When people talk about the “Egyptian doctor’s diet”, they mean Dr Diaa Al-Awadi (ضياء العوضي), the author of Nidam al-Tayyibat. His name circulates in several transcriptions — Diaa El-Awady, Diaa al-Awady, Diaa El Awadi — and refers to the same person.
This page says what is established about him and what is not. We add nothing to his biography and remove nothing from it.
What is established
The verifiable facts are few, and that is precisely why it is worth separating them from the rest.
| Name | Diaa El-Din Al-Awadi (ضياء الدين العوضي) |
| Nationality | Egyptian |
| Born | 1979 |
| Died | 19 April 2026 |
| Known for | formulating the Nidam al-Tayyibat |
According to the system itself, it spread without institutional support: its renown comes from Arabic-speaking social media, where it was widely shared, commented on and contested. It is this spread, and not a scientific publication, that explains why people now search for it under the name “Egyptian doctor”.
What is not established, and what we will not say
A great deal of information circulates about him. We do not repeat it, and it is important to say why.
- No clinical results. The system has not been the subject of published trials. The weight-loss figures seen circulating do not come from any study we can cite, so we cite none.
- No testimonials repeated. We do not publish unverifiable success stories, and the site displays none.
- No confirmed institutional affiliation by any source we can verify.
The system does not present itself as being backed by an institution. His professional status and background have been the subject of public controversies. We make them neither an argument from authority nor an argument for disqualification: they are biographical facts, not nutritional evidence in one direction or the other.
Why the system should be read independently of its author
This is the most useful point on this page. A food system is judged by what it asks people to eat, not by who wrote it.
According to the system, the list is the system: what must be evaluated are the classifications themselves — garlic (Red) and onion (Red) excluded, legumes (Red) excluded, rice (Green) and potato (Green) at unrestricted frequency.
These choices are verifiable and debatable in themselves. It can be observed that they depart markedly from conventional nutrition recommendations on green vegetables and legumes, and that is an observation that does not depend on any biography.
What this site does with the person
We cite his name because he is the author of the system and it would be dishonest to erase it. We do not use it as a guarantee.
In concrete terms, this gives three rules that we apply throughout:
- The recipes are the team’s. None is attributed to Dr Diaa Al-Awadi — he described a framework, not a cookbook.
- The classifications are attributed to him. When we write “according to the system”, we refer to the published lists, not to our opinion.
- The discrepancies are flagged. When his sources do not agree — aubergine (Orange) is the clearest example — the entry says so instead of deciding.
What the system asks for, on one page
If you arrived here looking for “the Egyptian doctor’s diet”, here is what it actually asks for, without going through his biography.
It works as a whitelist: only the foods listed are eaten. It classifies each one into a zone that indicates a frequency — Green without restriction, Yellow with moderation, Orange under certain conditions, Purple very rarely, Red excluded.
It places five foods at the base of each day, including rice (Green), potato (Green) and dates (Green). It asks for two hours between two food intakes. And it excludes whole families that one would not expect: basic aromatics, raw green vegetables, legumes, citrus fruits.
The system asks that the frequency be respected as much as the list. This is the part that second-hand summaries most often lose, and yet it is the one that changes a day.
Why so many people search for it under this name
“Egyptian doctor”, “Egyptian doctor diet”, “حمية الطبيب المصري”: these are phrases used by people who have heard of the system without retaining its name.
This is a sign of how it spread — orally, by video, from person to person — rather than through a book or a reference site. A person hears “an Egyptian doctor says you must not eat onion”, and searches with what they have retained.
Hence the usefulness of a page like this: linking the popular phrasing to the real name, and to the system it designates. The name of the system itself poses the same spelling problem, dealt with in our page on the real name.
How to verify information read about him
Three reflexes prevent most mistakes.
- Distinguish the system from its author. A criticism of the person says nothing about the relevance of a classification, and the reverse is just as true.
- Ask for the source of the figure. Any success or weight-loss percentage must be traceable to something. When it cannot be, the system itself considers that it has demonstrated nothing.
- Check the classification in the database. The food database gives the zone and the condition of each food; this is more reliable than a second-hand summary.
Frequently asked questions
Is Dr Diaa Al-Awadi still alive?
No. He died on 19 April 2026, at the age of 46.
Has his system been scientifically validated?
No, to our knowledge no clinical trial has been published on the Nidam al-Tayyibat. That is why this site attributes no measured results to it.
Should you follow a system whose author is contested?
It is not for us to decide that for you, and the question of the person is not the same as the question of the list. What we can say: the classifications depart markedly from conventional nutrition on several food families, and this should be discussed with a health professional.
Why does the site carry his name anyway?
Because he is the author of the system that the site documents. Citing him is a matter of accuracy, not endorsement.
Where can you find what the system really says?
In the food database, entry by entry, with the zone and the condition of each one. This is the least distortable form of the information.
To go further
- What is the Tayebat diet?
- Taibat or Tayyibat: the real name of the system
- The food database — the zone and the condition of each food.
The biographical elements cited here (name, nationality, year of birth, date of death) are those that the site retains as established. The food classifications come from the site’s database, built from the system’s published lists. We do not repeat any result figures or testimonials.
Disclaimer
This article is an information page about the author of a food system; it does not give medical advice and does not replace medical advice. Nidam al-Tayyibat is not a treatment and has not undergone clinical validation. If you are pregnant, diabetic, under treatment or being monitored for a medical reason, speak to a health professional before changing your diet.