diff --git a/app/controllers/meals_controller.rb b/app/controllers/meals_controller.rb
index 9808113..105a9f5 100644
--- a/app/controllers/meals_controller.rb
+++ b/app/controllers/meals_controller.rb
@@ -6,6 +6,7 @@ class MealsController < ApplicationController
   include Concerns::Finders
 
   before_action :find_project_by_project_id, only: [:index, :new, :create]
+  before_action :find_quantity_by_quantity_id, only: [:toggle_exposure]
   before_action :find_meal, only: [:edit, :update, :destroy, :edit_notes, :update_notes,
                                    :toggle_eaten]
   before_action :authorize
@@ -59,6 +60,11 @@ class MealsController < ApplicationController
     prepare_meals
   end
 
+  def toggle_exposure
+    @project.meal_exposures.toggle!(@quantity)
+    prepare_meals
+  end
+
   private
 
   def meal_params
diff --git a/app/views/meals/_options.html.erb b/app/views/meals/_options.html.erb
index c35b7af..1753cc2 100644
--- a/app/views/meals/_options.html.erb
+++ b/app/views/meals/_options.html.erb
@@ -8,7 +8,8 @@
       <table>
         <tr>
           <td style="width:100%"></td>
-          <td><%= select_tag 'quantity_id', toggle_column_options %></td>
+          <td><%= select_tag 'quantity_id',
+            toggle_exposure_options(@project.meal_exposures, :diet) %></td>
           <td><%= submit_tag l(:button_add) %></td>
         </tr>
       </table>
diff --git a/config/routes.rb b/config/routes.rb
index 6642f2e..b329c25 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -16,6 +16,9 @@ resources :projects, shallow: true do
       patch 'update_notes'
       post 'toggle_eaten'
     end
+    collection do
+      post 'toggle_exposure'
+    end
   end
   resources :measurement_routines, only: [:show, :edit] do
     member do
diff --git a/init.rb b/init.rb
index 62f24ce..9837c06 100644
--- a/init.rb
+++ b/init.rb
@@ -25,7 +25,7 @@ Redmine::Plugin.register :body_tracking do
       body_trackers: [:defaults],
       ingredients: [:adjust],
       meals: [:new, :create, :edit, :update, :destroy, :edit_notes, :update_notes,
-              :toggle_eaten],
+              :toggle_eaten, :toggle_exposure],
       measurement_routines: [:edit],
       measurements: [:new, :create, :edit, :update, :destroy, :retake, :toggle_exposure],
       foods: [:new, :create, :edit, :update, :destroy, :toggle, :toggle_exposure,
diff --git a/lib/body_tracking/project_patch.rb b/lib/body_tracking/project_patch.rb
index 9943c73..690e829 100644
--- a/lib/body_tracking/project_patch.rb
+++ b/lib/body_tracking/project_patch.rb
@@ -1,20 +1,24 @@
 module BodyTracking::ProjectPatch
   Project.class_eval do
-    has_many :meals, -> { order "eaten_at DESC" }, dependent: :destroy
-
-    has_many :measurement_routines, dependent: :destroy
-    has_many :measurements, -> { order "taken_at DESC" }, dependent: :destroy,
-      extend: BodyTracking::ItemsWithQuantities, through: :measurement_routines
-    has_many :foods, -> { order "name" }, dependent: :destroy,
-      extend: BodyTracking::ItemsWithQuantities
-
     has_many :sources, dependent: :destroy
     has_many :quantities, -> { order "lft" }, dependent: :destroy
     has_many :units, dependent: :destroy
 
+    has_many :foods, -> { order "name" }, dependent: :destroy,
+      extend: BodyTracking::ItemsWithQuantities
     has_many :nutrient_exposures, as: :view, dependent: :destroy,
       class_name: 'Exposure', extend: BodyTracking::TogglableExposures
     has_many :nutrient_quantities, -> { order "lft" }, through: :nutrient_exposures,
       source: 'quantity'
+
+    has_many :measurement_routines, dependent: :destroy
+    has_many :measurements, -> { order "taken_at DESC" }, dependent: :destroy,
+      extend: BodyTracking::ItemsWithQuantities, through: :measurement_routines
+
+    has_many :meals, -> { order "eaten_at DESC" }, dependent: :destroy
+    has_many :meal_exposures, as: :view, dependent: :destroy,
+      class_name: 'Exposure', extend: BodyTracking::TogglableExposures
+    has_many :meal_quantities, -> { order "lft" }, through: :meal_exposures,
+      source: 'quantity'
   end
 end