The phrase "meet one's nutritional requirements" refers to consuming food and/or supplements that provide all necessary vitamins, minerals, macronutrients (carbohydrates, proteins, fats) and micronutrients (vitamins and minerals) for optimal health, growth, and maintenance of bodily functions. It is essential to meet one's nutritional requirements because it helps prevent malnutrition or deficiencies that can lead to various health problems such as anemia, osteoporosis, obesity, heart disease, etc. A balanced diet along with regular exercise and adequate sleep is crucial for overall well-being.