Today we live in a paradox: eating poorly has become normal. Ultra-processed foods have entered the routine once and for all, sold as a quick, practical and even “harmless” solution. Those who choose real food are often seen as exaggerated, rigid or obsessed with health. But, from the point of view of sports medicine and human physiology, the scenario is the opposite: the body was not designed to operate with high consumption of sugar, refined flours, additives and hyperpalatable foods every day. It works best when it receives what it is biologically prepared for: proteins, vegetables, fruits, fiber, good quality fats and water.
What the ultra-processed routine does to the body – and why performance drops
Most ultra-processed foods combine three elements that harm the body over time: excess simple carbohydrates, low-quality fats and low fiber content. This combination causes glucose spikes, triggering intense and repeated hormonal responses. The result is a cycle of early starvation, chronic inflammation, and accumulation of body fat. The impact on physical performance is direct: less sustained energy, worse muscle recovery, greater propensity for injuries and a drop in sleep quality.
Studies show that diets rich in ultra-processed foods increase the risk of heart disease, insulin resistance, obesity and even cognitive decline over the years. For the athlete – amateur or professional – this means less muscle power, less resistance, greater fatigue and worse ability to adapt to training. Eating improperly doesn’t just affect future health; compromises day-to-day performance.
Why eating well is not a restriction – it is self-care with a cumulative effect
Opting for real food shouldn’t be treated as radicalism. It’s simply aligning your diet with what your body needs to function well. Lean proteins promote satiety and support muscle mass. Vegetables, fruits and fiber help modulate inflammation, balance blood glucose and nourish the intestine. Good fats promote hormonal balance and provide long-lasting energy. Water is essential for regulating temperature, circulation, digestion and physical performance.
The central point is not to ban, demonize or moralize foods. It is understanding that health is not built with exceptions: it is the result of the sum of small choices repeated daily. Eating real food reduces the risk of injury, accelerates post-workout recovery, improves mood, attention and productivity. It’s about responsibility towards your own body, not rigidity.
Promoting health means getting back to the simple. The basics that have always worked: real food, movement, adequate sleep and consistency. Between radicalism and carelessness, there is a balanced path that returns to the body what it understands, recognizes and knows how to metabolize.
Dr. Rafael Rivas Pasco – CRM/SC 15495 | EQR 15,008
Sports Doctor
Member of the Brazilian Society of Exercise and Sports Medicine (SBMEE)
Membro da Brazil Health
