how do nutritional needs change from young adulthood through old age?\nfewer calories are needed.\nfewer…

Brief Explanations:

As people age from young adulthood to old age, their metabolic rate generally decreases. This means they require fewer calories to maintain their body functions. Vitamin needs do not typically decrease with age; in fact, some may increase. Water - needs remain relatively stable or may even decrease slightly in some cases due to reduced kidney function. Protein needs do not necessarily increase with age; in some cases, they may remain the same or even decrease slightly depending on activity levels.

Answer:

Fewer calories are needed.