diff --git a/vertical-pod-autoscaler/pkg/utils/metrics/resources/resources.go b/vertical-pod-autoscaler/pkg/utils/metrics/resources/resources.go
index e14ba2649a..8c2badf5f9 100644
--- a/vertical-pod-autoscaler/pkg/utils/metrics/resources/resources.go
+++ b/vertical-pod-autoscaler/pkg/utils/metrics/resources/resources.go
@@ -30,9 +30,17 @@ const (
 type resourcesSource string
 
 const (
-	ContainerStatus      resourcesSource = "Pod.Status.ContainerStatuses"
-	InitContainerStatus  resourcesSource = "Pod.Status.InitContainerStatuses"
-	PodSpecContainer     resourcesSource = "Pod.Spec.Containers"
+	// ContainerStatus indicates that resources were fetched from the
+	// containerStatuses pod field.
+	ContainerStatus resourcesSource = "Pod.Status.ContainerStatuses"
+	// InitContainerStatus indicates that resources were fetched from the
+	// initContainerStatuses pod field.
+	InitContainerStatus resourcesSource = "Pod.Status.InitContainerStatuses"
+	// PodSpecContainer indicates that resources were fetched from the
+	// containers field in the pod spec.
+	PodSpecContainer resourcesSource = "Pod.Spec.Containers"
+	// PodSpecInitContainer indicates that resources were fetched from the
+	// initContainers field in the pod spec.
 	PodSpecInitContainer resourcesSource = "Pod.Spec.InitContainers"
 )
 
diff --git a/vertical-pod-autoscaler/pkg/utils/resources/resourcehelpers.go b/vertical-pod-autoscaler/pkg/utils/resources/resourcehelpers.go
index f4533e90b0..54c71b9faa 100644
--- a/vertical-pod-autoscaler/pkg/utils/resources/resourcehelpers.go
+++ b/vertical-pod-autoscaler/pkg/utils/resources/resourcehelpers.go
@@ -18,8 +18,9 @@ package resourcehelpers
 
 import (
 	v1 "k8s.io/api/core/v1"
-	metrics_resources "k8s.io/autoscaler/vertical-pod-autoscaler/pkg/utils/metrics/resources"
 	"k8s.io/klog/v2"
+
+	metrics_resources "k8s.io/autoscaler/vertical-pod-autoscaler/pkg/utils/metrics/resources"
 )
 
 // ContainerRequestsAndLimits returns a copy of the actual resource requests and