Even zero-calorie sweeteners may have negative effects in some people, including maintaining a preference for sweet tastes and potentially increasing the risk of overeating and even food addiction.In order to set yourself up for success, here are some tips to nudge in the right direction. Some keto eaters don’t see an issue with eating them in small amounts, while others take a strict stance against them. But remember, ketosis should only be the goal if you’re going hard on the fats.