Unhealthy diet has a significant impact on one's sports performance. Many athletes and sports fans may not realize that what they consume everyday can affect stamina, endurance, and their physical abilities during training or fighting. High foods of sugar, saturated fat, and preservatives not only have a bad impact on health overall, but can also reduce body efficiency in generating energy, which affects the results of exercise and competition.

One of the main problems of an unhealthy diet is an important nutritional intake reduction. Equal nutrition, including carbohydrates, proteins, healthy fat, vitamins and minerals, is essential to supporting sports performance. For example, carbohydrates serve as a major energy source, whereas proteins are essential to muscle recovery. When someone consumes malnourished processed foods, they risk experiencing faster exhaustion, lower endurance, and increased risk of injury. Studies show that athletes who ignore the right nutritional intake suffer a significant decline in performance compared to those who apply healthy diet (Maughan & Burke, 2012).

In addition, bad diet can also affect mental health and the motivation of one's exercise. Food rich in sugar and saturated fat can cause fluctuations in blood sugar, which in turn affects mood and energy. Stress and anxiety caused by instability can reduce focus and determination, thus impeding sports performance. According to a study by Anton et al. By maintaining good food intake, athletes can increase their concentration and endurance in competition.

Therefore, it's important for athletes and sports fans to pay attention to their diet. Replacing processed foods with healthier choices, such as vegetables, fruits, grain and nonfat proteins, can give you significant propulsion of performance. Increasing awareness of the importance of nutrients in sports can help individuals achieve their goals more effectively and reduce the risk of injury. By prioritizing a healthy diet, athletes will not only experience performance enhancement, but will also support their long-term health (Jeukendrup, 2017).

Source: Maughan, R. J., & Burke, L. M. (2012). Sports Nutrition: Human Kinetics.