What are calories and how are they related to weight loss


A quick guide on how to use the following lists and tables:

If you are looking to maintain good general health, cross-reference the values in the calorie intake according to age and then according to the activity level of your life - sedentary, moderate or heavy.

If you are looking for a calorie allowance for weight loss, you should first decide and target the weight you want to achieve. 

Then refer to tables for men and women in terms of weight. For women, if your target weight between 50 and 60 kg - look for the respective values for 60 kilos.

 For men if you are looking to achieve weight between 80 and 90 kg, then look for the recommended calorie values for 80 kilos.

What are calories and how are they related to weight loss

            When you already know what is your advisable daily calorie allowance refer to the table of nutrient intake. Pay attention to the values in the "Daily Amount" column and look for the example below estimate for the daily nutrient intake of 2,000 calories.

 Replace this with the calorie range you had determined in the previous step, and you should be all set.

The daily calorie intake depends on age, gender, body weight, and physical activity.

Recommended daily calorie allowance for women and men in terms of weight:

50 kg1,500 Kcal
60 kg2,000 Kcal
70 kg2,500 Kcal

70 kg3,000 Kcal
80 kg3,500 Kcal
90 kg4,000 Kcal

In terms of physical activity:

Activity levelWomanMan
Sedentary1,875 Kcal2,425 Kcal
Moderate2,225 Kcal2,875 Kcal
Heavy2,925 Kcal3,800 Kcal

In terms of age:

Children1-3 years1,240 Kcal
4-6 years1,690 Kcal
7-9 years1,950 Kcal
Boys10-12 years2,190 Kcal
13-15 years2,450 Kcal
16-18 years2,640 Kcal
Girls10-12 years1,970 Kcal
13-15 years2,060 Kcal
16-18 years2,060 Kcal
       Adult Men2,500 Kcal
       Adult Women2,000 Kcal
       Pregnant Women+ 300 Kcal
     Lactating Women0-6 months+ 550 Kcal
6-12 months+ 400 Kcal

“+” indicates addition to the normal daily intake

Beyond 60 years of age, a decrease of 10% of the total calorie intake is made.


What are calories and how are they related to weight loss

Carbohydrates - 45-65 % of your daily nutrient intake should be obtained from carbohydrates.

 The main sources should be of complex carbohydrates, try to avoid simple carbohydrates as much as possible.
Proteins should take up 10-25% of your daily nutrient intake. You need 0.8 - 1g protein per kilogram of your ideal body weight. 

For example, if your weight is 65 kg, the daily intake is 52 - 65g. Don’t forget to include proteins from various sources.

Fat - 20-30% of the total calorie requirement should be from fats. 

It is recommended that saturated fats (found in animal fats) should not exceed 10% of your daily calorie intake.

What are calories and how are they related to weight loss

If you have a different daily calorie intake goal, you can make the calculations to determine your range of nutrients using the following coefficients:

1g of carbohydrates = 4 Kcal (17 Kj)
1g of fat = 9 Kcal (38 Kj)
1 Kcal = 4,1864 Kj

What are calories and how are they related to weight loss

For example on daily intake of 2,000 calories:

10% of protein = 2000 X 0.10 = 200 calories/4 = 50g
25% of protein = 2000 X 0.25 = 500 calories/4 = 125g
Range of protein per day = 50 - 125 grams

45% of carbohydrates = 2000 X 0.45 = 900 calories/4 = 225g
65% of carbohydrates = 2000 X 0.65 = 1300 calories/4 = 325g
Range of carbohydrates per day = 225-325 grams

20% of fat = 2000 X 0.20 = 400 calories/9 = 44.4g
30% of fat = 2000 X 0.30 = 600 calories/9 = 66.6g
Range of fat per day = 44-67 grams (rounded values)

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