 The low glycemic index treatment ( LGIT ) is an attempt to achieve the stable blood glucose levels seen in children on the classic ketogenic diet while using a much less restrictive regimen . The hypothesis is that stable blood glucose may be one of the mechanisms of action involved in the ketogenic diet , which occurs because the absorption of the limited carbohydrates is slowed by the high fat content . Although it is also a high @-@ fat diet ( with approximately 60 % calories from fat ) , the LGIT allows more carbohydrate than either the classic ketogenic diet or the modified Atkins diet , approximately 40 – 60 g per day . However , the types of carbohydrates consumed are restricted to those that have a glycemic index lower than 50 . Like the modified Atkins diet , the LGIT is initiated and maintained at outpatient clinics and does not require precise weighing of food or intensive dietitian support . Both are offered at most centres that run ketogenic diet programmes , and in some centres they are often the primary dietary therapy for adolescents . 
