diff --git a/app/controllers/ingredients_controller.rb b/app/controllers/ingredients_controller.rb
index efcd0b2..e02fb2b 100644
--- a/app/controllers/ingredients_controller.rb
+++ b/app/controllers/ingredients_controller.rb
@@ -9,7 +9,7 @@ class IngredientsController < ApplicationController
     @ingredient = @project.ingredients.new
     # passing attr for Nutrient after_initialize
     @ingredient.nutrients.new(ingredient: @ingredient)
-    @ingredients = @project.ingredients.includes(:ref_unit)
+    @ingredients = @project.ingredients.includes(:ref_unit, :source)
     @ingredients << @ingredient
   end
 
@@ -19,7 +19,7 @@ class IngredientsController < ApplicationController
       flash[:notice] = 'Created new ingredient'
       redirect_to project_ingredients_url(@project)
     else
-      @ingredients = @project.ingredients.includes(:ref_unit)
+      @ingredients = @project.ingredients.includes(:ref_unit, :source)
       @ingredient.nutrients.new(ingredient: @ingredient) if @ingredient.nutrients.empty?
       render :index
     end
@@ -39,6 +39,7 @@ class IngredientsController < ApplicationController
     if params.has_key?(:file)
       quantities = @project.quantities.map { |q| [q.name, q] }.to_h
       units = @project.units.map { |u| [u.shortname, u] }.to_h
+      sources = @project.sources.map { |s| [s.name, s] }.to_h
       ingredients_params = []
       column_units = {}
 
@@ -47,11 +48,17 @@ class IngredientsController < ApplicationController
         unless r.has_key?('Name')
           warnings << "Line 1: required 'Name' column is missing" if line == 2
         end
+        if r['Source'].present? && sources[r['Source']].blank?
+          warnings << "Line #{line}: unknown source name #{r['Source']}"
+        end
+
         i_params = {
           name: r.delete('Name'),
           ref_amount: 100.0,
           ref_unit: units['g'],
           group: r.delete('Group') || :other,
+          source: sources[r['Source']],
+          source_ident: r.delete('SourceIdent'),
           nutrients_attributes: []
         }
 
@@ -134,6 +141,8 @@ class IngredientsController < ApplicationController
       :ref_amount,
       :ref_unit_id,
       :group,
+      :source_id,
+      :source_ident,
       nutrients_attributes:
       [
         :id,
diff --git a/app/helpers/ingredients_helper.rb b/app/helpers/ingredients_helper.rb
index 0ea8f87..06bac6d 100644
--- a/app/helpers/ingredients_helper.rb
+++ b/app/helpers/ingredients_helper.rb
@@ -11,6 +11,12 @@ module IngredientsHelper
     end
   end
 
+  def source_options
+    @project.sources.map do |s|
+      [s.name, s.id]
+    end
+  end
+
   def group_options
     translations = t('.groups')
     Ingredient.groups.map do |k,v|
diff --git a/app/models/ingredient.rb b/app/models/ingredient.rb
index 0a25f40..038823b 100644
--- a/app/models/ingredient.rb
+++ b/app/models/ingredient.rb
@@ -6,6 +6,7 @@ class Ingredient < ActiveRecord::Base
 
   belongs_to :project, required: true
   belongs_to :ref_unit, class_name: 'Unit', required: true
+  belongs_to :source, required: false
 
   has_many :nutrients, inverse_of: :ingredient, dependent: :destroy, validate: true
   validates :nutrients, presence: true
diff --git a/app/views/ingredients/_form.html.erb b/app/views/ingredients/_form.html.erb
index b5624ff..d49ee4a 100644
--- a/app/views/ingredients/_form.html.erb
+++ b/app/views/ingredients/_form.html.erb
@@ -7,6 +7,14 @@
   <%= f.select :ref_unit_id, unit_options, {label: '', required: true} %>
   </p>
   <p><%= f.select :group, group_options, required: true %></p>
+  <div class="splitcontent">
+    <div class="splitcontentleft">
+      <p><%= f.select :source_id, source_options, required: false, include_blank: true %></p>
+    </div>
+    <div class="splitcontentright">
+      <p><%= f.text_field :source_ident, size: 25, required: false %></p>
+    </div>
+  </div>
   <% @ingredient.nutrients.each_with_index do |n, index| %>
     <%= f.fields_for 'nutrients_attributes', n, index: '' do |ff| %>
       <p class="nutrient">
diff --git a/app/views/ingredients/index.html.erb b/app/views/ingredients/index.html.erb
index 1a966da..6c0dd9f 100644
--- a/app/views/ingredients/index.html.erb
+++ b/app/views/ingredients/index.html.erb
@@ -64,7 +64,10 @@
           <td class="name"><%= i.name %></td>
           <td class="reference"><%= i.ref_amount %> [<%= i.ref_unit.shortname %>]</td>
           <td class="group"><%= i.group %></td>
-          <td class="source"><%#= i.source %></td>
+          <td class="source">
+            <%= i.source.name if i.source.present? %>
+            <%= ", #{i.source_ident}" if i.source_ident.present? %>
+          </td>
           <td><%= delete_link ingredient_path(i), data: {} %></td>
         </tr>
       <% end %>
diff --git a/config/locales/en.yml b/config/locales/en.yml
index c8f533d..9af04bb 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -4,7 +4,8 @@ en:
   field_action: 'Action'
   field_reference: 'Reference'
   field_group: 'Group'
-  field_source: 'Source'
+  field_source: 'Data source'
+  field_source_ident: 'Source identifier'
   field_nutrients: 'Nutrients:'
   field_domain: 'Domain'
   field_parent_quantity: 'Parent'
@@ -44,6 +45,7 @@ en:
         names are:
         (1) ingredient attributes, case sensitive:
         "Name" - required, "Reference" - defaults to 100[g], "Group" - defaults to "other",
+        "Source" - optional, "SourceIdent" - optional,
         (2) quantities'' names with unit short name in square brackets.
         Sample header: "Name,Reference,Group,Proteins[g],Fats[g],Carbohydrates[g]".
         Sample data row: "Brussels,100[g],other,3.4,300[mg],9".
diff --git a/db/migrate/001_create_units.rb b/db/migrate/001_create_units.rb
index c7d9d7a..acae5c7 100644
--- a/db/migrate/001_create_units.rb
+++ b/db/migrate/001_create_units.rb
@@ -164,8 +164,8 @@ class CreateUnits < ActiveRecord::Migration
         v21 = Quantity.create project: nil, domain: :diet, parent: v1, name: "Vitamin K",
           description: ""
 
-        Source.create project: nil, name: "Nutrition label",
-          description: "From package nutrition label"
+        Source.create project: nil, name: "nutrition label",
+          description: "nutrition facts taken from package nutrition label"
       end
       dir.down do
         Unit.where(project: nil).delete_all