```mermaid +render
---
config:
  layout: elk
---
erDiagram
  UserProfile ||--o{ Objective: objective
  UserProfile |o--o{ Subscription: subscription
  UserProfile |o--o{ Diet: diet
  UserProfile }o--o{ Ingredient: allergies
  UserProfile ||--|| User: user

  Ingredient |o--o{ Diet: diet
  Recipe }|--o{ Ingredient: ingredients
  ExercisePlan }|--o{ Exercise: exercises
  ExercisePlan ||--o{ User: user
  MealPlan }|--o{ Recipe: meals
  MealPlan ||--o{ User: user
  Exercise |o--o{ Equipement: equipements
  Exercise |o--o{ BodyPart: bodyparts
  Exercise |o--o{ Muscle: muscles
  
  User{
    int id
    bool is_superuser
    string password
    datetime last_login
    datetime date_joined
    string username
    string email
    bool is_active
    string first_name
    string last_name
    bool is_staff
  }
  UserProfile{
    int id
    date birthdate
    bool sexe
    string gender
    integer weight
    integer height
    string picture
  }
  Objective{
    int id
    string name
    string description
    string image_url
  }
  Subscription {
    int id
    string name
    int price
    string description
    string image_url
  }
  Ingredient{
    int id
    string name
    string description
    string type
    int calories
    int proteins
    int lipids
    int fibers
    int sugars
    int salt
  }
  Recipe{
    int id
    string name
    int minute_preparation
    int minute_preparation
    string summary
    string steps
    string picture
  }
  MealPlan {
    int id
    datetime created_date
  }
  Diet {
    int id
    string name
    string description
  }
  Exercise {
    int id
    string name
    string image
    string instructions
  }
  Equipement {
    int id
    string name
  }
  BodyPart {
    int id
    string name
  }
  Muscle {
    int id
    string name
  }
  ExercisePlan {
    int id
    datetime created_date
  }
```