# Body Metrics and Daily Targets

BMI, basal metabolic rate, and daily energy needs — matched to the AKG group whose official nutrient targets apply.

- Method: `GET`
- Path: `/v1/health/body-metrics`

**Parameters**

| Name | Type | | Description |
|---|---|---|---|
| `weight_kg` | number | required | Weight in kilograms. |
| `height_cm` | number | required | Height in centimetres. |
| `age_years` | integer | required | Age in whole years. |
| `sex` | string | required | `male` or `female` — sets the BMR formula's constant and which AKG group's targets apply. |
| `activity` | number | optional | 1.2 sedentary to 1.9 athlete — the standard multipliers. |

**Example request**

```bash
curl https://api.diraz.ae/v1/health/body-metrics \
  -H "Authorization: Bearer drz_live_…"
```

**Example response**

```json
{
  "data": {
    "bmi": 23.1,
    "bmi_category": "normal",
    "bmr_kcal": 1653,
    "activity": 1.2,
    "tdee_kcal": 1984,
    "akg": {
      "age_group": "19 - 29 tahun",
      "energy_kcal": 2650,
      "protein_g": 65,
      "fat_g": 75,
      "carbohydrate_g": 430,
      "water_ml": 2500
    }
  },
  "meta": { "request_id": "req_7Q2fK4mZ" }
}
```