You laugh...
Since february I have abstained from carbo-hydrates, and eaten plenty of fat, protein, and veg.
No bread. No potatoes. No pasta. No rice. No cereals. No cake.
I have even given up beer. Mostly. (In favour of a glas of red wine...

)
And no sugar (sweets, sodas, cake again, anything like that).
Instead lots of egg, meat (any), veg, oil (vegtable), mayonnaise (with proper oil).
I have scrambled eggs with bacon for breakfast every day, with a massive dollop of mayonnaise, and tomatoes, cucumber etc.
I eat as much as I want at each meal.
It's called LCHF (Low Carbohydrate High Fat).
I have lost weight, yes. (About 5 kg.)
I can now fit the clothes I haven't been able to for many years (12, to be precise).
That took about three to four weeks.
...But that was not the point of the diet change.
The real point is that I feel a lot better wrsp to food and eating it.
I no longer feel bloated half of the day after having eaten.
Instead I do really feel better. More energy from the morning onwards.
I am full for many hours. No growling tummy from 10am until lunch.
All thanks to the high-fat level, means the body feels satiated, and will burn fat to make energy.
Not sugar. And not conversion of carbohydrates to sugar, then sugar.
(And, my, erhm, stool has never been firmer and easier to pass.)
This may not be for everyone.
Some people don't like the massive amounts of egg, and the avoidance of bread can be a bit inconvenient.
And believe you me, it is weird being in pasta/pizza-HQ (Italy), and not having any!