Dietitions or Diet centers first of should manage to maintain patient weight over a year

There is a mistake of Dietitians in solving Diet problems.
Almost all diet centers, or dietitians believe that the problem of an obese person is not knowing too fast weight dropping low-calorie diets.
No, mostly the most important problem of an obese person is failure in maintaining weight.
Thus, an obese person should be followed over a year  by weekly weight measures at least a year. A year of follow up should not show more than +/- 4 kg change in patient weight.
Once an obese person learns to maintain monthly weight maintenance, then it is easy to drop some foods from diet list, the obese person herself, himself will be able to leave out some foods from the weekly list of weight maintaining diet list.
If the life of an obese person is not under risk, obese people rather than immediately starting to a weight loosing diet, should learn to perform a weight maintaining diet not less than a year. Only after success in weight maintenance, an obese person should start to lose weight.
Such approach is not difficult for Expert Diet centers or for most dietitians.

Let say someone is only 15 kg is overweight, if still able to walk, if not with high blood pressure, with overt Diabetes or her/his life is not under too much risk as a result of obesity for a year so, the diet might start with a year of weight maintenance exercise programs such as walking.
The worst is gaining weight, doing too-low-calorie diets screwing body essential muscles, mineral balance, vitamin, cofactor water balance levels to destruction.  To rehabilitate from badly instructed diet, the body most of the times will regain dropped weights more than ever to compensate the too-fast-stupid-too-low-calorie-high-lipid diets.
Most parrot dietitians fails to tailor protein, vegetable, fresh vitamin/fruits level with individual protein, calorie requirements.
The problem in dietitian education is not different from the parrot educational systems of many other eductional systems.
Think that a person knows in math to add numbers, multiply numbers, divide numbers, subtract number; but fail in intelligence to correctly imagine, find out the correct mathematical procedure for a problem. If you examine them if they know mathematical subtraction, multiplication they will know it, but they are brainless to select correct procedure to solve a problem.
Many current parrot systems assumes that if a person knows subtraction, then will subtract if  problem asks. The reality is that people brains are not same, parrot-like people  fail to use the memorized thing to solve problems, they do not know when to use addition, when to use subtraction to go to solution. This is called differences in brain performances and depend on brain fınction. Ten years go or so, some exams such as GRE would examine this ability. I do not know if GRE exam it is also changed by jealous brainless parrot people ince proved their brains stupidity.
An old anecdote in this country would say 'the punctiotion marks never themselves goe into correct order for any text'. That one text has dot, comma, dot comma
will differ dot dot dot in a different text. That a person memorizes all puntiotion marks is something, but only that knowledge is not more than an animal knowledge. If an educational system assume that just listing dot comma etc... is a proof of their correct usage alo, this only proves how stupidly they screw educational systems.
With the giant computer/internet search engine tehnologies correct usage, already in many hands such parrot-like educational system harms to humanity understood.
 I agree that parrot exams are easier to prepare than the exams I suggest. But, parrots are once more looser by the creation of giant computer/internet technologies in science in medicine.