Dietary restrictions refer to specific dietary requirements or limitations that an individual may have due to medical reasons, personal preferences, cultural practices, or religious beliefs. These restrictions can include avoiding certain foods or ingredients such as gluten-free diets for those with celiac disease, lactose-free diets for people who are intolerant to dairy products, vegetarian or vegan diets that exclude meat and animal products, or kosher or halal diets that follow specific religious guidelines. People may also have food allergies or sensitivities that require them to avoid certain foods for safety reasons. Understanding and accommodating these dietary restrictions is important in providing nutritious and safe meals for individuals with such needs.