Calories needed to gain weight according to different age groups

Calories needed to gain weight according to different age groups

Number of calories needed estimated based on age*, gender and level of physical activity†
Sex

Sedentary

Active†

Young children (ages 2 to 6)

Boys

1000 to 1400

1000 to 1800

Girls

1000 to 1200

1000 to 1600

Older children and adolescents (ages 7 to 18)

Boys

1,400 to 2,400

1,600 to 3,200

Girls

1200 to 1800

1,600 to 2,400

Adults (ages 19 to 60)

Men

2,200 to 2,600

2,400 to 3,000

Women

1,600 to 2,000

1,800 to 2,400

Adults (aged 61 and over)

Men

2,000

2,200 to 2,600

Women

1,600

1,800 to 2,000

*The number of calories needed increases with age up to 20 years. After age 20, the number of calories needed begins to decrease.

† The more active a person is, the higher the number of calories needed.

How do you know if you need to gain weight?
Some people have a rather thin constitution by nature, but still do very well. That said, thinness or thinness can indicate a more or less serious health problem. So how do you know if you need to gain weight?

Calculate your BMI
The most common method is to calculate your body mass index (the famous BMI). This indicator allows you to assess body weight based on height. If your BMI is between 18.5 and 24.9 kg/m², your build is considered “normal”, so you have no reason to worry. But if your BMI is less than 18.5 kg/m², we consider that you are “underweight”, which can weaken you in many ways. However, this indicator should not be taken literally, particularly because it does not take body composition into account. It must be assessed differently depending on the age of the patients, their physical activity, their genetics, their overall health, their weight history, etc.