Although other variables matter much more than how many ketones you are producing, including your overall health and weight loss results, to experience all the benefits of the keto diet you must be in nutritional ketosis. 1. Follow a standard keto diet for a few weeks to get a baseline of how low I need to keep my carbs to sustain ketosis (for most people, this is below 25 grams of net carbs). Once we consume more than 50 grams of net carbs per day, it will be nearly impossible for most of us to sustain ketosis (unless you are very active). For example, this recipe uses 1/2 a cup of lemon juice which means that the entire jar of sugar free lemonade contains 8.5 grams of carbs. The key principle that separates the foods we should eat from the foods we should avoid on keto is how many carbs each food typically contains. See individual labels on foods and add the daily complete.