Dr. Frank diet

Goal: to lose one kilo per week

Be aware: this is only the goal of this diet, not necessarily its outcome. Results vary from person to person. Consult your doctor or dietician before starting this (or any other) diet.

The Dr. Frank diet 

The Dr. Frank Diet was created by Dr. Frank van Berkum and is a low-carbohydrate and high-protein diet. By eating more proteins and less carbohydrates you should feel full faster, according to Dr. Frank, which helps you to lose weight. 

According to Dr. Frank the diet is only useful if you are overweight (with a BMI above 25). The diet is suitable for people with diabetes 2. It is advised, however, you ask your doctor or another professional for advice first if you have diabetes before starting this diet.

On the homepage you can compare this diet with other diets.

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Calculate your BMI easily with this formula:

BMI = [weight in kg] / [height in meters x length in meters].

For example: [60 kg] / [1.60m x 1.60m] = 23.4

A BMI below 25 is regarded as normal. A BMI of less than 18.5 is underweight and a BMI of 25-29 is overweight. A BMI of 30 or higher is obesity. 

Lots of protein

Protein-rich food, such as (lean) meat, fish and dairy products, should make you feel full faster, which makes it easier to eat less. In addition, it should prevent muscle loss during weight loss. 

Less carbohydrates

The Dr. Frank diet contains fewer carbohydrates. Products which contain a lot of carbohydrates are, for instance, bread, pasta and rice. Vegetables containing carbohydrates, such as legumes, corn and peas are also avoided. Instead, Dr Frank recommends dishes or snacks that do not contain carbohydrates, such as asparagus with ham or cucumber with cream cheese. Once you are at your ideal weight you can slowly add carbohydrates back into your diet.

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Be aware

Consult your doctor or dietician before starting this (or any) diet, especially if you have a high cholesterol level. You cannot follow the Dr. Frank diet for too long, as it lacks fibre and (wholemeal) cereal products.

Books on this diet

Dr. Frank wrote the book ‘Snel slank met Dr. Frank'. There is also a part 2 and a part 3 of the book.

This page has been checked, and warnings have been added by, Jolande, dietician. Read more here.

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  • Liquid Fats
  • Vegetables
  • Fruits
  • Products without carbohydrates
  • Protein-rich products

Not allowed

  • Carbohydrates (less)
  • Legumes
  • Maize
  • Saturated fats
  • Peas


  • Lose weight
  • Part time
  • Less carbohydrates
  • Less salt
  • For diabetics


As you see fit

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With the professional help of a dietitian it should be easier to reach your goals. Please contact a dietician in your area or talk to a doctor before starting any diet.

General warnings

Please take not that most diets do not have a scientific basis.

Consult your doctor or dietician before starting a diet, especially if you have a chronic condition like diabetes, cardiovascular disease, lung disease or kidney disease.

Eating disorders

If you think you might have an eating disorder (like anorexia or bulimia), it is important to look for professional help. Contact your (house) doctor or find help elsewhere. Here you can find a list of several websites that can provide (online) help. These sites also provide information for people that know someone with an eating disorder.