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What Is the ABC Diet?

author image Lindsay Boyers
Lindsay Boyers has a Bachelor of Science in nutrition from Framingham State College and a certificate in holistic nutrition from the American College of Healthcare Sciences. She is also a licensed aesthetician with advanced training in skincare and makeup. She plans to continue on with her education, complete a master's degree program in nutrition and, ultimately, become a registered dietitian.
What Is the ABC Diet?
Apples are a part of the A group on the ABC diet.

The term ABC may refer to two different diets: the ABC diet developed by Robert S. Wieder or the Ana Boot Camp diet. Both of these diets rely on severe calorie restriction for weight loss and neither of them provides the nutrition that you need to stay healthy for the long-term. Talk to your doctor before beginning a new diet.

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ABC Diet

The ABC Diet created by Robert S. Wieder was developed as a comical response to all the fad diets available. The ABC Diet involves only eating certain foods that begin with the letters A, B and C. The A choices include abalone, antelope, asparagus and apples. B choices include beluga caviar, bouillon, bean curd and baguettes. The C group includes chard, celery, catsup and carrots. This diet was written solely as satire.

Ana Boot Camp Diet

The Ana Boot Camp, or ABC, Diet became popular through anorexia forums on the internet. The diet promotes weight loss through anorexia, claiming that anorexia is a lifestyle choice, not a disease. This ABC diet involves a 50-day eating schedule that lists the number of calories you are allowed to consume each day. On most days, you are allowed to eat 0 to 500 calories. One day permits you to eat 800 calories. The diet is based on the idea that fluctuating between days where you consume 100 to 200 calories and days where you consume 400 to 500 calories will keep your body out of starvation mode and enable you to lose weight.


Never follow a diet plan that promotes anorexia. Anorexia is a very serious eating disorder characterized by obsessions over food and weight. Anorexia can lead to a number of physical symptoms, including fatigue, dizziness, insomnia, constipation, dry skin, low blood pressure, irregular heartbeat and extreme weight loss. The disease can also cause various complications, such as anemia, bone loss, heart disease, kidney problems, electrolyte imbalance and gastrointestinal problems. In its severe stages, anorexia can be fatal.


While severely restricting calories may help you to lose weight initially, it triggers your basal metabolic rate, or BMR, to slow down. This affects your ability to burn calories over the long-term and can cause you to gain weight when you resume normal eating.

It is important to remember that sustainable weight loss takes time. The best way to lose weight is to follow a balanced diet that provides all of the nutrients you need while exercising regularly.

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