Question

How many calories should I eat a day?

When most of us think of calories, we think of
how fattening a food is. In dietary terms,
calories are the amount of energy that a food provides.

If we consistently take in more energy than we need, we will gain weight. If we take in too little energy, we will lose weight, fat, and eventually muscle mass.

The definition of a calorie is the amount of energy needed to raise the temperature of 1 gram (g) of water through 1º Celsius.

The type and amount of food we eat determine how many calories we consume. For many people on a weight-loss diet, the number of calories in a food is a deciding factor in choosing whether or not to eat it.

How and when we eat can also make a difference, as the body uses energy differently throughout the day. Our body’s energy use will depend on how active we are, how efficiently our body uses the energy, and our age.

According to the 2015-2020 Dietary Guidelines for Americans, women are likely to need between 1,600 and 2,400 calories a day, and men from 2,000 to 3,000. However, this depends on their age, size, height, lifestyle, overall health, and activity level.

O pronome this, em destaque no último parágrafo, refere-se a

A
Dietary Guidelines.

B
age, size, height, lifestyle, overall health, and activity level.

C
women and men.

D
the necessary daily amount of calories for women and for men.

E
our body’s energy.

Answer 1

Letra (D), The necessary daily amount of calories for women and for men.