diff --git a/lib/optimizely/config_manager/http_project_config_manager.rb b/lib/optimizely/config_manager/http_project_config_manager.rb
index 0da73c1f..91610455 100644
--- a/lib/optimizely/config_manager/http_project_config_manager.rb
+++ b/lib/optimizely/config_manager/http_project_config_manager.rb
@@ -268,6 +268,13 @@ def polling_interval(polling_interval)
         return
       end
 
+      if polling_interval < 30
+        @logger.log(
+          Logger::WARN,
+          'Polling intervals below 30 seconds are not recommended.'
+        )
+      end
+
       @polling_interval = polling_interval
     end