How to calculate Correct Food Portion for Weight Loss?

Correct food portion is the key to a portion control diet. Specific portion size for food items are recommended by expert dieticians and nutritionists as per a person’s age, weight, build, gender, and related health conditions. A certain amount, either in grams or quantity comes under each portion of a food group. For example, 1 slice of brown bread equals 1 portion of carbs. Usually, people recommend 6-8 portions of carbs for a day. 

We can measure the food portions of our meals by reading the food labels of the ingredients used. They list the concentration of food groups added to the specific ingredient. Therefore, we can calculate the amount used to prepare the meal and divide it by the number of servings. The calculation of proper food portions may be tedious in the beginning when following this lifestyle. However, with time we can get used to it and can easily prepare meals according to prescribed portions. 

The amount of calories and food portions consumed varies mostly between male and female groups. The suggested portion amount and calories for each gender are explained below. 

Food Portion for males

An average male adult with moderate activity throughout the day requires 2500 – 2800 calories per day to stay healthy and fit. They should consume food in the portions stated below. 

  • Carbohydrates: 7- 8 portions per day. 2-3 portions of carbs can be taken for each meal.
  • Proteins: 3 portions per day. 1 portion of protein can be taken for each meal.
  • Fats: 2-3 portions per day. Minimal fat should be consumed in each meal.
  • Dairy: 3 portions per day. Milk, yogurt, cheese, and other dairy products can be taken per meal or for a snack to fulfill the daily need.
  • Fruits: 2 – 3 portions per day.
  • Nuts: 2 – 3 portions per day.
  • Vegetables: Unlimited. 

Food Portion for females

An average female adult with moderate activity throughout the day requires 1800 – 2200 calories per day to stay healthy and fit. They should consume food in the portions stated below. 

  • Carbohydrates: 4- 6 portions per day. 1-2 portions of carbs can be taken for each meal.
  • Proteins: 2- 3 portions per day. 1 portion of protein can be taken for each meal.
  • Fats: 2-3 portions per day. Minimal fat should be consumed in each meal.
  • Dairy: 3 portions per day. Milk, yogurt, cheese, and other dairy products can be taken per meal or for a snack to fulfil the daily need.
  • Fruits: 2 – 3 portions per day.
  • Nuts: 2 – 3 portions per day.
  • Vegetables: Unlimited. 

The portions sizes of males and females vary more for the carbs group. Since men need more energy they require more carbs and protein as compared to females. Other variations in portions are for lactating women, people with diabetes, and other health-related illnesses. They can refer to a nutritionist and get specialized portion sizes and meal plans as per their body needs.

Portion of Food Items

To ensure that we are eating in the correct portion, some basic knowledge of the portion size of our staple food items is necessary. The table below shows the amount and associated portion count of some basic food items. 

Food Item

Food Group

Quantity

Comments

FlourCarbohydrates2.5 tablespoon / 25gWhole wheat four is most preferred
Arabic / Pita BreadCarbohydratesHalf bread / 40g 
Brown / Whole wheat / white breadCarbohydrates1 slice 
Flat bread / pancake / waffleCarbohydrates1 piece (CD size)No sugar, use honey or another low calorie sweeteners
PastaCarbohydrates½ cup (1 baseball size)Whole wheat pasta is preferable
Oats (Uncooked)Carbohydrates3 tbsp / 20g 
Quinoa (Uncooked)Carbohydrates2.5 tbsp / 25g 
Rice (cooked)Carbohydrates6 tbsp 
Corn flourCarbohydrates1 tbsp 
EggProtein2Recommended daily for breakfast
Cooked ChickenProteinPalm size / 70g 
Cooked MeatProteinPalm size / 70g 
White FishProteinPalm size / 70g 
Lentils / chickpeas (Cooked)Protein140g 
OilFat1 tsp 
Butter / MargarineFat1 tsp 
Peanut ButterFat1 tsp 
MayonnaiseFat1 tsp2 tsp for low-fat mayonnaise
CreamFat2 tsp 
Coconut flourFat2 tsp 
Low fat milkDairy200ml 
Low fat yogurtDairy4 – 6 tbsp 
Low fat cheese sliceDairy1 slice 
Nut milk (almond, rice, soya, coconut)Dairy200ml 
Almonds, walnuts, peanutsNuts3 – 4 pieces 
Chia, flax, sunflowerSeeds1 tbsp a day 
Fresh fruits (apple, banana, orange, mango)Fruit80g / 1 piece 
Dates, apricot, figFruit2 – 3 
AvocadoFruithalf