diff --git a/usda/client.py b/usda/client.py
index f0db6a0..abd5c15 100644
--- a/usda/client.py
+++ b/usda/client.py
@@ -17,7 +17,7 @@ class UsdaClient(DataGovClientBase):
             lt=UsdaNdbListType.all_nutrients.value, max=max,
             offset=offset, sort=sort)
         response_data = get_response_data(uri)
-        nutrients = self.__build_nutrients_list(response_data)
+        nutrients = self._build_nutrients_list(response_data)
         return nutrients
 
     def list_foods(self, max, offset=0, sort='n'):
@@ -25,7 +25,7 @@ class UsdaClient(DataGovClientBase):
             UsdaApis.ndb.value, UsdaUriActions.list.value,
             lt=UsdaNdbListType.food.value, max=max, offset=offset, sort=sort)
         response_data = get_response_data(uri)
-        foods = self.__build_foods_list(response_data)
+        foods = self._build_foods_list(response_data)
         return foods
 
     def get_food_report(self, ndb_food_id,
@@ -42,18 +42,18 @@ class UsdaClient(DataGovClientBase):
             UsdaApis.ndb.value, UsdaUriActions.report.value,
             type=report_type.value, ndbno=ndb_nutrient_id)
 
-    def __build_item_list(self, data, usda_class):
+    def _build_item_list(self, data, usda_class):
         result = list()
         data_list = data['list']['item']
         for raw_data in data_list:
             result.append(usda_class.from_response_data(raw_data))
         return result
 
-    def __build_nutrients_list(self, response_data):
-        return self.__build_item_list(response_data, Nutrient)
+    def _build_nutrients_list(self, response_data):
+        return self._build_item_list(response_data, Nutrient)
 
-    def __build_foods_list(self, response_data):
-        return self.__build_item_list(response_data, Food)
+    def _build_foods_list(self, response_data):
+        return self._build_item_list(response_data, Food)
 
-    def __build_food_report(self, response_data):
+    def _build_food_report(self, response_data):
         return FoodReport(response_data)
diff --git a/usda/domain.py b/usda/domain.py
index 009b65d..34517e0 100644
--- a/usda/domain.py
+++ b/usda/domain.py
@@ -79,17 +79,17 @@ class Food(UsdaObject):
 class FoodReport(UsdaObject):
 
     @staticmethod
-    def __get_measures(raw_measures):
+    def _get_measures(raw_measures):
         measures = list()
         for raw_measure in raw_measures:
             measures.append(Measure.from_response_data(raw_measure))
         return measures
 
     @staticmethod
-    def __get_nutrients(raw_nutrients):
+    def _get_nutrients(raw_nutrients):
         nutrients = list()
         for raw_nutrient in raw_nutrients:
-            measures = FoodReport.__get_measures(raw_nutrient["measures"])
+            measures = FoodReport._get_measures(raw_nutrient["measures"])
             nutrient = Nutrient(
                 id=raw_nutrient["nutrient_id"], name=raw_nutrient["name"],
                 group=raw_nutrient["group"], unit=raw_nutrient["unit"],
@@ -106,7 +106,7 @@ class FoodReport(UsdaObject):
             else food["fg"]
         return FoodReport(
             food=Food(id=food["ndbno"], name=food['name']),
-            nutrients=FoodReport.__get_nutrients(food["nutrients"]),
+            nutrients=FoodReport._get_nutrients(food["nutrients"]),
             report_type=report["type"],
             foot_notes=report["footnotes"], food_group=food_group)