As polyols are concerned you mat some good info from the following link.
https://www.myketocal.com/blog/tag/polyols/
"So, are sugar alcohols allowed on the ketogenic diet and modified Atkins diet (MAD)? Technically, most sugar alcohols should be counted as regular carbohydrates and kept to a minimum on the ketogenic and modified Atkins diets (MAD). Although they may affect blood glucose differently in different people, most sugar alcohols have the potential of raising blood sugar. The exception to this rule is erythritol, since it is metabolized differently and does not affect blood glucose. I generally tell my ketogenic diet and modified Atkins diet (MAD) patients that when reading a food label for carbohydrate content, erythritol is the only sugar alcohol that can be deducted from total carbohydrate content. I also tell my patients that sugar alcohol can only be deducted from the total carbohydrate amount if erythritol is the only sugar alcohol used in a product. When other sugar alcohols are used in addition to erythritol, the sugar alcohol content cannot be deducted, so I tell my patients to read the food label’s ingredient list carefully."