diff --git a/litellm/integrations/opentelemetry.py b/litellm/integrations/opentelemetry.py
index e49f0fabdaa..0af016feb26 100644
--- a/litellm/integrations/opentelemetry.py
+++ b/litellm/integrations/opentelemetry.py
@@ -329,6 +329,7 @@ class OpenTelemetry(CustomLogger):
         ``self.message_logging`` flag is consulted dynamically per request).
 
         ``"true"``/``"1"`` map to ``EVENT_ONLY`` per the contrib convention.
+        ``"false"``/``"0"`` map to ``NO_CONTENT``.
         Unknown values are ignored.
         """
         explicit = self.config.capture_message_content or os.getenv(
@@ -339,6 +340,8 @@ class OpenTelemetry(CustomLogger):
         normalized = explicit.upper()
         if normalized in ("TRUE", "1"):
             return CAPTURE_MODE_EVENT_ONLY
+        if normalized in ("FALSE", "0"):
+            return CAPTURE_MODE_NO_CONTENT
         if normalized in _VALID_CAPTURE_MODES:
             return normalized
         return None
diff --git a/tests/test_litellm/integrations/test_opentelemetry.py b/tests/test_litellm/integrations/test_opentelemetry.py
index 97e57240a96..bea718dfea0 100644
--- a/tests/test_litellm/integrations/test_opentelemetry.py
+++ b/tests/test_litellm/integrations/test_opentelemetry.py
@@ -491,6 +491,12 @@ class TestOpenTelemetryCaptureMessageContent(unittest.TestCase):
         _, mode = self._make(env="true")
         self.assertEqual(mode, "EVENT_ONLY")
 
+    def test_env_var_legacy_false_maps_to_no_content(self):
+        for env in ("false", "0"):
+            with self.subTest(env=env):
+                _, mode = self._make(env=env)
+                self.assertEqual(mode, "NO_CONTENT")
+
     def test_env_var_unknown_value_falls_through_to_legacy(self):
         _, mode = self._make(env="garbage", message_logging=True)
         self.assertEqual(mode, "SPAN_AND_EVENT")