As a person ages, physiological changes take place. At this stage, the body fat increases, while the muscle and bone weight decreases.
Therefore, nutritional needs also change, and energy requirements are less as the Basal Metabolic Rate (BMR) starts decreasing from the age of 35. To maintain an ideal body weight as per age and body frame, calorie intake should be reduced.
Although protein, minerals and vitamins requirements remain unchanged, higher intake of minerals and vitamins especially calcium, iron and B complex vitamins are crucial for the processes of digestion, absorption and utilization.