diff --git a/app/helpers/products_helper.rb b/app/helpers/products_helper.rb
new file mode 100644
index 0000000..87d5bd7
--- /dev/null
+++ b/app/helpers/products_helper.rb
@@ -0,0 +1,13 @@
+module ProductsHelper
+  def kcal(calories)
+    calories.to_s + " kcal"
+  end
+
+  def kcal_tag(calories)
+    if calories
+      content_tag :small, kcal(calories)
+    else
+      ' '.html_safe
+    end
+  end
+end