Work out senior calorie needs instantly with clear inputs, formula shown and shareable results.
Applies Mifflin-St Jeor with an activity factor and pairs it with the higher protein target of 1.0 to 1.2 g/kg recommended for older adults.
Older adult energy and protein
BMR = 10 x weight + 6.25 x height - 5 x age + 5 or -161; protein targets of 1.0 to 1.2 g/kg are advised to limit sarcopenia
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
Anabolic resistance means older muscle responds less to the same protein dose, so higher intake is needed to maintain mass.
Lean mass and activity both decline, reducing requirements by roughly 100 kcal a decade after midlife.