Calorie needs on keto are the same as any diet — they're determined by your TDEE and goals. Keto does not require a specific calorie amount, but most people eat at a moderate deficit (500 calories below TDEE) for weight loss. The macro composition changes, not the total calories.

Most ketogenic diets limit net carbs to 20-50 grams per day. At 5-10% of total calories, a 2,000-calorie keto diet allows 25-50g of carbs. Staying under 20g of net carbs virtually guarantees nutritional ketosis for most people.

While keto naturally reduces appetite for many people, counting calories still matters for weight loss. It is possible to overeat on keto, especially with calorie-dense foods like nuts, cheese, and oils. Tracking helps ensure you maintain the right deficit.