diff --git a/app/Enums/IngredientUnit.php b/app/Enums/IngredientUnit.php
new file mode 100644
index 0000000..43f25f1
--- /dev/null
+++ b/app/Enums/IngredientUnit.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace App\Enums;
+
+enum IngredientUnit: string
+{
+    case GRAM = 'g';
+    case KILOGRAM = 'kg';
+
+    case MILLILITER = 'ml';
+    case LITER = 'l';
+
+    case PIECE = 'piece';
+    case TEASPOON = 'tsp';
+    case TABLESPOON = 'tbsp';
+}
diff --git a/app/Http/Controllers/MealPostController.php b/app/Http/Controllers/MealPostController.php
index 87a81dc..26355a5 100644
--- a/app/Http/Controllers/MealPostController.php
+++ b/app/Http/Controllers/MealPostController.php
@@ -13,6 +13,7 @@ use Illuminate\Http\Request;
 use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
 use Illuminate\Http\Response;
 use Illuminate\Support\Collection;
+use Illuminate\Support\Facades\DB;
 
 class MealPostController extends Controller
 {
@@ -66,12 +67,26 @@ class MealPostController extends Controller
 
     public function store(MealPostsRequest $request): JsonResponse
     {
-        $mealPost = MealPosts::create([
-            ...$this->getValidatedDataWithImageUrl($request),
-            'user_id' => $request->user()->getKey(),
-        ]);
+        $data = $this->getValidatedDataWithImageUrl($request);
+        $ingredients = $data['ingredients'] ?? [];
+
+        unset($data['ingredients']);
+
+        $mealPost = DB::transaction(function () use ($data, $ingredients, $request): MealPosts {
+            $mealPost = MealPosts::create([
+                ...$data,
+                'user_id' => $request->user()->getKey(),
+            ]);
+
+            if ($ingredients !== []) {
+                $mealPost->ingredients()->createMany($ingredients);
+            }
+
+            return $mealPost;
+        });
 
         $mealPost->setRelation('user', $request->user());
+        $mealPost->loadMissing('ingredients');
 
         return (new MealPostsResource($mealPost))
             ->response()
@@ -82,16 +97,36 @@ class MealPostController extends Controller
     {
         $this->abortIfNotOwner($request, $mealPost);
 
-        return new MealPostsResource($mealPost->loadMissing('user:id,name,avatar_url'));
+        return new MealPostsResource($mealPost->loadMissing('user:id,name,avatar_url', 'ingredients'));
     }
 
     public function update(MealPostsRequest $request, MealPosts $mealPost): MealPostsResource
     {
         $this->abortIfNotOwner($request, $mealPost);
 
-        $mealPost->update($this->getValidatedDataWithImageUrl($request));
+        $data = $this->getValidatedDataWithImageUrl($request);
+        $shouldSyncIngredients = array_key_exists('ingredients', $data);
+        $ingredients = $data['ingredients'] ?? [];
 
-        return new MealPostsResource($mealPost->refresh()->loadMissing('user:id,name,avatar_url'));
+        unset($data['ingredients']);
+
+        $mealPost = DB::transaction(function () use ($data, $ingredients, $mealPost, $shouldSyncIngredients): MealPosts {
+            if ($data !== []) {
+                $mealPost->update($data);
+            }
+
+            if ($shouldSyncIngredients) {
+                $mealPost->ingredients()->delete();
+
+                if ($ingredients !== []) {
+                    $mealPost->ingredients()->createMany($ingredients);
+                }
+            }
+
+            return $mealPost->refresh();
+        });
+
+        return new MealPostsResource($mealPost->loadMissing('user:id,name,avatar_url', 'ingredients'));
     }
 
     public function destroy(Request $request, MealPosts $mealPost): Response
diff --git a/app/Http/Requests/MealPostIngredientsRequest.php b/app/Http/Requests/MealPostIngredientsRequest.php
new file mode 100644
index 0000000..fa0b13e
--- /dev/null
+++ b/app/Http/Requests/MealPostIngredientsRequest.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Http\Requests;
+
+use App\Enums\IngredientUnit;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class MealPostIngredientsRequest extends FormRequest
+{
+    public function rules(): array
+    {
+        return [
+            'meal_posts_id' => ['required', 'exists:meal_posts,id'],
+            'position' => ['required', 'integer'],
+            'ingredient' => ['required', 'string'],
+            'unit' => ['required', Rule::enum(IngredientUnit::class)],
+        ];
+    }
+
+    public function authorize(): bool
+    {
+        return true;
+    }
+}
diff --git a/app/Http/Requests/MealPostsRequest.php b/app/Http/Requests/MealPostsRequest.php
index 392d5ab..2d3525b 100644
--- a/app/Http/Requests/MealPostsRequest.php
+++ b/app/Http/Requests/MealPostsRequest.php
@@ -2,6 +2,7 @@
 
 namespace App\Http\Requests;
 
+use App\Enums\IngredientUnit;
 use App\Enums\MealPostType;
 use App\Enums\MealPostVisibility;
 use Illuminate\Foundation\Http\FormRequest;
@@ -25,6 +26,11 @@ class MealPostsRequest extends FormRequest
             'eaten_at' => [$isCreating ? 'required' : 'sometimes', 'date'],
             'type' => [$isCreating ? 'required' : 'sometimes', Rule::enum(MealPostType::class)],
             'visibility' => ['sometimes', Rule::enum(MealPostVisibility::class)],
+            'ingredients' => ['sometimes', 'array'],
+            'ingredients.*' => ['required', 'array:position,ingredient,unit'],
+            'ingredients.*.position' => ['required', 'integer', 'min:0'],
+            'ingredients.*.ingredient' => ['required', 'string', 'max:255'],
+            'ingredients.*.unit' => ['required', Rule::enum(IngredientUnit::class)],
         ];
     }
 
diff --git a/app/Http/Resources/MealPostIngredientsResource.php b/app/Http/Resources/MealPostIngredientsResource.php
new file mode 100644
index 0000000..c5980d3
--- /dev/null
+++ b/app/Http/Resources/MealPostIngredientsResource.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Http\Resources;
+
+use App\Models\MealPostIngredients;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+/** @mixin MealPostIngredients */
+class MealPostIngredientsResource extends JsonResource
+{
+    public function toArray(Request $request): array
+    {
+        return [
+            'id' => $this->id,
+            'position' => $this->position,
+            'ingredient' => $this->ingredient,
+            'unit' => $this->unit,
+            'created_at' => $this->created_at,
+            'updated_at' => $this->updated_at,
+
+            'meal_posts_id' => $this->meal_posts_id,
+
+            'mealPosts' => new MealPostsResource($this->whenLoaded('mealPosts')),
+        ];
+    }
+}
diff --git a/app/Http/Resources/MealPostsResource.php b/app/Http/Resources/MealPostsResource.php
index ffbe0f1..dc9e9eb 100644
--- a/app/Http/Resources/MealPostsResource.php
+++ b/app/Http/Resources/MealPostsResource.php
@@ -29,6 +29,7 @@ class MealPostsResource extends JsonResource
             'eatenAt' => $this->eaten_at,
             'createdAt' => $this->created_at,
             'updatedAt' => $this->updated_at,
+            'ingredients' => MealPostIngredientsResource::collection($this->whenLoaded('ingredients')),
 
             'user' => [
                 'name' => $user?->name,
diff --git a/app/Models/MealPostIngredients.php b/app/Models/MealPostIngredients.php
new file mode 100644
index 0000000..619f5a7
--- /dev/null
+++ b/app/Models/MealPostIngredients.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Models;
+
+use App\Enums\IngredientUnit;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+
+class MealPostIngredients extends Model
+{
+    protected $fillable = [
+        'meal_posts_id',
+        'position',
+        'ingredient',
+        'unit',
+    ];
+
+    public function mealPosts(): BelongsTo
+    {
+        return $this->belongsTo(MealPosts::class);
+    }
+
+    protected function casts(): array
+    {
+        return [
+            'unit' => IngredientUnit::class,
+        ];
+    }
+}
diff --git a/app/Models/MealPosts.php b/app/Models/MealPosts.php
index faeb47d..755e1ea 100644
--- a/app/Models/MealPosts.php
+++ b/app/Models/MealPosts.php
@@ -8,6 +8,7 @@ use Illuminate\Database\Eloquent\Concerns\HasUlids;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 use Illuminate\Database\Eloquent\SoftDeletes;
 
 class MealPosts extends Model
@@ -37,12 +38,17 @@ class MealPosts extends Model
         return $this->belongsTo(User::class);
     }
 
+    public function ingredients(): HasMany
+    {
+        return $this->hasMany(MealPostIngredients::class)->orderBy('position');
+    }
+
     protected function casts(): array
     {
         return [
             'eaten_at' => 'datetime',
             'visibility' => MealPostVisibility::class,
-            'type' => MealPostType::class
+            'type' => MealPostType::class,
         ];
     }
 }
diff --git a/app/Policies/MealPostIngredientsPolicy.php b/app/Policies/MealPostIngredientsPolicy.php
new file mode 100644
index 0000000..f69fcef
--- /dev/null
+++ b/app/Policies/MealPostIngredientsPolicy.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace App\Policies;
+
+use App\Models\MealPostIngredients;
+use App\Models\User;
+use Illuminate\Auth\Access\HandlesAuthorization;
+
+class MealPostIngredientsPolicy
+{
+    use HandlesAuthorization;
+
+    public function viewAny(User $user): bool
+    {
+        return true;
+
+    }
+
+    public function view(User $user, MealPostIngredients $mealPostIngredients): bool
+    {
+        return true;
+    }
+
+    public function create(User $user): bool
+    {
+        return true;
+    }
+
+    public function update(User $user, MealPostIngredients $mealPostIngredients): bool
+    {
+        return true;
+    }
+
+    public function delete(User $user, MealPostIngredients $mealPostIngredients): bool
+    {
+        return true;
+    }
+
+    public function restore(User $user, MealPostIngredients $mealPostIngredients): bool
+    {
+        return true;
+    }
+
+    public function forceDelete(User $user, MealPostIngredients $mealPostIngredients): bool
+    {
+        return true;
+    }
+}
diff --git a/config/ai.php b/config/ai.php
index f722b28..c2b1491 100644
--- a/config/ai.php
+++ b/config/ai.php
@@ -13,11 +13,11 @@ return [
     |
     */
 
-    'default' => 'openai',
+    'default' => 'deepseek',
     'default_for_images' => 'gemini',
     'default_for_audio' => 'openai',
     'default_for_transcription' => 'openai',
-    'default_for_embeddings' => 'openai',
+    'default_for_embeddings' => 'deepseek',
     'default_for_reranking' => 'cohere',
 
     /*
diff --git a/database/migrations/2026_05_18_122038_create_meal_post_ingredients_table.php b/database/migrations/2026_05_18_122038_create_meal_post_ingredients_table.php
new file mode 100644
index 0000000..9e30c69
--- /dev/null
+++ b/database/migrations/2026_05_18_122038_create_meal_post_ingredients_table.php
@@ -0,0 +1,25 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('meal_post_ingredients', function (Blueprint $table) {
+            $table->id();
+            $table->foreignUlid('meal_posts_id')->constrained('meal_posts')->cascadeOnDelete();
+            $table->integer('position');
+            $table->string('ingredient');
+            $table->string('unit');
+            $table->timestamps();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('meal_post_ingredients');
+    }
+};
diff --git a/tests/Feature/MealPostIngredientsTest.php b/tests/Feature/MealPostIngredientsTest.php
new file mode 100644
index 0000000..95199a4
--- /dev/null
+++ b/tests/Feature/MealPostIngredientsTest.php
@@ -0,0 +1,176 @@
+<?php
+
+use App\Enums\IngredientUnit;
+use App\Enums\MealPostType;
+use App\Models\MealPosts;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Laravel\Sanctum\Sanctum;
+
+uses(RefreshDatabase::class);
+
+it('creates a meal post with ingredients', function () {
+    $user = User::factory()->create();
+
+    Sanctum::actingAs($user);
+
+    $response = $this->postJson('/api/meal-posts', [
+        'image_url' => 'https://example.com/meal.jpg',
+        'title' => 'Bowl saumon avocat',
+        'eaten_at' => '2026-05-16T12:00:00.000Z',
+        'type' => MealPostType::LUNCH->value,
+        'ingredients' => [
+            [
+                'position' => 1,
+                'ingredient' => 'Riz',
+                'unit' => IngredientUnit::GRAM->value,
+            ],
+            [
+                'position' => 2,
+                'ingredient' => 'Saumon',
+                'unit' => IngredientUnit::GRAM->value,
+            ],
+        ],
+    ]);
+
+    $response
+        ->assertCreated()
+        ->assertJsonPath('data.ingredients.0.ingredient', 'Riz')
+        ->assertJsonPath('data.ingredients.0.unit', IngredientUnit::GRAM->value)
+        ->assertJsonPath('data.ingredients.1.ingredient', 'Saumon');
+
+    $this->assertDatabaseHas('meal_post_ingredients', [
+        'meal_posts_id' => $response->json('data.id'),
+        'position' => 1,
+        'ingredient' => 'Riz',
+        'unit' => IngredientUnit::GRAM->value,
+    ]);
+});
+
+it('validates meal post ingredients', function () {
+    Sanctum::actingAs(User::factory()->create());
+
+    $response = $this->postJson('/api/meal-posts', [
+        'image_url' => 'https://example.com/meal.jpg',
+        'title' => 'Bowl saumon avocat',
+        'eaten_at' => '2026-05-16T12:00:00.000Z',
+        'type' => MealPostType::LUNCH->value,
+        'ingredients' => [
+            [
+                'position' => -1,
+                'ingredient' => '',
+                'unit' => 'cup',
+            ],
+        ],
+    ]);
+
+    $response
+        ->assertUnprocessable()
+        ->assertJsonValidationErrors([
+            'ingredients.0.position',
+            'ingredients.0.ingredient',
+            'ingredients.0.unit',
+        ]);
+});
+
+it('replaces meal post ingredients when updating a meal post', function () {
+    $user = User::factory()->create();
+    $mealPost = MealPosts::factory()->for($user, 'user')->create();
+    $mealPost->ingredients()->createMany([
+        [
+            'position' => 1,
+            'ingredient' => 'Riz',
+            'unit' => IngredientUnit::GRAM,
+        ],
+        [
+            'position' => 2,
+            'ingredient' => 'Saumon',
+            'unit' => IngredientUnit::GRAM,
+        ],
+    ]);
+
+    Sanctum::actingAs($user);
+
+    $response = $this->patchJson("/api/meal-posts/{$mealPost->id}", [
+        'ingredients' => [
+            [
+                'position' => 1,
+                'ingredient' => 'Pates',
+                'unit' => IngredientUnit::GRAM->value,
+            ],
+            [
+                'position' => 2,
+                'ingredient' => 'Huile olive',
+                'unit' => IngredientUnit::TABLESPOON->value,
+            ],
+        ],
+    ]);
+
+    $response
+        ->assertOk()
+        ->assertJsonPath('data.ingredients.0.ingredient', 'Pates')
+        ->assertJsonPath('data.ingredients.1.unit', IngredientUnit::TABLESPOON->value);
+
+    $this->assertDatabaseMissing('meal_post_ingredients', [
+        'meal_posts_id' => $mealPost->id,
+        'ingredient' => 'Riz',
+    ]);
+    $this->assertDatabaseHas('meal_post_ingredients', [
+        'meal_posts_id' => $mealPost->id,
+        'position' => 1,
+        'ingredient' => 'Pates',
+        'unit' => IngredientUnit::GRAM->value,
+    ]);
+});
+
+it('keeps existing ingredients when updating a meal post without ingredients', function () {
+    $user = User::factory()->create();
+    $mealPost = MealPosts::factory()->for($user, 'user')->create([
+        'title' => 'Ancien titre',
+    ]);
+    $mealPost->ingredients()->create([
+        'position' => 1,
+        'ingredient' => 'Riz',
+        'unit' => IngredientUnit::GRAM,
+    ]);
+
+    Sanctum::actingAs($user);
+
+    $response = $this->patchJson("/api/meal-posts/{$mealPost->id}", [
+        'title' => 'Nouveau titre',
+    ]);
+
+    $response
+        ->assertOk()
+        ->assertJsonPath('data.title', 'Nouveau titre')
+        ->assertJsonPath('data.ingredients.0.ingredient', 'Riz');
+
+    $this->assertDatabaseHas('meal_post_ingredients', [
+        'meal_posts_id' => $mealPost->id,
+        'ingredient' => 'Riz',
+    ]);
+});
+
+it('removes meal post ingredients when updating with an empty ingredients list', function () {
+    $user = User::factory()->create();
+    $mealPost = MealPosts::factory()->for($user, 'user')->create();
+    $mealPost->ingredients()->create([
+        'position' => 1,
+        'ingredient' => 'Riz',
+        'unit' => IngredientUnit::GRAM,
+    ]);
+
+    Sanctum::actingAs($user);
+
+    $response = $this->patchJson("/api/meal-posts/{$mealPost->id}", [
+        'ingredients' => [],
+    ]);
+
+    $response
+        ->assertOk()
+        ->assertJsonCount(0, 'data.ingredients');
+
+    $this->assertDatabaseMissing('meal_post_ingredients', [
+        'meal_posts_id' => $mealPost->id,
+    ]);
+});