Many of us come from different cultures and different parts of the world, including Asia, South America, Africa, Europe, and many other places. Because of that, we all grow up around different foods and different ways of eating. Some people may grow up eating Brazilian cuisine, Egyptian food, South African food, Sudanese food, or many other types of cultural dishes.
The fact is that most people prefer to eat foods that they enjoy and feel comfortable with. There are also cultural and personal differences when it comes to food. I may eat chicken, while another person may not. I may drink coffee, while someone else may choose not to. It really depends on what is appropriate for that person, their culture, their lifestyle, and their personal preferences.
When we start talking about nutrition, having a proper understanding of the food you are consuming becomes very important. Someone who has studied nutrition, fitness, or has a certification in that area may have a stronger understanding of how different foods affect the body. The truth is that not every trainer fully understands nutrition. Some trainers may understand workouts very well, but they may not understand as much about digestion, food choices, diet planning, or how the body processes the food we eat.
For example, you may have heard people say that eating a banana before a workout can be helpful. One reason is that bananas are easy for many people to digest and they contain carbohydrates. Carbohydrates are one of the body's main sources of energy, so having some before training may help give your body fuel for the workout. This can make it easier to train with more energy and perform better.
Nutrition is not about telling every person to eat the exact same foods. It is about understanding the person, their culture, their goals, and how their body responds to different foods.