diff --git a/RCTAppleHealthKit/RCTAppleHealthKit+Utils.m b/RCTAppleHealthKit/RCTAppleHealthKit+Utils.m
index 9567857689398d82c9f7e147910298b7876d909b..0385e3e65482288aa11cd74ea9426f82cb3f753c 100644
--- a/RCTAppleHealthKit/RCTAppleHealthKit+Utils.m
+++ b/RCTAppleHealthKit/RCTAppleHealthKit+Utils.m
@@ -251,6 +251,9 @@
     if([unitString isEqualToString:@"mgPerdL"]){
         theUnit = [HKUnit unitFromString:@"mg/dL"];
     }
+    if([unitString isEqualToString:@"kilograms"]){
+        theUnit = [HKUnit gramUnitWithMetricPrefix:HKMetricPrefixKilo];
+    }
 
     if(theUnit == nil){
         theUnit = defaultValue;