Weight Loss Clinic

Weight Loss Clinic at-a-glance

  • Being overweight shortens life and worsens quality of life
  • Losing weight improves life and it is a great achievement
  • Dr Bela recommends the Ketogenic Diet from the hundreds of existing methods
  • It is scientifically proven, safe and effective
  • Ketogenic diet has numerous health benefits besides losing weight
  • Ketogenic diet is simple to start and follow with the Pronokal Method
  • Book a free consultation with Dr Bela and find out more!

Have you heard of the Ketogenic diet (PronoKal® Method) for safe and effective weight loss?

Since its launch, the PronoKal® Method has been used successfully by over 450,000 patients for weight loss. I would like to introduce you to Catarina, who lost 22 kg with the Pronokal® Method. In her words, “I know that my quality of life improved. I feel so well and energetic. More confident, prettier!” Follow in her footsteps and join the thousands of people who have lost weight with the PronoKal® Method. Win back that great feeling of health!

In the PronoKal® Method, weight loss is rapid (up to 10 kg in the first month and up to 20 kg at 4 months), helping to keep up motivation.

It is a metabolic state our body gets into after 2-3 days of a low carbohydrate diet. The lack of sugars (glucose) forces the metabolism to swap to another route of producing energy for our organs. This route is called ketosis (when our liver produces keton bodies) from the fat deposits (subcutaneous and visceral fat), which have been built up for this very purpose.

As a result of this metabolic route the body fat decreases (7-10kg per month). Both glucose and the ketone bodies provide energy supply for our organs at this stage.

There are other very interesting ‘side effects’ though.

Ketone bodies mimic a drug called GABA (Gamma-Aminobutyric Acid), which may boost mood or have a calming, relaxing effect on the nervous system. When ketosis appears there is the sensation of fullness and hunger disappears. However, we should know that the state of ketosis is very fragile. One single grape is enough to break it since that is an external source of sugar, so the body doesn’t need the ketone bodies for energy supply anymore.

Further information

If you value your health, you know how important maintaining normal body weight is. If you want to watch two amazing, sometimes shocking and very exciting videos on the causes of obesity, these are a must:

Prof. Tim Noakes – ‘Medical aspects of the low carbohydrate lifestyle’

Sugar: The Bitter Truth

9 beneficial effects of a very low-calorie ketogenic diet (VLCKD)

On a very low carb diet (less than 20g/day) the body enters into the state of ketosis, which is a completely physiological mechanism for providing energy for the organs.

Beyond weight loss resulting from such a diet, there are several other beneficial effects too.

I have briefly summarised these below.

1. Weight loss: There is no doubt that there is strong supportive evidence that the use of ketogenic diets in weight-loss therapy is effective. The weight-loss effect seems to be caused by several factors (listed in order of importance and available evidence):
– Reduction in appetite due to higher satiety effect of proteins, effects on appetite control hormones and to a possible direct appetite-suppressant action of the ketone bodies (KBs).
– Reduction in lipogenesis and increased lipolysis.
– Reduction in the resting respiratory quotient, and therefore, greater metabolic efficiency in consuming fats.

2. Cardiovascular risk and disease: Lots of evidence points to beneficial effects of ketogenic diet via significant changes in the blood lipid profiles (like cholesterol).

3. Type 2 diabetes: Insulin resistance is the primary feature underlying type 2 diabetes, which means that muscle cells have an impaired ability to take up circulating blood sugar. This leads to the conversion of carbohydrates into fat instead of burning them for energy in the muscle. With ketogenic diet, the symptoms of insulin resistance improve or often disappear completely. Other studies support the long-term efficacy of ketogenic diets in managing complications of Type 2 diabetes.

4. Epilepsy: They already knew about the beneficial effects of ketosis in the times of writing the Bible: Matthew 17:14-21 A Boy Is Healed 21 “ However, this kind [epilepsy] does not go out except by prayer and fasting.”

The ketogenic diet is now considered an established part of an integrative approach, along with drug therapy, in the major epilepsy centres worldwide. Studies suggest that the metabolic mechanisms activated by ketogenic diets may influence neurotransmitter activity in nerve cells leading to 30-40% reduction in seizures compared with controls.

5. Acne: Certain food types (high glycaemic load and milk) have a nutritional influence on the development of acne. Ketogenic diet could be effective in reducing the severity and progression of acne and improving skin quality.

6. Cancer: Evidence suggests that the insulin inhibition caused by a ketogenic diet could be a feasible adjunctive treatment for patients with cancer. It was capable to reduce tumour size in mice and may reduce tumour progression in humans. Insulin has been shown to stimulate cell division and it may also contribute by stimulating multiple cancer mechanisms, including invasion and metastasis formation. It seems a reasonable possibility that a very-low carbohydrate (ketogenic) diet could help to reduce the progression of some types of cancer, although at present the evidence is preliminary.

7. Polycystic ovary syndrome (PCOS): It is evident that any interventions that improve insulinaemia (high level of insulin in the blood due to carbohydrate consumption) and reduction of body weight may also be effective in reducing hyperandrogenism (male hormone overproduction), normalising ovulation and reducing the various symptoms of PCOS.

8. Neurological diseases: Emerging data suggests a possible therapeutic utilization of ketogenic diet in multiple neurological disorders such as epilepsy, headache, neurotrauma, Alzheimer’s and Parkinson’s disease, sleep disorders, brain cancer, autism and multiple sclerosis due to neuroprotective effects.

9. Brain trauma: Ketogenic diet may reduce the incidence of long-term consequences, such as epilepsy.

Source: Beyond weight loss: a review of the therapeutic uses of very-low-carbohydrate (ketogenic) diets European Journal of Clinical Nutrition (2013) 67, 789–796; doi:10.1038/ejcn.2013.116; published online 26 June 2013

The first step is booking a 15 min free consultation with Dr Bela to find out whether it is really the ketogenic diet and its benefits that you are looking for and, furthermore, if you are suitable for it.

After the consultation, Dr Bela is going to send you some information to read. Once you have made your decision you can book a 30 min medical consultation for the following:

  • Setting up your weight loss goals
  • Blood test (mainly for liver and kidney function and lipids)
  • Measurement (weight and body composition)
  • Filling in a prescription for the Pronokal nutritionist

Your next step is booking an appointment with a Pronokal dietitian (15 Harley Street London W1G 9QQ, Tel: 020 7183 2391). There you go through a measurements again, you can discuss your diet-related questions and buy your Pronokal sachets straight away.

At this point, you are ready to start your diet.

Dr Bela encourages his patients to book a free measurement with him every two to three weeks.

3 weeks after commencing the diet there is a follow-up blood test with Dr Bela, checking whether every parameter is in the right range.

You can turn to either Dr Bela or to the Pronokal dietitians with your diet-related questions.

Dr Bela experienced the Ketogenic diet (the PronoKal® Method) for the first time in 2015. The following is his diary about his diet. Since then he does the diet every year in January for 4-5 weeks to enjoy the health benefits.

Dr Bela’s ketogenic diet diary from 2015

The PronoKal program starts with the doctor’s visit. I have done that: completed my referral form, added my recent blood test results and recorded my body composition analysis data. So, now, I am ready for the next step: meeting with the PronoKal dietician. I am booked in on the 10th of November 2015.

10th Nov: Dietician’s visit

As a patient, I have visited Ranjana, the PronoKal dietician today in their Harley Street office for a body composition check, to plan my programme and buy my food.

We started with the analysis that revealed a normal body composition. My weight and body fat percentage is within the normal range so there is not much space for weight loss. However, this isn’t a problem. I have been thinking about fasting for a while, but not eating at all is not an option for me. Now, at last, I have found the perfect solution with 5-6 meals a day, and very low in calories. This will induce ketosis; the state which I want to experience so much, especially since I have read about its numerous beneficial effects. So, I will take my PronoKal experience as my long awaited fasting.

After analysing my results, we set up our targets. The target was: two weeks on phase one, which is the intensive stage, followed by two weeks on the remainder of the phases, which is returning to a healthy diet (so my current one). Ranjana emphasised that the initial phase, the intensive stage, is not a healthy diet. It is about ketosis, so mobilizing the ketone bodies from the fat tissue, which means losing weight at a rate of 7-10kg per month. When 80% of the target weight has been lost, the aim is returning to a healthy diet and change of lifestyle which can preserve the new weight and body composition. Both phases are important for success: losing weight and learning a new way of living to preserve the results and maintain health.

I could address all my questions too. Ie. one of them was about the E-numbers found in the products. Ranjana assured me that these E-numbers were safe and I am going to consume them only for a relatively short period of time to achieve our target. Without processed food and added E-numbers it wouldn’t be possible to reach ketosis because most of the natural foodstuff contains excess carbohydrates.

Finally, we chose my meals. I have to eat three main dishes and two snacks a day followed by the prescribed minerals. So I chose three sachets for the meals and another two for snacks. Vegetables and fresh salad (fibres) need to be added to lunch and supper. We discussed the ways of preparation and other practical points.

With PronoKal nothing is what it looks like. There are sausages, crisps, chocolate bars and drinks, which all taste relatively good. All of them are specially designed to be very low in calories and high in protein, foods that need to be consumed every 3 to 4 hours.

I left the office with one big pack equivalent to one week of food. I paid £196.

My commencement date is 16th of November. I am looking forward to it.

16th Nov: 1st day of my diet

This is the end of my first day, just after my 6th sachet. It was relatively good during the day, but the evening is not easy. I have to be strong to keep going…

The first experience was the size of the portion; only the fraction of my regular one. The taste was good though.
I think that without well-defined targets it wouldn’t be possible to restrict myself as easily. With this programme, however, I don’t need to think, I just follow what has been prescribed.

Mid-morning snack:
It was interesting that despite the very small size of my breakfast, I wasn’t as hungry as expected (due to the high protein content I think…), however, I was happy to eat my snack. I liked it.

The lunch was small but tasty. Only 100g of the group B vegetables are allowed a day.

This afternoon I performed a urine test, but no sign of ketosis yet.

Afternoon snack:

I liked it too, although it wasn’t easy to remove the last droplets from the bottle. With this diet, you start to appreciate every piece of your food.


It was a bit of a disappointment. I was alone to prepare my food and I made it too simple. I just put everything in the oven for 10 minutes. The chicken nuggets were miniscule with too much raw vegetable around it. I stuffed in everything. I will need the expertise of my wife next time.

Evening snack:
The time between dinner and my evening snack was difficult. I feel as if the glucose has disappeared from my body and my organs are suffering. This is the transitory phase towards ketosis. I felt slightly nauseous. The last bit of food was just what I needed to make me feel so much better.

(I was so hungry that I forgot to take a picture before eating it…)

Looking forward to day two.

17th Nov: Day 2

Today I have felt a slight continuous headache, drank lots of water and visited the loo regularly (signs of ketosis). I have got into the routine already regarding food preparation. I started to take the supplements as well (sodium and potassium due to the diuretic effect and the consequential loss of minerals).

The new food today has been sausage with steamed vegetables (300g of group A and 50g of group B).

I have also visited Ranjana. I measured 0.4kg less after one day on the programme (due to water loss). I am doing the phase 1 until this Sunday, and then the next week is about phase 2, when instead of two sachets normal high protein food is coming in.

Theoretically, I am going into ketosis tomorrow. I don’t know what to expect exactly; looking forward to it.

18th Nov: Day 3

For the third day, the headache had disappeared and I felt good. I was a bit hungry from time to time so I guess I was not in ketosis yet. The size of the vegetable portions still amazed me; this is a learning point straight away. My wife, who just follows my diet and helps me out with beautifully prepared dishes, has already modified her own routine in this regard. Being on the diet has its beneficial effects on the whole family by showing a good example (although, this very first stage of the program is not about healthy eating…).

I was still learning as I forgot to take some of my minerals and vitamins, but by the end of the day I picked up the right routine.

I also went swimming in the evening to test myself and see how strong I am. I swam 500m and it went very well, although I didn’t push it hard.

Last night when I finished my 6th sachet I felt terribly hungry. It lasted for an hour and then disappeared. Next morning (on my day 4) I woke very well, energetic and feeling good – not hungry at all.

My dinner: a much better version of chicken nuggets than before….

19th Nov.: Day 4

Finally, have experienced ketosis today. Unbelievable: strong, energetic and well. In spite of the very low calorie diet, I feel so good. How is it possible? Simple. The energy doesn’t come from the sugar in the food; it comes from the fat in form of ketone bodies, and this state has numerous beneficial systemic effects according to the widespread medical literature in this matter.

After 3 difficult days, the programme suddenly has become easy. I have the routine, the preparation of the food is simple and it tastes good. I am not hungry or weak anymore and I feel better than before. Logically thinking it might seem odd that starvation (calorie restriction) makes you feel stronger and better, but sometimes biology overrides logic. Nature is clever; it has given us the fat to store excess energy which becomes available in case of starvation in the form of ketone bodies.

My only question to nature here is why ketosis is so beneficial for us? Maybe this is our original state of existence? I mean protein rich and carbohydrate poor diet with periods of starvation in terms of millions of years of evolution. Only the last couple of decades have brought us the easy access to food and especially refined carbohydrates. The direction of the flow of energy is constantly from the food to fat without periods of starvation (or calorie restriction) when it can turn around. A ketogenic diet or at least periods of ketosis might be the way back to our normal evolutionary state. A kind of repair mechanism; like an MOT for a car.

20th Nov: Day 5

This day started with a big surprise. When I put on my trousers it felt weird: they were a good size bigger and loose. I had lost more than 3kg in four days. In the office I performed my body mass analysis and put the figures in a table.

By analysing it I found some odd things:
– there are differences among the devices (three different types – three different colours), which are sometimes quite significant.
– according to the data, it seems that I had lost more muscle than my overall weight loss (I lost 3.6kg but 3.8kg of muscle mass and at the same time I had more fat…). I don’t think this is the case, even visually we can detect the fat loss and as we know ketosis removes mainly fat. I have to find out more on this regard…

Regarding the diet, there is nothing new. I ate my food and capsules. What I realised is after the initial enthusiasm I started to get bored of some of the sachets (ie. paella, my initial favourite). For this reason I would recommend to start with the biggest selection and versatility of sachets and don’t eat the same ones too frequently even if you like one better than the other. Keep your diet diversified. The drinks and chocolate bar are a constant favourite.

Drinking water is paramount as we know it.

Generally, I felt well. Due to the shrinkage of my size, I decided to step into the 2a phase from tomorrow (originally we planned it two days later). So, I am going to introduce one real, low carb meal instead of my lunch – it will be salmon – yummm – with the usual A&B vegetables. I am going to do it for four days, then go to stage 2b for a further 4 days (depending on my weight loss of course…).

21-23th Nov: day 6 and 8 – Phase 2a

I lose weight at a pace of 0.4kg per day. I feel good; it isn’t a problem anymore to follow the programme.

Introducing one own meal makes a big difference. I was very happy with that real food.

So the allowance is one protein-rich food (150g lean meat or 200g fish or seafood) instead of one of the sachets either at lunch or supper.

…and chicken & eggs…

24th Nov: Day 9

I have just realised that I need to stop immediately. I have lost 5.1kg so far.

I have had my Pronokal follow up consultation today, so I discussed everything with the nutritionist. Having looked at the data from the body mass analysis I have lost 500gr of muscle mass, the rest is fat.

Now I have to move to the next phases. First of all phase 3, when I break the ketosis with my own breakfast. The rest of the day is the same as Phase 2a. I am going to step into phase 4 tomorrow, but normally phase 3 lasts for 2-3 days.

The nutritionist told me that returning from the strict phases of the diet must be gradual to let my organs adjust themselves to carbohydrates. Also, I need to be careful to fully regain my muscle mass but not the fat.

25-26th Nov: day 10-11

It seems that I could turn around my rapid weight loss. For day 11 I have gained 0.3kg.

I must look shocking for those who know me or haven’t seen me for a while because everybody asks what happened to me. It gives a great opportunity to talk about the benefits of the ketogenic diet.

My example is so contagious that Kellie, our Practice Manager has decided to go on the programme herself too.

Below are my before after pictures and interestingly they don’t show the changes as they can be seen in reality especially my clothes hanging off me.

So now my aim is to be able to do the Tae bo classes again fully as I did them previously. Today I am going to swim to test myself and try a class tomorrow gently – as much as it is possible. I feel weak now, so have to be careful.

For data lovers, I share my body composition measurements so far.

You can find recent images of Dr Bela’s ketogenic food on his Instagram account.

The following conditions are contraindications for the Ketogenic diet:

  • pregnancy or breastfeeding
  • age: younger than 16 or over 70
  • renal insufficiency
  • hepatic insufficiency
  • type 1 diabetes
  • steroid therapy

Only for those who can handle disturbing footages: this is the hard truth revealed how fat destroys the body and eventually kills.

Initial consultation with Dr Bela (15min): FREE

Medical consultation with Dr Bela (30min): £150

Initial blood test: £70

First consultation with Pronokal dietitian: £15

Pronokal food per day: app. £20

Follow up blood test: £40

Any further questions?

If you would like to find out more about the Dr Bela’s Weight Loss Clinic and the PronoKal® Method please contact Dr Bela here.

*DISCLAIMER: Individual results and their perception will vary from person to person. Specific results thus cannot be guaranteed. “The system works, people fail”, so if you follow the PronoKal® Method you will lose weight, no other option. Please read the Disclaimer and Privacy Notice at the bottom of this page.



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