No sugar, no flour? That is the name of a diet and yes it does have some merit. But is it good? We weigh the pros and cons.
The diet is exactly how it sounds. Basically it states that no flour or sugar should be consumed. The idea behind this is there are many junk calories in flour and sugar and by removing these from the diet, less calories are consumed which equals to lower weight. Just because "sugar" is not written on the label doesn't mean the product is free from the refined 'evil.' Sugar appears under many different names such as high fructose, glucose, maltodextrin, corn syrup and many others. Most of the flour in products these days has been refined and thus contain "junk carbs."
The major advantage is that the diet does not exclude all flour or sugar. Rather it excludes refined flour. So products with whole wheat or other unrefined flours are OK. Sugar in all its processed forms is bad however. An unrefined sugar is OK.
Both refined sugar and refined flour leads to simple carbohydrates which are digested too quickly by the stomach and due to all these excess the body stores it as fat, so removing refined sugar and flour from the diet helps to curb the gain of weight.
The only shortcoming of the diet is that while it addresses two of the main causes of weight gain, it fails to address the others which are equally important and it also fails to offer a substitute.
A diet without refined sugar and flour is OK but unless a proper nutritional plan is in place, the effects will be stunted. So the diet can help and is beneficial but for maximum benefits it needs to be improved.