Food Nutrition Calculator

Use this calculator to determine the total nutritional values for a specific food item based on its serving size and the quantity you consume. Simply enter the nutritional information per serving from a food label or database, specify the serving size, and how many servings you're eating.

Food Item Name (Optional):

Serving Size (grams or ml):

Number of Servings Consumed:

Calories per Serving (kcal):

Protein per Serving (g):

Carbohydrates per Serving (g):

Fat per Serving (g):

Fiber per Serving (g):

Sugar per Serving (g):

Sodium per Serving (mg):

Calculated Nutrition:

function calculateNutrition() { var foodName = document.getElementById('foodName').value; var servingSizeGrams = parseFloat(document.getElementById('servingSizeGrams').value); var servingsConsumed = parseFloat(document.getElementById('servingsConsumed').value); var caloriesPerServing = parseFloat(document.getElementById('caloriesPerServing').value); var proteinPerServing = parseFloat(document.getElementById('proteinPerServing').value); var carbsPerServing = parseFloat(document.getElementById('carbsPerServing').value); var fatPerServing = parseFloat(document.getElementById('fatPerServing').value); var fiberPerServing = parseFloat(document.getElementById('fiberPerServing').value); var sugarPerServing = parseFloat(document.getElementById('sugarPerServing').value); var sodiumPerServing = parseFloat(document.getElementById('sodiumPerServing').value); // Validate inputs if (isNaN(servingSizeGrams) || servingSizeGrams <= 0 || isNaN(servingsConsumed) || servingsConsumed <= 0 || isNaN(caloriesPerServing) || caloriesPerServing < 0 || isNaN(proteinPerServing) || proteinPerServing < 0 || isNaN(carbsPerServing) || carbsPerServing < 0 || isNaN(fatPerServing) || fatPerServing < 0 || isNaN(fiberPerServing) || fiberPerServing < 0 || isNaN(sugarPerServing) || sugarPerServing < 0 || isNaN(sodiumPerServing) || sodiumPerServing < 0) { document.getElementById('nutritionResult').innerHTML = '

Calculated Nutrition:

Please enter valid positive numbers for all nutritional values and quantities.'; return; } // Perform calculations var totalCalories = caloriesPerServing * servingsConsumed; var totalProtein = proteinPerServing * servingsConsumed; var totalCarbs = carbsPerServing * servingsConsumed; var totalFat = fatPerServing * servingsConsumed; var totalFiber = fiberPerServing * servingsConsumed; var totalSugar = sugarPerServing * servingsConsumed; var totalSodium = sodiumPerServing * servingsConsumed; // Display results document.getElementById('resultFoodName').innerHTML = foodName ? 'Food Item: ' + foodName : "; document.getElementById('resultCalories').innerHTML = 'Total Calories: ' + totalCalories.toFixed(1) + ' kcal'; document.getElementById('resultProtein').innerHTML = 'Total Protein: ' + totalProtein.toFixed(1) + ' g'; document.getElementById('resultCarbs').innerHTML = 'Total Carbohydrates: ' + totalCarbs.toFixed(1) + ' g'; document.getElementById('resultFat').innerHTML = 'Total Fat: ' + totalFat.toFixed(1) + ' g'; document.getElementById('resultFiber').innerHTML = 'Total Fiber: ' + totalFiber.toFixed(1) + ' g'; document.getElementById('resultSugar').innerHTML = 'Total Sugar: ' + totalSugar.toFixed(1) + ' g'; document.getElementById('resultSodium').innerHTML = 'Total Sodium: ' + totalSodium.toFixed(1) + ' mg'; }

Understanding Your Food Nutrition

Tracking your food nutrition is a fundamental step towards achieving various health and fitness goals, whether it's weight management, muscle gain, or simply maintaining a balanced diet. This calculator helps you quickly assess the nutritional impact of the food you consume.

Why is Nutrition Tracking Important?

Weight Management: Understanding calorie intake is crucial for losing, gaining, or maintaining weight.
Balanced Diet: Ensures you're getting adequate macronutrients (protein, carbs, fat) and micronutrients (vitamins, minerals).
Dietary Restrictions: Helps individuals with allergies, intolerances, or specific dietary needs (e.g., low sodium, high fiber) monitor their intake.
Performance: Athletes and active individuals can optimize their nutrition for better energy levels and recovery.
Health Conditions: Essential for managing conditions like diabetes (carbohydrate counting) or hypertension (sodium monitoring).

How to Use This Calculator Effectively:

Find Nutritional Information: Look at the "Nutrition Facts" label on packaged foods. For fresh produce or restaurant meals, reliable online databases (like USDA FoodData Central) are excellent resources.
Identify Serving Size: The label will specify a standard serving size (e.g., "1 cup," "40g," "1 piece"). Enter this into the "Serving Size" field.
Input Per-Serving Values: Enter the Calories, Protein, Carbohydrates, Fat, Fiber, Sugar, and Sodium listed for that single serving into the respective fields.
Specify Servings Consumed: Accurately measure or estimate how many servings you are actually eating. For example, if a serving is 40g and you eat 60g, you've consumed 1.5 servings.
Calculate: Click the "Calculate Nutrition" button to see the total nutritional breakdown for your consumed portion.

Key Nutritional Components Explained:

Calories (kcal): A unit of energy. Your body needs calories for all its functions.
Protein (g): Essential for building and repairing tissues, making enzymes and hormones.
Carbohydrates (g): The body's primary source of energy. Includes sugars, starches, and fiber.
Fat (g): Important for energy storage, hormone production, and absorbing fat-soluble vitamins.
Fiber (g): A type of carbohydrate that aids digestion and helps regulate blood sugar.
Sugar (g): A simple carbohydrate that provides quick energy but can contribute to health issues in excess.
Sodium (mg): An electrolyte crucial for fluid balance and nerve function, but high intake can lead to high blood pressure.

Disclaimer: This calculator provides estimated nutritional values based on your inputs. It is not a substitute for professional medical or dietary advice. Always consult with a healthcare provider or registered dietitian for personalized nutrition plans and health concerns.