Question 1

What is BMI?

Accepted Answer

BMI (Body Mass Index) is a measure of body fat based on height and weight. It is calculated by dividing weight in kilograms by height in meters squared. BMI is used as a screening tool to categorize weight status: underweight (below 18.5), normal weight (18.5-24.9), overweight (25-29.9), and obese (30 and above).

Question 2

How many calories should I eat per day?

Accepted Answer

Daily calorie needs vary based on age, gender, height, weight, and activity level. The Mifflin-St Jeor equation is considered the most accurate method for estimating calorie needs. On average, adult women need 1,600-2,400 calories per day and adult men need 2,000-3,000 calories per day. To lose weight, a deficit of 500 calories per day leads to about 1 pound of weight loss per week.

Question 3

What is a healthy BMI range?

Accepted Answer

A healthy BMI range is 18.5 to 24.9. This range is associated with the lowest risk of weight-related health problems. However, BMI does not account for muscle mass, bone density, or body composition, so it should be used alongside other health assessments.

Category	BMI Range
Underweight	Below 18.5
Normal weight	18.5 - 24.9
Overweight	25.0 - 29.9
Obese	30.0 and above

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