tolerance and weight loss or weight maintenance goals. You can increase your daily allotment by 10 grams of net carbs each week, as long as you continue to lose weight.
Yes, it is possible to start the Atkins diet in Phase 3. If you have less than 40 pounds to lose, you can begin with around 40 grams of net carbs per day.











































