How to Calculate Macros in a Recipe

How to Calculate Macros in a Recipe: A Comprehensive Guide & Calculator :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –card-background: #fff; –shadow: 0 2px 5px rgba(0,0,0,0.1); } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); line-height: 1.6; margin: 0; padding: 0; } .container { max-width: 1000px; margin: 20px auto; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } header { background-color: var(–primary-color); color: white; padding: 20px 0; text-align: center; margin-bottom: 20px; border-radius: 8px 8px 0 0; } header h1 { margin: 0; font-size: 2.5em; } h2, h3 { color: var(–primary-color); margin-top: 1.5em; margin-bottom: 0.5em; } .calculator-section { background-color: var(–card-background); padding: 30px; border-radius: 8px; box-shadow: var(–shadow); margin-bottom: 30px; } .loan-calc-container { display: flex; flex-direction: column; gap: 20px; } .input-group { display: flex; flex-direction: column; gap: 8px; } .input-group label { font-weight: bold; color: var(–primary-color); } .input-group input[type="number"], .input-group input[type="text"], .input-group select { padding: 12px; border: 1px solid var(–border-color); border-radius: 4px; font-size: 1em; width: 100%; box-sizing: border-box; } .input-group input[type="number"]:focus, .input-group input[type="text"]:focus, .input-group select:focus { outline: none; border-color: var(–primary-color); box-shadow: 0 0 0 2px rgba(0, 74, 153, 0.2); } .input-group .helper-text { font-size: 0.85em; color: #666; } .error-message { color: red; font-size: 0.8em; margin-top: 5px; min-height: 1.2em; /* Prevent layout shifts */ } .button-group { display: flex; gap: 15px; margin-top: 25px; flex-wrap: wrap; } .btn { padding: 12px 25px; border: none; border-radius: 5px; cursor: pointer; font-size: 1em; font-weight: bold; transition: background-color 0.3s ease; text-transform: uppercase; } .btn-primary { background-color: var(–primary-color); color: white; } .btn-primary:hover { background-color: #003366; } .btn-secondary { background-color: #6c757d; color: white; } .btn-secondary:hover { background-color: #5a6268; } .btn-success { background-color: var(–success-color); color: white; } .btn-success:hover { background-color: #218838; } #results { margin-top: 30px; padding: 25px; background-color: var(–primary-color); color: white; border-radius: 8px; text-align: center; box-shadow: var(–shadow); } #results h3 { color: white; margin-top: 0; font-size: 1.8em; } .main-result { font-size: 2.5em; font-weight: bold; margin: 15px 0; display: block; } .intermediate-results div { margin-bottom: 10px; font-size: 1.1em; } .intermediate-results span { font-weight: bold; } .formula-explanation { font-size: 0.9em; color: rgba(255, 255, 255, 0.8); margin-top: 15px; } table { width: 100%; border-collapse: collapse; margin-top: 20px; margin-bottom: 30px; box-shadow: var(–shadow); } th, td { padding: 12px 15px; text-align: left; border: 1px solid var(–border-color); } thead { background-color: var(–primary-color); color: white; } tbody tr:nth-child(even) { background-color: #e9ecef; } caption { font-size: 1.1em; font-weight: bold; color: var(–primary-color); margin-bottom: 10px; text-align: left; } canvas { display: block; margin: 20px auto; background-color: white; border-radius: 4px; box-shadow: var(–shadow); } .article-content { background-color: var(–card-background); padding: 30px; border-radius: 8px; box-shadow: var(–shadow); margin-top: 30px; } .article-content p, .article-content ul, .article-content ol { margin-bottom: 1.5em; } .article-content li { margin-bottom: 0.8em; } .article-content a { color: var(–primary-color); text-decoration: none; } .article-content a:hover { text-decoration: underline; } .faq-item { margin-bottom: 15px; padding: 15px; background-color: #f1f3f5; border-left: 4px solid var(–primary-color); border-radius: 4px; } .faq-item strong { color: var(–primary-color); display: block; margin-bottom: 5px; } .related-links ul { list-style: none; padding: 0; } .related-links li { margin-bottom: 10px; } .related-links a { font-weight: bold; } .related-links span { font-size: 0.9em; color: #555; display: block; margin-top: 3px; } @media (min-width: 768px) { .container { padding: 30px; } .button-group { justify-content: flex-start; } }

How to Calculate Macros in a Recipe

Your Essential Guide to Nutritional Breakdown

Recipe Macro Calculator

Enter the name of your recipe.
Enter the total weight of the finished recipe in grams.
Enter the total grams of protein in the entire recipe.
Enter the total grams of carbohydrates in the entire recipe.
Enter the total grams of fat in the entire recipe.
Enter how many servings the recipe yields.

Macros per serving are calculated by dividing the total grams of each macronutrient (Protein, Carbs, Fat) by the number of servings. Calories are calculated using standard values: Protein (4 kcal/g), Carbs (4 kcal/g), Fat (9 kcal/g). Weight per serving is total weight divided by servings.

Recipe Macro Breakdown

Nutrient Total Recipe (grams) Per Serving (grams) % of Daily Value (per serving, based on 2000 kcal diet)
Protein
Carbohydrates
Fat
Calories
Weight N/A
Detailed nutritional breakdown for the recipe.

Macro Distribution Chart

Visual representation of macronutrient distribution per serving.

Understanding How to Calculate Macros in a Recipe

What is How to Calculate Macros in a Recipe?

Calculating macros in a recipe refers to the process of determining the total amount of protein, carbohydrates, and fats present in a dish, and then often breaking that down per serving. Macronutrients, or "macros," are the essential nutrients your body needs in large amounts to provide energy and support various bodily functions. Understanding these values is crucial for anyone following a specific diet, managing their weight, optimizing athletic performance, or simply aiming for a more balanced nutritional intake. This calculation allows you to accurately track your dietary intake, ensuring your meals align with your health goals, whether they involve bulking up, cutting fat, or maintaining a specific macronutrient ratio.

Who should use it?

Anyone interested in precise nutritional tracking should learn how to calculate macros in a recipe. This includes:

  • Bodybuilders and athletes aiming for specific muscle gain or fat loss targets.
  • Individuals managing chronic conditions like diabetes, where carbohydrate intake is critical.
  • People following popular diets such as ketogenic, low-carb, high-protein, or balanced macro diets.
  • Home cooks who want to understand the nutritional profile of the meals they prepare.
  • Nutritionists and dietitians guiding clients on dietary planning.

Common Misconceptions

  • "All calories are equal": While a calorie is a unit of energy, the source matters. 100 calories from protein have different effects on satiety, muscle repair, and hormonal response than 100 calories from refined sugar.
  • "Macros are only for weight loss/gain": Macros are fundamental for overall health, energy levels, and bodily repair, regardless of weight goals.
  • "Calculating macros is too complicated": With the right tools and understanding, it's a straightforward process, especially with calculators like the one provided.

How to Calculate Macros in a Recipe: Formula and Mathematical Explanation

The core principle behind how to calculate macros in a recipe is straightforward: sum up the macronutrients from each ingredient and then divide by the number of servings. Here's a step-by-step breakdown:

  1. Ingredient Analysis: For each ingredient in your recipe, find its nutritional information (protein, carbs, fat) per unit of measurement (e.g., per 100g, per cup, per item). This data is typically found on food packaging, reputable online nutrition databases, or through specific food tracking apps.
  2. Quantity Conversion: Ensure all ingredient quantities are converted to a consistent unit, preferably grams, for easier calculation.
  3. Total Macronutrient Calculation: Multiply the amount of each ingredient (in grams) by its respective macronutrient content per gram. Sum these values for each macronutrient across all ingredients to get the total grams of protein, carbohydrates, and fats for the entire recipe.
  4. Serving Size Determination: Decide how many servings your recipe yields. You can do this by dividing the total weight of the recipe by a desired serving weight, or simply by the number of portions you typically make.
  5. Per-Serving Calculation: Divide the total grams of each macronutrient (protein, carbs, fat) by the total number of servings.
  6. Calorie Calculation (Optional but Recommended): Use the standard caloric values per gram:
    • Protein: 4 kcal/gram
    • Carbohydrates: 4 kcal/gram
    • Fat: 9 kcal/gram
    Multiply the grams of each macro per serving by its caloric value and sum them to find the total calories per serving.

Variables and Formula Summary:

Variable Meaning Unit Typical Range
Ptotal Total Protein in Recipe grams (g) 0g – 1000g+
Ctotal Total Carbohydrates in Recipe grams (g) 0g – 1000g+
Ftotal Total Fat in Recipe grams (g) 0g – 500g+
Wtotal Total Weight of Recipe grams (g) 100g – 5000g+
S Number of Servings count 1 – 20+
Pserving Protein per Serving grams (g) Ptotal / S
Cserving Carbohydrates per Serving grams (g) Ctotal / S
Fserving Fat per Serving grams (g) Ftotal / S
Calserving Calories per Serving kilocalories (kcal) (Pserving * 4) + (Cserving * 4) + (Fserving * 9)
Wserving Weight per Serving grams (g) Wtotal / S

Practical Examples (Real-World Use Cases)

Example 1: Simple Omelette

Let's calculate macros for a basic two-egg omelette with a tablespoon of cheese.

  • Ingredients:
    • 2 Large Eggs: Approx. 100g total (Protein: 12g, Carbs: 1g, Fat: 10g)
    • 1 tbsp Cheddar Cheese: Approx. 10g (Protein: 2g, Carbs: 0.5g, Fat: 3g)
  • Totals:
    • Total Weight: 110g
    • Total Protein: 12g + 2g = 14g
    • Total Carbs: 1g + 0.5g = 1.5g
    • Total Fat: 10g + 3g = 13g
  • Servings: 1
  • Calculations:
    • Protein per Serving: 14g / 1 = 14g
    • Carbs per Serving: 1.5g / 1 = 1.5g
    • Fat per Serving: 13g / 1 = 13g
    • Calories per Serving: (14g * 4) + (1.5g * 4) + (13g * 9) = 56 + 6 + 117 = 179 kcal
    • Weight per Serving: 110g / 1 = 110g
  • Interpretation: This omelette is high in protein and fat, with very few carbohydrates, fitting well into low-carb or ketogenic meal plans.

Example 2: Lentil Soup (Batch Cooking)

Calculating macros for a larger batch recipe like lentil soup is where a calculator becomes invaluable.

  • Recipe Inputs (Totals):
    • Total Weight: 2500g
    • Total Protein: 100g
    • Total Carbs: 350g
    • Total Fat: 40g
  • Servings: 5
  • Calculator Output (Per Serving):
    • Protein: 20g
    • Carbs: 70g
    • Fat: 8g
    • Calories: (20*4) + (70*4) + (8*9) = 80 + 280 + 72 = 432 kcal
    • Weight: 500g
  • Interpretation: This lentil soup provides a substantial amount of carbohydrates, primarily from the lentils and vegetables, along with a good protein contribution. It's a balanced, energy-dense meal suitable for vegetarians or vegans looking for complex carbs and plant-based protein.

How to Use This How to Calculate Macros in a Recipe Calculator

Our calculator simplifies the process of how to calculate macros in a recipe. Follow these steps:

  1. Enter Recipe Name: Give your recipe a clear name for easy identification.
  2. Input Total Recipe Weight: Weigh your finished dish in grams.
  3. Input Total Macronutrients: Accurately enter the total grams of protein, carbohydrates, and fat for the entire recipe. You'll need to sum these values from all your ingredients.
  4. Enter Number of Servings: Specify how many portions the recipe yields.
  5. Click 'Calculate Macros': The calculator will instantly display the macros (protein, carbs, fat), calories, and weight per serving.
  6. Review Results: Check the primary result (macros per serving) and the intermediate values for a detailed breakdown. The table and chart offer further visual and detailed insights.
  7. Decision Making: Use the results to see if the recipe fits your daily macro targets. Adjust portion sizes or recipe ingredients if needed. For instance, if a recipe is too high in carbs, you might reduce the amount of rice or potatoes and increase lean protein sources.
  8. Reset: Use the 'Reset' button to clear the fields and start a new calculation.
  9. Copy Results: Use the 'Copy Results' button to easily transfer the key nutritional information for logging or sharing.

Key Factors That Affect How to Calculate Macros in a Recipe Results

Several factors can influence the accuracy and interpretation of your macro calculations:

  1. Ingredient Variability: The nutritional content of raw ingredients can vary based on brand, ripeness, cut (for meats), and growing conditions. Always use the most accurate data available for your specific ingredients.
  2. Cooking Methods: Frying adds fat, boiling can leach some water-soluble nutrients, and roasting can cause moisture loss, concentrating macros. Account for these changes where possible, though precise measurement is often difficult.
  3. Added Ingredients During Cooking: Don't forget to account for oils, sauces, spices, and other additions used during the cooking process, as these contribute to the overall macro count.
  4. Portion Size Accuracy: If you divide the recipe unevenly, your per-serving macros will be inaccurate. Weighing each serving provides the most precise measurement.
  5. Database Accuracy: Rely on reputable nutrition databases (like the USDA FoodData Central) or accurate food labels. Generic entries can sometimes be misleading.
  6. Moisture Loss/Gain: During cooking, food loses water, concentrating nutrients and macros per gram. Conversely, some foods absorb water. This is why using the final weight is important for accurate per-serving calculations.
  7. Fiber Content: While listed under carbohydrates, some dietary fiber is not fully digestible and may impact net carb counts differently for certain diets (e.g., keto).
  8. Sugar Alcohols: These are often found in low-carb products and are sometimes subtracted from total carbs. Their caloric impact can also vary.

Frequently Asked Questions (FAQ)

Q1: How do I find the nutritional information for ingredients?

A: Check the nutrition labels on packaged foods. For fresh produce, meats, and bulk items, use reliable online databases like the USDA FoodData Central, MyFitnessPal, or Cronometer.

Q2: What if I don't know the exact weight of my recipe?

A: Use a kitchen scale to weigh the final dish. If that's not possible, estimate based on standard yields or the volume of your cooking pot, but be aware this reduces accuracy.

Q3: Do I need to calculate macros for every single spice?

A: For small amounts of herbs and spices (like salt, pepper, dried herbs), their contribution to macros is usually negligible. Focus on ingredients that make up a significant portion of the recipe's weight or nutritional content.

Q4: How accurate do my calculations need to be?

A: This depends on your goals. For general health, approximate accuracy is fine. For competitive athletes or those with strict medical dietary needs, precision is key. Use the most accurate data and measurement tools available.

Q5: What are "net carbs"?

A: Net carbs are typically calculated as Total Carbohydrates minus Fiber minus Sugar Alcohols (if applicable). Some diets focus on net carbs rather than total carbs.

Q6: Can I calculate macros for recipes with mixed ingredients like casseroles?

A: Yes, the process remains the same. You must sum the macros from *all* components (pasta, sauce, meat, cheese, vegetables) before dividing by the number of servings.

Q7: What if my recipe includes ingredients with unknown nutritional values?

A: Try to find the closest available match in a nutrition database. If it's a homemade sauce or blend, calculate its macros separately first. For completely unknown items, you might have to make an educated guess or exclude them if the quantity is small.

Q8: How do I handle ingredients that shrink or expand during cooking?

A: It's best to calculate macros based on the *raw* ingredient weights and nutritional values, then sum them up. The final weight of the cooked dish is primarily used to determine the serving size weight, not to recalculate the total macros themselves.

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var recipeNameInput = document.getElementById('recipeName'); var totalWeightGramsInput = document.getElementById('totalWeightGrams'); var totalProteinGramsInput = document.getElementById('totalProteinGrams'); var totalCarbsGramsInput = document.getElementById('totalCarbsGrams'); var totalFatGramsInput = document.getElementById('totalFatGrams'); var servingsInput = document.getElementById('servings'); var resultsDiv = document.getElementById('results'); var resultRecipeNameSpan = document.getElementById('resultRecipeName'); var macrosPerServingSpan = document.getElementById('macrosPerServing'); var proteinPerServingDiv = document.getElementById('proteinPerServing'); var carbsPerServingDiv = document.getElementById('carbsPerServing'); var fatPerServingDiv = document.getElementById('fatPerServing'); var caloriesPerServingDiv = document.getElementById('caloriesPerServing'); var weightPerServingDiv = document.getElementById('weightPerServing'); var macroTableSection = document.getElementById('macroTableSection'); var macroChartSection = document.getElementById('macroChartSection'); var totalProteinTableTd = document.getElementById('totalProteinTable'); var totalCarbsTableTd = document.getElementById('totalCarbsTable'); var totalFatTableTd = document.getElementById('totalFatTable'); var totalCaloriesTableTd = document.getElementById('totalCaloriesTable'); var totalWeightTableTd = document.getElementById('totalWeightTable'); var proteinPerServingTableTd = document.getElementById('proteinPerServingTable'); var carbsPerServingTableTd = document.getElementById('carbsPerServingTable'); var fatPerServingTableTd = document.getElementById('fatPerServingTable'); var caloriesPerServingTableTd = document.getElementById('caloriesPerServingTable'); var weightPerServingTableTd = document.getElementById('weightPerServingTable'); var proteinDVTableTd = document.getElementById('proteinDVTable'); var carbsDVTableTd = document.getElementById('carbsDVTable'); var fatDVTableTd = document.getElementById('fatDVTable'); var caloriesDVTableTd = document.getElementById('caloriesDVTable'); var macroPieChartCanvas = document.getElementById('macroPieChart'); var macroPieChartInstance = null; var proteinKcalPerGram = 4; var carbsKcalPerGram = 4; var fatKcalPerGram = 9; var dailyCalorieTarget = 2000; // Standard reference for DV calculation function validateInput(inputId, errorId, minValue, maxValue) { var input = document.getElementById(inputId); var errorDiv = document.getElementById(errorId); var value = parseFloat(input.value); errorDiv.textContent = "; // Clear previous error if (isNaN(value)) { errorDiv.textContent = 'Please enter a valid number.'; return false; } if (value < 0) { errorDiv.textContent = 'Value cannot be negative.'; return false; } if (minValue !== undefined && value maxValue) { errorDiv.textContent = 'Value cannot exceed ' + maxValue + '.'; return false; } return true; } function calculateMacros() { // Clear previous errors document.getElementById('recipeNameError').textContent = "; document.getElementById('totalWeightGramsError').textContent = "; document.getElementById('totalProteinGramsError').textContent = "; document.getElementById('totalCarbsGramsError').textContent = "; document.getElementById('totalFatGramsError').textContent = "; document.getElementById('servingsError').textContent = "; // Validate inputs var isValid = true; isValid = validateInput('recipeName', 'recipeNameError') && isValid; isValid = validateInput('totalWeightGrams', 'totalWeightGramsError', 0) && isValid; isValid = validateInput('totalProteinGrams', 'totalProteinGramsError', 0) && isValid; isValid = validateInput('totalCarbsGrams', 'totalCarbsGramsError', 0) && isValid; isValid = validateInput('totalFatGrams', 'totalFatGramsError', 0) && isValid; isValid = validateInput('servings', 'servingsError', 1) && isValid; // Servings must be at least 1 if (!isValid) { resultsDiv.style.display = 'none'; macroTableSection.style.display = 'none'; macroChartSection.style.display = 'none'; return; } var recipeName = recipeNameInput.value; var totalWeightGrams = parseFloat(totalWeightGramsInput.value); var totalProteinGrams = parseFloat(totalProteinGramsInput.value); var totalCarbsGrams = parseFloat(totalCarbsGramsInput.value); var totalFatGrams = parseFloat(totalFatGramsInput.value); var servings = parseFloat(servingsInput.value); var proteinPerServing = totalProteinGrams / servings; var carbsPerServing = totalCarbsGrams / servings; var fatPerServing = totalFatGrams / servings; var weightPerServing = totalWeightGrams / servings; var totalCalories = (totalProteinGrams * proteinKcalPerGram) + (totalCarbsGrams * carbsKcalPerGram) + (totalFatGrams * fatKcalPerGram); var caloriesPerServing = totalCalories / servings; // Update results display resultRecipeNameSpan.textContent = recipeName + " – Per Serving"; macrosPerServingSpan.textContent = proteinPerServing.toFixed(1) + "g Protein / " + carbsPerServing.toFixed(1) + "g Carbs / " + fatPerServing.toFixed(1) + "g Fat"; proteinPerServingDiv.innerHTML = 'Protein: ' + proteinPerServing.toFixed(1) + 'g'; carbsPerServingDiv.innerHTML = 'Carbohydrates: ' + carbsPerServing.toFixed(1) + 'g'; fatPerServingDiv.innerHTML = 'Fat: ' + fatPerServing.toFixed(1) + 'g'; caloriesPerServingDiv.innerHTML = 'Calories: ' + caloriesPerServing.toFixed(0) + ' kcal'; weightPerServingDiv.innerHTML = 'Weight: ' + weightPerServing.toFixed(0) + 'g'; resultsDiv.style.display = 'block'; // Update table totalProteinTableTd.textContent = totalProteinGrams.toFixed(1); totalCarbsTableTd.textContent = totalCarbsGrams.toFixed(1); totalFatTableTd.textContent = totalFatGrams.toFixed(1); totalCaloriesTableTd.textContent = totalCalories.toFixed(0); totalWeightTableTd.textContent = totalWeightGrams.toFixed(0); proteinPerServingTableTd.textContent = proteinPerServing.toFixed(1); carbsPerServingTableTd.textContent = carbsPerServing.toFixed(1); fatPerServingTableTd.textContent = fatPerServing.toFixed(1); caloriesPerServingTableTd.textContent = caloriesPerServing.toFixed(0); weightPerServingTableTd.textContent = weightPerServing.toFixed(0); // Calculate % Daily Value (DV) – simplified for common targets var proteinDV = (proteinPerServing / 50) * 100; // Assuming 50g protein DV var carbsDV = (carbsPerServing / 275) * 100; // Assuming 275g carbs DV var fatDV = (fatPerServing / 78) * 100; // Assuming 78g fat DV (based on 30% fat calories) var caloriesDV = (caloriesPerServing / dailyCalorieTarget) * 100; proteinDVTableTd.textContent = proteinDV.toFixed(1) + '%'; carbsDVTableTd.textContent = carbsDV.toFixed(1) + '%'; fatDVTableTd.textContent = fatDV.toFixed(1) + '%'; caloriesDVTableTd.textContent = caloriesDV.toFixed(1) + '%'; macroTableSection.style.display = 'block'; // Update chart updateMacroChart(proteinPerServing, carbsPerServing, fatPerServing); macroChartSection.style.display = 'block'; } function updateMacroChart(protein, carbs, fat) { var ctx = macroPieChartCanvas.getContext('2d'); // Destroy previous chart instance if it exists if (macroPieChartInstance) { macroPieChartInstance.destroy(); } var totalMacros = protein + carbs + fat; var proteinPercent = (protein / totalMacros) * 100; var carbsPercent = (carbs / totalMacros) * 100; var fatPercent = (fat / totalMacros) * 100; macroPieChartInstance = new Chart(ctx, { type: 'pie', data: { labels: ['Protein', 'Carbohydrates', 'Fat'], datasets: [{ label: 'Macro Distribution (%)', data: [proteinPercent, carbsPercent, fatPercent], backgroundColor: [ 'rgba(255, 99, 132, 0.7)', // Protein – Reddish 'rgba(54, 162, 235, 0.7)', // Carbs – Blueish 'rgba(255, 206, 86, 0.7)' // Fat – Yellowish ], borderColor: [ 'rgba(255, 99, 132, 1)', 'rgba(54, 162, 235, 1)', 'rgba(255, 206, 86, 1)' ], borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: true, plugins: { legend: { position: 'top', }, title: { display: true, text: 'Macro Distribution Per Serving' } } } }); } function resetCalculator() { recipeNameInput.value = 'Example Chicken Stir-fry'; totalWeightGramsInput.value = '1200'; totalProteinGramsInput.value = '150'; totalCarbsGramsInput.value = '200'; totalFatGramsInput.value = '80'; servingsInput.value = '4'; // Clear errors document.getElementById('recipeNameError').textContent = "; document.getElementById('totalWeightGramsError').textContent = "; document.getElementById('totalProteinGramsError').textContent = "; document.getElementById('totalCarbsGramsError').textContent = "; document.getElementById('totalFatGramsError').textContent = "; document.getElementById('servingsError').textContent = "; resultsDiv.style.display = 'none'; macroTableSection.style.display = 'none'; macroChartSection.style.display = 'none'; } function copyResults() { var recipeName = document.getElementById('resultRecipeName').textContent; var macrosPerServing = document.getElementById('macrosPerServing').textContent; var proteinPerServing = document.getElementById('proteinPerServing').textContent; var carbsPerServing = document.getElementById('carbsPerServing').textContent; var fatPerServing = document.getElementById('fatPerServing').textContent; var caloriesPerServing = document.getElementById('caloriesPerServing').textContent; var weightPerServing = document.getElementById('weightPerServing').textContent; var tableProteinTotal = document.getElementById('totalProteinTable').textContent; var tableCarbsTotal = document.getElementById('totalCarbsTable').textContent; var tableFatTotal = document.getElementById('totalFatTable').textContent; var tableCaloriesTotal = document.getElementById('totalCaloriesTable').textContent; var tableWeightTotal = document.getElementById('totalWeightTable').textContent; var tableProteinServing = document.getElementById('proteinPerServingTable').textContent; var tableCarbsServing = document.getElementById('carbsPerServingTable').textContent; var tableFatServing = document.getElementById('fatPerServingTable').textContent; var tableCaloriesServing = document.getElementById('caloriesPerServingTable').textContent; var tableWeightServing = document.getElementById('weightPerServingTable').textContent; var copyText = "Recipe: " + recipeName + "\n\n"; copyText += "— Per Serving —\n"; copyText += macrosPerServing + "\n"; copyText += proteinPerServing + "\n"; copyText += carbsPerServing + "\n"; copyText += fatPerServing + "\n"; copyText += caloriesPerServing + "\n"; copyText += weightPerServing + "\n\n"; copyText += "— Total Recipe —\n"; copyText += "Protein: " + tableProteinTotal + "g\n"; copyText += "Carbs: " + tableCarbsTotal + "g\n"; copyText += "Fat: " + tableFatTotal + "g\n"; copyText += "Calories: " + tableCaloriesTotal + " kcal\n"; copyText += "Weight: " + tableWeightTotal + "g\n\n"; copyText += "— Key Assumptions —\n"; copyText += "Calculated based on " + servingsInput.value + " servings.\n"; copyText += "Standard calorie values used: Protein (4 kcal/g), Carbs (4 kcal/g), Fat (9 kcal/g).\n"; // Use a temporary textarea to copy text var textArea = document.createElement("textarea"); textArea.value = copyText; textArea.style.position = "fixed"; // Avoid scrolling to bottom of page in MS Edge. textArea.style.top = 0; textArea.style.left = 0; textArea.style.width = '2em'; textArea.style.height = '2em'; textArea.style.padding = '0'; textArea.style.border = 'none'; textArea.style.outline = 'none'; textArea.style.boxShadow = 'none'; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied!' : 'Copying failed!'; // Optionally show a temporary message to the user alert(msg); } catch (err) { alert('Oops, unable to copy. Please copy manually.'); } document.body.removeChild(textArea); } // Initial calculation on page load if inputs have default values document.addEventListener('DOMContentLoaded', function() { // Check if inputs have default values and trigger calculation if (document.getElementById('totalWeightGrams').value && document.getElementById('totalProteinGrams').value && document.getElementById('totalCarbsGrams').value && document.getElementById('totalFatGrams').value && document.getElementById('servings').value) { calculateMacros(); } });

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