Body Mass Index (BMI) is a simple calculation using height and weight. Health Canada classifies adults (18+) into the following categories. BMI = weight (kg) / height² (m).
| Category | BMI range (kg/m²) | Risk of developing health problems |
|---|---|---|
| Underweight | < 18.5 | Increased |
| Normal weight | 18.5 – 24.9 | Least |
| Overweight | 25.0 – 29.9 | Increased |
| Obese class I | 30.0 – 34.9 | High |
| Obese class II | 35.0 – 39.9 | Very high |
| Obese class III | ≥ 40.0 | Extremely high |
Note: BMI may not be accurate for athletes, older adults, or certain ethnic groups. Waist circumference is also a useful measure: < 102 cm for men, < 88 cm for women is generally associated with lower risk.
Health Canada promotes healthy eating through these core principles:
Recommended daily servings are individualized; use Canada’s Food Guide plate model as a visual guide (¼ protein, ¼ whole grains, ½ vegetables/fruits).
Staying healthy means regular check‑ups and age‑appropriate screenings. The Canadian Task Force on Preventive Health Care suggests:
Physical activity: at least 150 minutes of moderate‑to‑vigorous activity per week, plus muscle strengthening twice a week (Canadian 24‑Hour Movement Guidelines).
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