diff --git a/app/controllers/ingredients_controller.rb b/app/controllers/ingredients_controller.rb
index 7da1b49..046fc04 100644
--- a/app/controllers/ingredients_controller.rb
+++ b/app/controllers/ingredients_controller.rb
@@ -4,6 +4,7 @@ class IngredientsController < ApplicationController
 
   def index
     @ingredient = Ingredient.new
+    @nutrient = Nutrient.new
     @ingredients = @project.ingredients
   end
 
diff --git a/app/helpers/ingredients_helper.rb b/app/helpers/ingredients_helper.rb
index 8ddcfa0..0ea8f87 100644
--- a/app/helpers/ingredients_helper.rb
+++ b/app/helpers/ingredients_helper.rb
@@ -1,4 +1,10 @@
 module IngredientsHelper
+  def quantity_options
+    nested_set_options(@project.quantities.diet) do |q|
+      raw("#{'&ensp;' * q.level}#{q.name}")
+    end
+  end
+
   def unit_options
     @project.units.map do |u|
       [u.shortname, u.id]
diff --git a/app/models/ingredient.rb b/app/models/ingredient.rb
index 8fda20d..5c8311b 100644
--- a/app/models/ingredient.rb
+++ b/app/models/ingredient.rb
@@ -4,6 +4,8 @@ class Ingredient < ActiveRecord::Base
   }
 
   belongs_to :project
+  has_many :nutrients
+  accepts_nested_attributes_for :nutrients
 
   validates :project, associated: true
   validates :name, presence: true, uniqueness: {scope: :project_id}
diff --git a/app/models/nutrient.rb b/app/models/nutrient.rb
index b146427..c56c570 100644
--- a/app/models/nutrient.rb
+++ b/app/models/nutrient.rb
@@ -1,2 +1,8 @@
 class Nutrient < ActiveRecord::Base
+  belongs_to :ingredient
+
+  validates :ingredient, presence: true, associated: true
+  validates :quantity, presence: true, associated: true
+  validates :amount, numericality: {greater_than: 0}
+  validates :unit, presence: true, associated: true
 end
diff --git a/app/views/ingredients/_form.html.erb b/app/views/ingredients/_form.html.erb
index 63dd3cd..f871d2a 100644
--- a/app/views/ingredients/_form.html.erb
+++ b/app/views/ingredients/_form.html.erb
@@ -7,4 +7,11 @@
   <%= f.select :ref_unit_id, unit_options, {label: '', required: true} %>
   </p>
   <p><%= f.select :group, group_options, required: true %></p>
+  <%= f.fields_for :nutrients, @nutrient do |ff| %>
+    <p>
+    <%= ff.select :quantity_id, quantity_options, {label: '', required: true} %>
+    <%= ff.number_field :amount, {size: 8, label: '', required: true} %>
+    <%= ff.select :unit_id, unit_options, {label: '', required: true} %>
+    </p>
+  <% end %>
 </div>
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 79b8dc7..52a65dd 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -19,7 +19,7 @@ en:
       heading: 'Summary'
     sidebar:
       heading_body_trackers: 'Body trackers'
-      heding_diet: 'Diet'
+      heading_diet: 'Diet'
       heading_common: 'Common'
       link_summary: 'Summary'
       link_ingredients: 'Ingredients'
diff --git a/db/migrate/001_create_units.rb b/db/migrate/001_create_units.rb
index 8bd7cca..34d22e5 100644
--- a/db/migrate/001_create_units.rb
+++ b/db/migrate/001_create_units.rb
@@ -30,8 +30,8 @@ class CreateUnits < ActiveRecord::Migration
     create_table :nutrients do |t|
       t.references :ingredient
       t.references :quantity
-      t.references :unit
       t.decimal :amount
+      t.references :unit
     end
 
     reversible do |dir|