The potato diet is one of the diets I most recommend for weight loss.
In general, even without following a specific diet, I recommend for those who want to lose weight to eat a medium potato (200 grams) instead of a plate of rice or pasta or to alternate it with these products. The reasons are different.

POTATOES, ALLIES OF THE DIET

A medium potato weighing 200 grams provides just under 160 calories (net of the skin) but if it is boiled, it is the food with the highest satiating power, even more than protein.
For 160 calories you can eat only 45 grams of pasta or rice or about 55/60 grams of bread, and I assure you that there are very few on the plate.

So eating a medium potato allows you to satiate more and have more volume, therefore, more food, on your plate. Which is a perfect solution for those who need to keep their calories in check.
Then, while pasta or rice or bread essentially provide us only carbohydrates, but have a poor nutritional profile in micronutrients, the potato is above all rich in potassium, more than two grams of fiber and two grams of protein per 100 grams. It also has magnesium, vitamin C, folate, and choline.
So from the point of view of vitamins and minerals, it is undoubtedly healthier than pasta or rice.

Carbohydrates are the same as about 45 grams of pasta or rice. And out of 100 grams, the potato contains over 70 of water.

POTATOES AND GLYCEMIC INDEX

Okay, you say, but potatoes have a high glycemic index.
This is not quite the case.
First of all, a lot depends on how we consume them.
The potatoes should be cooked with the skin (clean) until they are really well done. Then they must be drained and allowed to cool completely, then peeled. You can decide to eat them cold at that point or re-heat them. In this case the glycemic index is reduced.
Also, it depends on how many potatoes we eat. A medium potato per meal, paired with vegetables and a protein food form a low to medium glycemic load meal. Absolutely not problematic even in the case of high blood sugar.
Finally, those who fear the glycemic index can opt for sweet potatoes.

Orange-fleshed sweet potatoes, being very rich in beta-carotene, can be problematic for some on the digestive level. White sweet potatoes are more tolerated and slightly less sugary.
I personally much prefer regular potatoes. They are slightly less caloric and more protein, and they also contain more potassium.

On page two we see a 5-day potato diet to lose 2 kg which is really effective and also, in a sense, “educational” to a more natural and less industrial diet.

Of course, you don’t just eat potatoes on this potato diet!
And we can repeat it when we want without contraindications. The diet provides around 1100 calories.
Weight loss is around one pound minimum and two pounds maximum for 5 days.