Unfortunately, no. While the keto diet is a low-carb, low-sugar, and high-fat diet, half and half doesn't exactly fit into the typical keto plan. Since the keto diet is one where you're eating more fat and less sugar, this is the reason why half and half isn't considered an approved keto item. Since half and half is half milk, which has about 12g of sugar per serving on average, and cream, the final product is lower in fat and contains sugar as opposed to the keto-friendly creamer of choice, heavy cream. Some people work around this by using only one or two tablespoons in their morning cup of coffee because they prefer the taste of half and half to cream.