Junk food refers to a variety of food items that are typically high in calories, sugars, unhealthy fats, and salt, but low in essential nutrients such as vitamins, minerals, and fiber. Common examples include fast food, sugary snacks, processed foods, and sugary beverages. These foods are often convenient, affordable, and highly palatable, making them popular choices for many people, especially in fast-paced lifestyles.

While junk food can be enjoyable and satisfying in the short term, its regular consumption is linked to various health issues, including obesity, heart disease, diabetes, and other chronic conditions. The appeal of junk food often lies in its taste, texture, and the instant gratification it provides, but it is important to consume it in moderation and balance it with healthier food options to maintain overall well-being.