diff --git a/packages/smooth_app/lib/data_models/up_to_date_changes.dart b/packages/smooth_app/lib/data_models/up_to_date_changes.dart
index d46cf4df2f7..050964bdd47 100644
--- a/packages/smooth_app/lib/data_models/up_to_date_changes.dart
+++ b/packages/smooth_app/lib/data_models/up_to_date_changes.dart
@@ -80,7 +80,10 @@ class UpToDateChanges {
     if (change.noNutritionData != null) {
       initial.noNutritionData = change.noNutritionData;
     }
-    if (change.nutriments != null) {
+    // cf. https://github.com/openfoodfacts/smooth-app/issues/4627
+    // If we don't check if nutriments is empty, most of the time we overwrite
+    // potentially existing nutriments with an empty map.
+    if (change.nutriments != null && !change.nutriments!.isEmpty()) {
       initial.nutriments = change.nutriments;
     }
     if (change.servingSize != null) {
diff --git a/packages/smooth_app/lib/pages/product/ordered_nutrients_cache.dart b/packages/smooth_app/lib/pages/product/ordered_nutrients_cache.dart
index 26815d4989f..9bbdf121a0b 100644
--- a/packages/smooth_app/lib/pages/product/ordered_nutrients_cache.dart
+++ b/packages/smooth_app/lib/pages/product/ordered_nutrients_cache.dart
@@ -24,7 +24,7 @@ class OrderedNutrientsCache {
     cache._orderedNutrients = await cache._get();
     if (cache._orderedNutrients == null) {
       if (context.mounted) {
-        await LoadingDialog.run<OrderedNutrients>(
+        cache._orderedNutrients = await LoadingDialog.run<OrderedNutrients>(
           context: context,
           future: cache._download(),
         );