Which of the following is a vital factor to consider when developing a nutrition plan for an individual?

When developing a nutrition plan for an individual, the client's age is a vital factor to consider because age significantly influences metabolic rates, nutritional needs, and lifestyle factors. Different age groups have varying requirements for macronutrients and micronutrients due to developmental changes, hormonal shifts, and health conditions that can arise at different life stages. For example, children and adolescents have higher requirements for certain nutrients to support growth, while older adults may need to focus on vitamins and minerals that support bone health and maintain muscle mass. By accounting for age, a nutrition plan can be tailored to meet the specific physiological and biological needs of the individual, ensuring better adherence and optimal health outcomes.