diff --git a/pptp/forms/products.py b/pptp/forms/products.py
index a7edbdc..e606169 100644
--- a/pptp/forms/products.py
+++ b/pptp/forms/products.py
@@ -37,6 +37,7 @@ class Meta:
             'package_size',
             'package_size_unit',
             'is_supplemented_food',
+            'is_TDS',
             'is_variety_pack',
             'is_individually_packaged',
             'has_preparation_instructions',
@@ -72,6 +73,7 @@ class Meta:
                 'class': 'form-select'
             }),
             'is_supplemented_food': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
+            'is_TDS': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
             'is_variety_pack': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
             'is_individually_packaged': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
             'has_preparation_instructions': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
diff --git a/pptp/migrations/0015_product_is_tds_alter_product_is_supplemented_food.py b/pptp/migrations/0015_product_is_tds_alter_product_is_supplemented_food.py
new file mode 100644
index 0000000..220d64c
--- /dev/null
+++ b/pptp/migrations/0015_product_is_tds_alter_product_is_supplemented_food.py
@@ -0,0 +1,28 @@
+# Generated by Django 4.2.3 on 2025-10-21 15:28
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("pptp", "0014_product_has_disease_risk_reduction_claim_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="product",
+            name="is_TDS",
+            field=models.BooleanField(
+                default=False,
+                help_text="Check if this product is part of the Total Diet Study",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="product",
+            name="is_supplemented_food",
+            field=models.BooleanField(
+                default=False,
+                help_text="Check if this is a Supplemented Food as defined by the regulations (whether or not it has a supplemental caution label)",
+            ),
+        ),
+    ]
diff --git a/pptp/models/products.py b/pptp/models/products.py
index 06eb36b..f484eb7 100644
--- a/pptp/models/products.py
+++ b/pptp/models/products.py
@@ -71,7 +71,11 @@ class Product(models.Model):
     )
     is_supplemented_food = models.BooleanField(
         default=False,
-        help_text=_("Check if this is a Supplemented Food as indicated by the front-of-pack caution identifier and supplemented food facts table")
+        help_text=_("Check if this is a Supplemented Food as defined by the regulations (whether or not it has a supplemental caution label)")
+    )
+    is_TDS = models.BooleanField(
+        default=False,
+        help_text=_("Check if this product is part of the Total Diet Study")
     )
     is_individually_packaged = models.BooleanField(
         default=False,
diff --git a/pptp/templates/pptp/products/combined_upload.html b/pptp/templates/pptp/products/combined_upload.html
index f259d36..3c81fba 100644
--- a/pptp/templates/pptp/products/combined_upload.html
+++ b/pptp/templates/pptp/products/combined_upload.html
@@ -102,6 +102,12 @@ <h1 class="h3 mb-0">Product Submission</h1>
                   {{ form.is_supplemented_food.label }}
                 </label>
               </div>
+              <div class="form-check">
+                {{ form.is_TDS }}
+                <label class="form-check-label" for="{{ form.is_TDS.id_for_label }}">
+                  {{ form.is_TDS.label }}
+                </label>
+              </div>
             </div>
 
             <!-- Supplemented Food Flags Section -->
diff --git a/pptp/templates/pptp/products/dashboard.html b/pptp/templates/pptp/products/dashboard.html
index 0e7b60d..59b9057 100644
--- a/pptp/templates/pptp/products/dashboard.html
+++ b/pptp/templates/pptp/products/dashboard.html
@@ -177,6 +177,9 @@ <h5 class="mb-1">{{ product.product_name }}</h5>
                         {% if product.is_supplemented_food %}
                         <span class="badge bg-secondary">{% trans "Supplemented Food" %}</span>
                         {% endif %}
+                        {% if product.is_TDS %}
+                        <span class="badge bg-secondary">{% trans "TDS" %}</span>
+                        {% endif %}
                     </div>
                 </a>
                 {% empty %}
diff --git a/pptp/views/products.py b/pptp/views/products.py
index f424258..9879b1c 100644
--- a/pptp/views/products.py
+++ b/pptp/views/products.py
@@ -37,6 +37,7 @@ def get_context_data(self, **kwargs):
         
         context['variety_packs'] = user_products.filter(is_variety_pack=True).count()
         context['supplemented_foods'] = user_products.filter(is_supplemented_food=True).count()
+        context['TDS'] = user_products.filter(is_TDS=True).count()
         
         thirty_days_ago = timezone.now() - timedelta(days=30)
         context['recent_products'] = user_products.filter(created_at__gte=thirty_days_ago).count()