diff --git a/lib/plugins/bgnow.js b/lib/plugins/bgnow.js
index b57796d10f2..35b96c024b4 100644
--- a/lib/plugins/bgnow.js
+++ b/lib/plugins/bgnow.js
@@ -166,6 +166,11 @@ function init (ctx) {
     delta.mean5MinsAgo = delta.interpolated ?
       recent.mean - delta.absolute / delta.elapsedMins * 5 : recent.mean - delta.absolute;
 
+    delta.times = {
+      recent: recent.mills
+      , previous: previous.mills
+    };
+
     delta.mgdl = Math.round(recent.mean - delta.mean5MinsAgo);
 
     delta.scaled = sbx.settings.units === 'mmol' ?
@@ -254,6 +259,31 @@ function init (ctx) {
     });
   };
 
+  function virtAsstDelta(next, slots, sbx) {
+    var delta = sbx.properties.delta;
+
+    next(
+      translate('virtAsstTitleDelta')
+      , translate(delta.interpolated ? 'virtAsstDeltaEstimated' : 'virtAsstDelta'
+      , {
+          params: [
+            delta.display == '+0' ? '0' : delta.display
+            , moment(delta.times.recent).from(moment(sbx.time))
+            , moment(delta.times.previous).from(moment(sbx.time))
+          ]
+        }
+      )
+    );
+  }
+
+  bgnow.virtAsst = {
+    intentHandlers: [{
+      intent: "MetricNow"
+      , metrics: ["delta"]
+      , intentHandler: virtAsstDelta
+    }]
+  };
+
   return bgnow;
 
 }
diff --git a/lib/plugins/virtAsstBase.js b/lib/plugins/virtAsstBase.js
index 781f56969cf..591bc5a24b9 100644
--- a/lib/plugins/virtAsstBase.js
+++ b/lib/plugins/virtAsstBase.js
@@ -58,26 +58,6 @@ function init(env, ctx) {
         callback(translate('virtAsstTitleCurrentBG'), status);
       });
     }, ['bg', 'blood glucose', 'number']);
-
-    // blood sugar delta
-    configuredPlugin.configureIntentHandler('MetricNow', function (callback, slots, sbx) {
-      if (sbx.properties.delta && sbx.properties.delta.display) {
-        entries.list({count: 2}, function(err, records) {
-          callback(
-            translate('virtAsstTitleDelta'),
-            translate('virtAsstDelta', {
-              params: [
-                sbx.properties.delta.display == '+0' ? '0' : sbx.properties.delta.display,
-                moment(records[0].date).from(moment(sbx.time)),
-                moment(records[1].date).from(moment(sbx.time))
-              ]
-            })
-          );
-        });
-      } else {
-        callback(translate('virtAsstTitleDelta'), translate('virtAsstUnknown'));
-      }
-    }, ['delta']);
   };
 
   virtAsstBase.setupVirtAsstHandlers = function (configuredPlugin) {
diff --git a/translations/en/en.json b/translations/en/en.json
index 5a54777cc9f..1d649d57455 100644
--- a/translations/en/en.json
+++ b/translations/en/en.json
@@ -612,6 +612,7 @@
     ,"virtAsstCGMBattOne":"Your CGM battery was %1 volts as of %2."
     ,"virtAsstCGMBattTwo":"Your CGM battery levels were %1 volts and %2 volts as of %3."
     ,"virtAsstDelta":"Your delta was %1 between %2 and %3."
+    ,"virtAsstDeltaEstimated": "Your estimated delta was %1 between %2 and %3."
     ,"virtAsstUnknownIntentTitle":"Unknown Intent"
     ,"virtAsstUnknownIntentText":"I'm sorry, I don't know what you're asking for."
     ,"Fat [g]":"Fat [g]"