diff --git a/nvm.sh b/nvm.sh
index 2a50766..8ac13ea 100644
--- a/nvm.sh
+++ b/nvm.sh
@@ -249,6 +249,7 @@ nvm() {
       echo "    nvm alias <name> <version>  Set an alias named <name> pointing to <version>"
       echo "    nvm unalias <name>          Deletes the alias named <name>"
       echo "    nvm copy-packages <version> Install global NPM packages contained in <version> to current version"
+      echo "    nvm unload                  Unload NVM from shell"
       echo
       echo "Example:"
       echo "    nvm install v0.10.24        Install a specific version number"
@@ -627,6 +628,10 @@ nvm() {
     "--version" )
         echo "0.7.0"
     ;;
+    "unload" )
+      unset -f nvm nvm_print_versions nvm_checksum nvm_ls_remote nvm_ls nvm_remote_version nvm_version nvm_rc_version > /dev/null 2>&1
+      unset RC_VERSION NVM_NODEJS_ORG_MIRROR NVM_DIR NVM_CD_FLAGS > /dev/null 2>&1
+    ;;
     * )
       nvm help
     ;;
diff --git "a/test/fast/Running \"nvm unload\" should unset all function and variables." "b/test/fast/Running \"nvm unload\" should unset all function and variables."
new file mode 100755
index 0000000..bbb4343
--- /dev/null
+++ "b/test/fast/Running \"nvm unload\" should unset all function and variables."	
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+fail () { echo $@ ; exit 1; }
+
+. ../../nvm.sh
+
+type nvm > /dev/null 2>&1 || fail "NVM not loaded"
+
+nvm unload
+
+type nvm > /dev/null 2>&1 && fail "NVM not unloaded" || exit 0
\ No newline at end of file