Risposte rapide
Direct answers
- What is BMI?
- BMI (Body Mass Index) is the ratio of body weight in kilograms to height in meters squared: BMI = kg / m². It is the most widely used screening tool for underweight, normal weight, overweight and obesity. Developed by Adolphe Quetelet in the 19th century, it was formally adopted by the WHO as a clinical reference.
- What is a healthy BMI?
- WHO classification: below 18.5 = underweight, 18.5–24.9 = normal weight, 25–29.9 = overweight, 30+ = obese. The calculator uses the full 8-category breakdown: three grades of underweight (< 16, 16–17, 17–18.5), normal weight, overweight, and three obesity classes (I: 30–35, II: 35–40, III: 40+).
- Does BMI work for athletes and muscular people?
- BMI has known limitations: it cannot distinguish fat mass from muscle mass. A heavily muscled athlete may have a 'overweight' BMI while having very low body fat. For a more accurate assessment, use body fat percentage, waist-to-height ratio or DEXA scan. The calculator shows Deurenberg body fat % as a complementary indicator.
- How is pediatric BMI different from adult BMI?
- Children's BMI is interpreted using age- and sex-specific WHO growth percentiles, not fixed cutoff values. The same BMI of 20 means 'obese' for a 7-year-old girl but 'normal weight' for a 15-year-old boy. The calculator supports ages 2–18 with WHO 2007 reference curves.
- What is TDEE?
- TDEE (Total Daily Energy Expenditure) is the total calories you burn in a day, combining your Basal Metabolic Rate (BMR — calories at rest) with your activity level. The calculator uses both Mifflin-St Jeor (1990) and revised Harris-Benedict (1984) formulas and five activity multipliers for comparison.
- Is this relevant for Italian restaurant and HoReCa workers?
- Yes. Kitchen and service work is physically demanding — chefs and waitstaff are on their feet for 10–14 hours per shift. Understanding TDEE helps HoReCa workers manage their own nutrition around demanding schedules. Some Italian workplace health plans (piani di welfare aziendale) also include BMI monitoring.
Quick answers
Frequently Asked Questions
What is BMI?
BMI (Body Mass Index) is the ratio of body weight in kilograms to height in meters squared: BMI = kg / m². It is the most widely used screening tool for underweight, normal weight, overweight and obesity. Developed by Adolphe Quetelet in the 19th century, it was formally adopted by the WHO as a clinical reference.
What is a healthy BMI?
WHO classification: below 18.5 = underweight, 18.5–24.9 = normal weight, 25–29.9 = overweight, 30+ = obese. The calculator uses the full 8-category breakdown: three grades of underweight (< 16, 16–17, 17–18.5), normal weight, overweight, and three obesity classes (I: 30–35, II: 35–40, III: 40+).
Does BMI work for athletes and muscular people?
BMI has known limitations: it cannot distinguish fat mass from muscle mass. A heavily muscled athlete may have a 'overweight' BMI while having very low body fat. For a more accurate assessment, use body fat percentage, waist-to-height ratio or DEXA scan. The calculator shows Deurenberg body fat % as a complementary indicator.
How is pediatric BMI different from adult BMI?
Children's BMI is interpreted using age- and sex-specific WHO growth percentiles, not fixed cutoff values. The same BMI of 20 means 'obese' for a 7-year-old girl but 'normal weight' for a 15-year-old boy. The calculator supports ages 2–18 with WHO 2007 reference curves.
What is TDEE?
TDEE (Total Daily Energy Expenditure) is the total calories you burn in a day, combining your Basal Metabolic Rate (BMR — calories at rest) with your activity level. The calculator uses both Mifflin-St Jeor (1990) and revised Harris-Benedict (1984) formulas and five activity multipliers for comparison.
Is this relevant for Italian restaurant and HoReCa workers?
Yes. Kitchen and service work is physically demanding — chefs and waitstaff are on their feet for 10–14 hours per shift. Understanding TDEE helps HoReCa workers manage their own nutrition around demanding schedules. Some Italian workplace health plans (piani di welfare aziendale) also include BMI monitoring.