Once patients are found to be eligible, oral galactose will be initiated at a dose of 0.2gm/kg/dose BID to a maximum of 15 gm BID for a period of 4 months. The prescribed dose of galactose powder will be dispensed to subjects in packets, mixed with 4 ounces of water, and consumed orally. FSPF will be measured again at week 16. All the other parameters will be repeated at 4, 10 and 16 weeks after starting oral galactose. Oral galactose therapy will be stopped after 16 weeks. In order to determine the clinical significance of the galactose treatment, a set of clinical parameters (weight, height, blood pressure, urinalysis, first morning urine protein: creatinine ratio, serum albumin, creatinine, electrolytes, and glucose) will be obtained at 12 weeks after discontinuation of oral galactose. Measurement of adherence with galactose will be estimated by counting the number of galactose doses returned at each subsequent monthly visit. Patients will be considered adherent if they have taken >90% of the prescribed doses.