BMR, TDEE and exact calorie targets for weight loss, maintenance and muscle gain at age 52.
Using the Mifflin-St Jeor equation with average US height and weight for a man aged 52, the resting metabolic rate (BMR) is approximately 1729 kcal/day. With typical daily activity included, total calorie expenditure (TDEE) ranges from 2074 kcal (sedentary) to 2982 kcal (very active).
| Goal | Daily Calories | Expected Result |
|---|---|---|
| 🔵 Aggressive weight loss | 1627 kcal | ~0.75 kg/week |
| 📉 Weight loss | 1877 kcal | ~0.5 kg/week |
| ✅ Maintenance | 2377 kcal | Weight stable |
| 💪 Lean bulk | 2677 kcal | ~0.25 kg/week |
| 🏋️ Aggressive bulk | 2877 kcal | ~0.5 kg/week |
| Activity Level | Description | Daily Calories |
|---|---|---|
| Sedentary | Desk job, minimal movement | 2074 kcal |
| Lightly active | 1–3 workouts/week | 2377 kcal |
| Moderately active | 3–5 workouts/week | 2679 kcal |
| Very active | Hard training 6–7 days/week | 2982 kcal |
Metabolic rate declines approximately 1–2% per decade after age 30, driven primarily by muscle loss (sarcopenia) rather than any inherent slowdown. At age 52, your BMR of 1729 kcal reflects your current muscle mass, height and hormonal status. The single most effective way to maintain or raise your BMR is resistance training — each kilogram of lean muscle burns roughly 13 kcal/day at rest.
| Age | Estimated BMR (man) | Change vs age 52 |
|---|---|---|
| 42 | 1779 kcal | +50 kcal |
| 47 | 1754 kcal | +25 kcal |
| 52 | 1729 kcal | — |
| 57 | 1704 kcal | -25 kcal |
| 62 | 1679 kcal | -50 kcal |
| Macro | % of Calories | Grams/day | Calories |
|---|---|---|---|
| Protein | 30% | 178 g | 712 kcal |
| Carbohydrates | 40% | 238 g | 952 kcal |
| Fat | 30% | 79 g | 711 kcal |
At age 52, protein intake is especially important. Aim for at least 71–89 g/day to maintain muscle mass, whether you're in a deficit, at maintenance, or in a surplus.
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