 When in the hospital , glucose levels are checked several times daily and the patient is monitored for signs of symptomatic ketosis ( which can be treated with a small quantity of orange juice ) . Lack of energy and lethargy are common but disappear within two weeks . The parents attend classes over the first three full days , which cover nutrition , managing the diet , preparing meals , avoiding sugar and handling illness . The level of parental education and commitment required is higher than with medication . 
