Nutrient Requirement Calculator


The daily nutrient requirements calculator provides the amounts of all the macronutrients (carbohydrates, protein and fat) that need to be consumed on a daily basis, given certain constraints. The default calories on the calculator is 2000 per day - you can change this to suit your particular requirements.

Simply enter the amount of calories you want to consume each day, select the diet ratio type (normal diet, low fat and low carbohydrate diet), adjust the carbohydrate, protein and fat percentages and select how many meals per day you want to eat.

Carbohydrate, Fat, Protein Calculator
Calories:  per day
Common Diet Ratios: 
Carbohydrate: %
Protein: %
Fat: %
Meals per day: Three Four Five Six
Results - Amount of Nutrients Required
  Carbohydrate Protein Fat
Grams per day
Grams per meal
Calories per day
Calories per meal
the daily nutrient requirements calculator provides the amounts of all the macronutrients (carbohydrates, protein and fat) that need to be consumed on a daily basis

Explanation of the Results

Common Diet Ratios
The diet ratios display various percentages of carbohydrates, protein and fat based on the different diet types below:

  • Moderate - this is the average diet type recommended by nutritionists, which consists of: 50% cabs, 25% protein, 25% fats
  • Moderate II - this is a simple variation of the moderate diet (with a slightly lower fat percentage), which consists of: 55% carbs, 25% protein, 20% fat
  • Zone Diet - this is the special diet which is lower in carbohydrates than the generally recommended diet, it consists of: 40% carbs, 30% protein, 30% fats
  • Low Fat - this is another special diet, which is a lot higher in carbohydrates, but lower in fat than the generally recommended diet and it consists of: 60% carbs, 25% protein, 15% fat
  • Low Carb - this is another special diet which is much lower in carbohydrates and higher in protein and fat than the generally recommended diet and it consists of: 25% carbs, 40% protein, 35% fats
  • Very Low Carb (Ketogenic) - this is a very special diet, which needs to be monitored by a health professional. Do not try this diet on your own as it can have serious health consequences! This diet is a great deal lower in carbohydrates, as well as being higher in protein and fat than the generally recommended diet and it consists of: 25% carbs, 40% protein, 35% fats

Number of Meals Per Day
You can choose three and up to six meals a day. The recommended number of meals is between 3-5 small to medium meals per day, to ensure blood sugar levels remain constant.

Results
The results display the amounts of the macronutrients (carbohydrates, fats, protein) you need to have each day based on your calorie intake per day, the number of meals you want to eat each day and the diet type (with specific nutrient rations), in both grams and calories.

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