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Classification of diets based on calorie, carbohydrate, fat daily intake and induced ketosis
| kcal/day | CHO/day | Fat/day | Ketosis | |
|---|---|---|---|---|
| High fat ketogenic diet (HFKD) | Usually unrestricted | <20–50 g | Unrestricted | Yes |
| Very low calorie ketogenic diet (VLCKD) | <800 kcal | <20–50 g | Low | Yes |
| Very low calorie diet (VLCD) | <800 kcal | >20–50 g | Low | Usually not |
| Low carbohydrate diet (LCD) | Variable | <130 g | Low | No |
