In this blog post, we’ll explore the meaning and manufacturing process of low-fat foods preferred by people with S-curves and six-pack abs, as well as their role in dieting.

The Culture of Appearance and the Popularity of Diet Foods

“Calorie Balance,” “Special K cereal,” and “Protein Shake Powder” are names familiar to South Koreans in their 20s and 30s as diet foods. These days, South Korea is filled with people so interested in managing their appearance and physique that new terms like “face-perfect” and “body-perfect” have emerged. Since celebrities who frequently appear on TV are all slim, the number of people aspiring to look like them is growing. As a result, there is a strong tendency nowadays for women to be recognized as truly beautiful only if they have an “S-line,” and for men to be recognized as truly handsome only if they have a six-pack, often referred to as “chocolate abs.”

Basic Principles for Achieving an S-Line and the Role of Low-Fat Foods

So, what is the secret to successfully dieting and maintaining a figure for those with an S-line and six-pack? As everyone knows, the basics are “regular exercise and a balanced diet.” However, the key point here is “low-fat foods,” which many people claim are essential components of their diet. Next, let’s examine what low-fat foods actually are.

Types of Fat and Their Effects on the Body

Carbohydrates, protein, and fat are the three major nutrients the human body needs. Among these, fat is an important energy source for people who are physically active, such as athletes. There are various types of fat; vegetables and fruits mainly contain plant-based fats, while meat and dairy products mainly contain animal fats.
Plant-based fats contain high levels of essential fatty acids, such as unsaturated fatty acids, which help keep cells and blood vessels flexible and aid in the elimination of waste products from the body. Therefore, regularly consuming plant-based fats like olive oil can help promote longevity and maintain a slim figure. On the other hand, animal fats are abundant in processed meats like ham, sausage, and bacon, as well as in dairy products such as milk, margarine, and butter. Since they contain large amounts of saturated fat, they can promote the accumulation of waste products in the body, increasing the risk of lifestyle-related diseases such as atherosclerosis, hypertension, diabetes, cancer, and severe obesity. Therefore, it is generally recommended to limit the consumption of beef, pork, and processed foods made primarily from these meats when dieting.

The Purpose and Types of Low-Fat Foods

As shown above, while fat in various foods is an essential nutrient, excessive consumption of animal fats leads to high calorie intake, causing problems such as obesity and cardiovascular diseases. “Low-fat foods” emerged as a solution to prevent these issues. With growing interest in dieting, a wide variety of low-fat products—such as low-fat milk, cheese, butter, yogurt, noodles, and sausages—are now readily available. So, how are these low-fat foods made?

Low-Fat Sausage Production: Fat Replacers

There are two main methods for manufacturing low-fat sausages. The first involves using a food additive called a “fat replacer.” As the name suggests, a fat replacer is an ingredient that replaces the fat in sausages. The most common fat replacer is water. Water is inexpensive and readily available, making it widely used in the production of low-fat sausages. For example, when making a sausage that originally contains 100g of animal fat, if 50g of water is added in place of the fat, the sausage will contain 50g of fat and 50g of water, resulting in a low-calorie, low-fat sausage. While low-fat sausages made with water may not taste as good as the original, they are popular among dieters due to their lower calorie content.
Another example of fat substitutes is non-meat protein substitutes. These include soy protein, egg protein, corn protein, and milk protein. In particular, when casein and whey protein—proteins found in milk—are used as fat substitutes, the meat flavor becomes more intense than when water is used. Therefore, milk proteins are considered excellent fat substitutes.

Low-Fat Sausage Production: Fat-Changer

The second method involves using a “fat-changer.” A representative example of a fat-changer is olestra, an oil that humans cannot digest. When olestra is added during the production of low-fat sausages, the chemical structure of the fat in the sausage is altered into a form that humans cannot digest. Being indigestible means that the ingested food is not broken down inside the body but is rapidly excreted. Therefore, instead of accumulating in the body and turning into fat, it is quickly excreted, limiting weight gain, which is why it is classified as a low-calorie food.

The Importance of Nutritional Balance in Dieting

These days, many people resort to “starvation diets”—such as fasting or skipping meals—in pursuit of a slimmer figure. However, as the saying goes, “You are what you eat,” and a person’s health depends on what they consume. If you starve yourself or continuously consume only low-calorie substitute foods (e.g., Calorie Balance, Special K cereal, etc.), the balance of nutrients in your body will be disrupted, potentially leading to poor health. No matter how beautiful you may look on the outside, losing your health means losing your happiness. Therefore, I hope that those on a diet will appropriately utilize healthy foods, such as low-fat options, while combining a balanced diet with exercise to maintain both weight loss and health.