Hi Mithra,
Different bodies can certainly have different nutrition needs. Things like allergies, digestive challenges and clinical conditions (e.g., diabetes) can cause certain people to need very personalized dietary advice. In these cases, the best option is to speak with a nutrition expert, like a Registered Dietitian, to find a personalized nutrition plan that works best. Beyond these types of factors, most individuals can lead a relatively healthy life by focusing on eating a wide variety of different types of foods. One strategy to help do this is thinking about if you had a plate in front of you and making it half fruits and/or vegetables, a quarter protein rich foods (e.g., nuts, seeds, chickpeas, beans, dairy products, tofu, fish or meat etc.) and a quarter carbohydrate rich foods (e.g., pasta, rice, bread, potatoes, casava, tortilla etc.). Mixing up the different foods in each section with different meals and snacks can go a long way in supporting health.