2018 Weight Watchers Points Calculator

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2018 Weight Watchers Points Calculator

Effortlessly track your 2018 Weight Watchers Points Plus and SmartPoints.

WW Points Calculator (2018 Formula)

Enter the weight of the food in grams.
Enter the total calories for the food portion.
Enter the grams of saturated fat for the food portion.
Enter the grams of sugar for the food portion.
Enter the milligrams of sodium for the food portion.
Enter the grams of protein for the food portion.

Your 2018 WW Points Calculation:

Calories Points:
Fat Points:
Sugar Points:
Sodium Points:
Protein Points:

Key Assumptions:

Weight (g):
Saturated Fat (g):
Sugar (g):
Sodium (mg):
Protein (g):
The 2018 WW SmartPoints formula considers calories, saturated fat, sugar, and sodium, with a bonus for protein.

What is the 2018 Weight Watchers Points Calculator?

The 2018 Weight Watchers Points Calculator is a tool designed to help individuals on the Weight Watchers (WW) program, specifically following the 2018 plan guidelines, determine the "SmartPoints" value of various foods. This system was an evolution of previous WW point systems, aiming to encourage healthier choices by assigning points based on a more comprehensive nutritional profile. Unlike earlier versions that might have focused more heavily on fat alone, the 2018 SmartPoints system incorporated factors like calories, saturated fat, sugar, and sodium, while also giving credit for protein.

Who Should Use It: Anyone actively following the Weight Watchers plan as it existed in 2018, or individuals who prefer this specific point calculation method for tracking their food intake. It's particularly useful for those who want a precise understanding of how their food choices align with the program's nutritional goals. This calculator is ideal for home users, nutritionists, or anyone curious about quantifying the nutritional impact of food according to a specific WW methodology.

Common Misconceptions: A common misconception is that all WW plans are the same. The 2018 SmartPoints system is distinct from previous "PointsPlus" and current "Simply Filling" or "PersonalPoints" systems. Another misconception is that lower points always mean healthier; while the system encourages nutrient-dense foods, the point value is a calculated outcome, not a direct health score. It's also sometimes thought that the calculator provides an exact nutritional breakdown, but it specifically quantifies the WW SmartPoints value based on its defined formula.

2018 Weight Watchers Points Calculator Formula and Mathematical Explanation

The 2018 Weight Watchers SmartPoints system uses a specific formula to assign a value to foods. This formula takes into account key nutritional components that WW identified as influential for weight management and overall health. The core idea is to nudge members towards foods that are lower in less desirable components (calories, saturated fat, sugar, sodium) and higher in beneficial components (protein).

The fundamental 2018 WW SmartPoints formula for a single serving is:

SmartPoints = (Calories / 30) + (Saturated Fat / 9) + (Sugar / 12) + (Sodium / 150) – (Protein / 5)

However, the final value is often rounded or capped. For the purpose of this calculator, we will compute the components separately and then sum them, and apply a floor of 0 points. Note that WW often uses specific serving sizes, and this calculator assumes inputs are for a defined serving.

Step-by-Step Calculation Breakdown:

  1. Calories Component: Divide the total calories by 30. This component reflects the energy density of the food.
  2. Saturated Fat Component: Divide the grams of saturated fat by 9. Saturated fat is prioritized due to its link with cardiovascular health.
  3. Sugar Component: Divide the grams of added sugar by 12. Higher sugar content increases the points.
  4. Sodium Component: Divide the milligrams of sodium by 150. Excess sodium can contribute to water retention and blood pressure issues.
  5. Protein Component: Divide the grams of protein by 5. Protein is beneficial for satiety and muscle maintenance, so it acts as a "discount" on the total points.
  6. Total Points: Sum the results from steps 1-4 and subtract the result from step 5.
  7. Final SmartPoints: The calculated total is then adjusted (often rounded or subject to program rules) and must be a non-negative value. This calculator displays the direct formula output, ensuring it's not below zero.

Variables Explained:

Variables Used in the 2018 WW SmartPoints Formula
Variable Meaning Unit Typical Range (per serving)
Calories Total energy content of the food serving. kcal 0 – 1000+
Saturated Fat Amount of saturated fatty acids in the food serving. grams (g) 0 – 50+
Sugar Amount of sugars (primarily added sugars) in the food serving. grams (g) 0 – 100+
Sodium Amount of sodium in the food serving. milligrams (mg) 0 – 2000+
Protein Amount of protein in the food serving. grams (g) 0 – 100+
SmartPoints The calculated value assigned to the food serving under the 2018 WW program. Points 0 – 50+

This detailed breakdown highlights how the 2018 Weight Watchers Points Calculator operationalizes the program's nutritional philosophy into a tangible point value.

Practical Examples (Real-World Use Cases)

Understanding the 2018 Weight Watchers Points Calculator is best done through practical examples. These scenarios illustrate how different foods are evaluated.

Example 1: A Healthy Salad Topping

Scenario: You're preparing a salad and want to add grilled chicken breast. You have a 120-gram portion.

Nutritional Information (per 120g portion):

  • Calories: 200 kcal
  • Saturated Fat: 2 g
  • Sugar: 0 g
  • Sodium: 150 mg
  • Protein: 35 g

Inputs for the 2018 Weight Watchers Points Calculator:

  • Weight of Food: 120 g
  • Calories: 200
  • Saturated Fat: 2
  • Sugar: 0
  • Sodium: 150
  • Protein: 35

Calculated Values:

  • Calories Points: 200 / 30 = 6.67
  • Fat Points: 2 / 9 = 0.22
  • Sugar Points: 0 / 12 = 0
  • Sodium Points: 150 / 150 = 1
  • Protein Points: 35 / 5 = 7

Total SmartPoints Calculation: (6.67 + 0.22 + 0 + 1) – 7 = 7.89 – 7 = 0.89

Result: Approximately 1 SmartPoint (often rounded up or to nearest whole number by WW). This demonstrates how lean protein sources are heavily favored in the 2018 WW system.

Example 2: A Processed Snack Bar

Scenario: You grab a popular granola bar as a quick snack. The bar weighs 40 grams.

Nutritional Information (per 40g bar):

  • Calories: 180 kcal
  • Saturated Fat: 3 g
  • Sugar: 15 g
  • Sodium: 120 mg
  • Protein: 3 g

Inputs for the 2018 Weight Watchers Points Calculator:

  • Weight of Food: 40 g
  • Calories: 180
  • Saturated Fat: 3
  • Sugar: 15
  • Sodium: 120
  • Protein: 3

Calculated Values:

  • Calories Points: 180 / 30 = 6
  • Fat Points: 3 / 9 = 0.33
  • Sugar Points: 15 / 12 = 1.25
  • Sodium Points: 120 / 150 = 0.8
  • Protein Points: 3 / 5 = 0.6

Total SmartPoints Calculation: (6 + 0.33 + 1.25 + 0.8) – 0.6 = 8.38 – 0.6 = 7.78

Result: Approximately 8 SmartPoints. This highlights how processed snacks, often high in sugar and refined carbohydrates (contributing to calories), can accumulate points quickly, even with moderate fat and sodium.

These examples showcase the 2018 Weight Watchers Points Calculator's ability to differentiate between foods, guiding users toward more beneficial choices.

How to Use This 2018 Weight Watchers Points Calculator

Using this calculator is straightforward. Follow these simple steps to determine the 2018 WW SmartPoints for your food.

Step-by-Step Instructions:

  1. Gather Nutritional Information: Find the nutritional facts for the specific food item and serving size you wish to calculate. This information is usually found on the product packaging or can be looked up online. Pay close attention to the serving size specified.
  2. Enter Food Weight: Input the weight of your food serving in grams into the "Weight of Food (grams)" field.
  3. Input Nutritional Data: Accurately enter the values for Calories (kcal), Saturated Fat (g), Sugar (g), Sodium (mg), and Protein (g) for that specific serving size into the respective fields.
  4. Calculate: Click the "Calculate Points" button.
  5. Review Results: The calculator will display the primary result: your calculated 2018 WW SmartPoints. It will also show the intermediate point values derived from each nutritional component (Calories, Fat, Sugar, Sodium, Protein) and the key nutritional values used in the calculation.
  6. Reset or Copy: If you need to calculate points for another food, click "Reset" to clear the fields and enter new data. To save or share your results, click "Copy Results."

How to Read Results:

  • Main Result: This is the final 2018 WW SmartPoints value for your food serving.
  • Intermediate Values: These show how each nutritional factor (calories, fat, sugar, sodium, protein) contributes to the total points. You can see which components are driving the point value higher (or lower, in the case of protein).
  • Key Assumptions: This section confirms the nutritional data you entered, ensuring accuracy.

Decision-Making Guidance:

Use the calculated points to make informed food choices throughout your day. Foods with lower SmartPoints values, especially those that derive their points from nutrient-dense sources rather than sugar and saturated fat, are generally encouraged by the 2018 WW program. Compare the points of different food options to help you stay within your daily budget and meet your health goals. Remember that the protein credit helps make protein-rich foods more point-friendly.

Key Factors That Affect 2018 WW Points Results

Several factors significantly influence the calculated 2018 Weight Watchers SmartPoints value of a food. Understanding these elements allows for a deeper appreciation of the WW system and better decision-making.

  1. Calorie Density: Foods high in calories relative to their weight or volume will contribute more points. This is why energy-dense foods like fried items or sugary treats tend to have higher point values. The formula assigns 1 point per 30 calories.
  2. Saturated Fat Content: Saturated fat is heavily penalized in the SmartPoints formula (1 point per 9g). This encourages choices lower in unhealthy fats and promotes heart health. Foods like fatty meats, butter, and full-fat dairy contribute significantly to points from this factor.
  3. Sugar Content: Added sugars are another major contributor to points (1 point per 12g). The 2018 WW plan specifically aimed to discourage high sugar intake, recognizing its link to weight gain and metabolic issues. This penalizes sweets, sugary drinks, and many processed foods.
  4. Sodium Levels: While less impactful per gram than fat or sugar, sodium still adds to the point total (1 point per 150mg). High sodium intake is associated with water retention and increased blood pressure, making it a factor WW sought to moderate. Processed foods, canned goods, and salty snacks are common sources.
  5. Protein Content: Protein acts as a "bonus" or discount in the formula (1 point per 5g subtracted). This rewards protein-rich foods like lean meats, fish, beans, and tofu, which are known for promoting satiety and preserving muscle mass during weight loss.
  6. Serving Size: This is a critical, overarching factor. All calculations are based on the serving size provided. A small serving of a high-point food might be manageable, while a large serving can quickly consume a significant portion of a daily point budget. Always ensure you are using the correct nutritional information for the actual amount consumed.
  7. Processing Level: While not directly in the formula, highly processed foods often combine high levels of calories, sugar, saturated fat, and sodium, leading to disproportionately high point values. Whole, unprocessed foods generally fare much better.

By considering these factors, users can better understand why certain foods are assigned specific 2018 Weight Watchers Points values and make more strategic choices.

Frequently Asked Questions (FAQ)

Q: What is the difference between 2018 WW SmartPoints and older PointsPlus?

A: The 2018 SmartPoints system was a refinement of the PointsPlus system. While both assigned values to foods, SmartPoints placed a greater emphasis on discouraging sugar and sodium, and provided a larger protein credit, aiming to guide members towards more nutrient-dense choices.

Q: Does this calculator apply to the current WW program?

A: No, this calculator is specifically for the 2018 Weight Watchers SmartPoints system. Current WW programs may use different point systems like PersonalPoints or Simply Filling, which have different calculation methods or focus areas.

Q: Can I use this calculator for drinks?

A: Yes, you can use this calculator for drinks if you have the full nutritional information (calories, saturated fat, sugar, sodium, protein) and the serving size in grams. Be mindful that many zero-calorie sweeteners do not impact the calculation, but added sugars and fats will.

Q: What if my food has 0g of a certain nutrient?

A: If a nutrient value is 0, simply enter '0' into the corresponding field. It will correctly contribute zero points (or a bonus if it's protein) to the total calculation.

Q: How does the calculator handle rounding?

A: This calculator provides the direct mathematical output of the formula. Weight Watchers often applies specific rounding rules (e.g., to the nearest whole number) or minimum point values in their official system. For precise WW tracking, always check the official WW app or resources.

Q: Is the "Weight of Food" input essential for the calculation?

A: Yes, the weight is primarily used for context and ensuring the nutritional data provided (calories, fat, etc.) corresponds to the actual amount of food being consumed. While the core WW formula uses per-serving nutritional values, this calculator uses the weight to allow users to input data based on standard measurements.

Q: Can I input values for a custom meal?

A: Absolutely. If you combine ingredients, calculate the total nutritional values for the entire meal (in grams, kcal, g, mg) and input those combined figures into the calculator.

Q: Why does protein lower the points?

A: Weight Watchers introduced protein as a "negative" factor (meaning it reduces points) because protein is highly satiating and helps preserve muscle mass, which is beneficial for metabolism during weight loss. This encourages healthier, protein-rich meal choices.

Related Tools and Internal Resources

Explore these resources to further enhance your health and nutrition tracking:

2018 WW Points Calculation Example Table

Sample Food Points Calculation (2018 Formula)
Food Item Serving Size (g) Calories (kcal) Sat Fat (g) Sugar (g) Sodium (mg) Protein (g) Calculated 2018 WW Points
Grilled Chicken Breast 120 200 2 0 150 35 1
Apple 180 95 0.2 19 2 0.5 4
Almonds (1 oz) 28 164 1.5 1.2 1 6 5
Yogurt (Greek, Plain, Non-fat) 170 100 0 6 60 18 2
Processed Granola Bar 40 180 3 15 120 3 8

© 2023 Your Website Name. All rights reserved. This calculator is for informational purposes only and does not constitute professional dietary advice.

var pointsFormula = function(weight, calories, satFat, sugar, sodium, protein) { var caloriesPoints = calories / 30; var fatPoints = satFat / 9; var sugarPoints = sugar / 12; var sodiumPoints = sodium / 150; var proteinPoints = protein / 5; var totalPoints = caloriesPoints + fatPoints + sugarPoints + sodiumPoints – proteinPoints; // Ensure points are not negative and are rounded appropriately (WW often rounds up to nearest whole number, but we'll show raw calc and floor at 0) var finalPoints = Math.max(0, totalPoints); return { finalPoints: finalPoints.toFixed(2), caloriesPoints: caloriesPoints.toFixed(2), fatPoints: fatPoints.toFixed(2), sugarPoints: sugarPoints.toFixed(2), sodiumPoints: sodiumPoints.toFixed(2), proteinPoints: proteinPoints.toFixed(2) }; }; var updateChart = function() { var canvas = document.getElementById('wwPointsChart'); if (!canvas) return; // Exit if canvas is not present var ctx = canvas.getContext('2d'); ctx.clearRect(0, 0, canvas.width, canvas.height); // Clear previous drawing var weight = parseFloat(document.getElementById('foodWeight').value); var calories = parseFloat(document.getElementById('calories').value); var satFat = parseFloat(document.getElementById('saturatedFat').value); var sugar = parseFloat(document.getElementById('sugar').value); var sodium = parseFloat(document.getElementById('sodium').value); var protein = parseFloat(document.getElementById('protein').value); if (isNaN(weight) || isNaN(calories) || isNaN(satFat) || isNaN(sugar) || isNaN(sodium) || isNaN(protein) || weight < 0 || calories < 0 || satFat < 0 || sugar < 0 || sodium < 0 || protein < 0) { // Do not draw chart if inputs are invalid return; } var calcResult = pointsFormula(weight, calories, satFat, sugar, sodium, protein); var chartData = { labels: ["Calories", "Saturated Fat", "Sugar", "Sodium", "Protein (Credit)"], datasets: [{ label: 'Points Contribution', data: [ parseFloat(calcResult.caloriesPoints), parseFloat(calcResult.fatPoints), parseFloat(calcResult.sugarPoints), parseFloat(calcResult.sodiumPoints), -parseFloat(calcResult.proteinPoints) // Protein is a credit, shown as negative contribution ], backgroundColor: [ 'rgba(255, 99, 132, 0.6)', // Calories – Red 'rgba(54, 162, 235, 0.6)', // Saturated Fat – Blue 'rgba(255, 206, 86, 0.6)', // Sugar – Yellow 'rgba(75, 192, 192, 0.6)', // Sodium – Green 'rgba(153, 102, 255, 0.6)' // Protein – Purple ], borderColor: [ 'rgba(255, 99, 132, 1)', 'rgba(54, 162, 235, 1)', 'rgba(255, 206, 86, 1)', 'rgba(75, 192, 192, 1)', 'rgba(153, 102, 255, 1)' ], borderWidth: 1 }] }; var chartHeight = 300; canvas.height = chartHeight; canvas.width = Math.max(400, canvas.parentNode.offsetWidth * 0.9); // Responsive width new Chart(ctx, { type: 'bar', data: chartData, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: false, // Allow negative values for protein credit title: { display: true, text: 'Point Contribution' } }, x: { title: { display: true, text: 'Nutrient Component' } } }, plugins: { legend: { display: false // We'll use a custom legend }, title: { display: true, text: '2018 WW SmartPoints Contribution Breakdown' } } } }); // Custom Legend Generation var legendHtml = ''; for (var i = 0; i < chartData.labels.length; i++) { legendHtml += '' + '' + chartData.labels[i] + ': ' + chartData.datasets[0].data[i].toFixed(2) + ''; } document.getElementById('wwChartLegend').innerHTML = legendHtml; document.getElementById('wwPointsChart').style.display = 'block'; document.getElementById('wwChartLegend').style.display = 'block'; }; var calculatePoints = function() { var weightInput = document.getElementById('foodWeight'); var caloriesInput = document.getElementById('calories'); var satFatInput = document.getElementById('saturatedFat'); var sugarInput = document.getElementById('sugar'); var sodiumInput = document.getElementById('sodium'); var proteinInput = document.getElementById('protein'); var weightError = document.getElementById('foodWeightError'); var caloriesError = document.getElementById('caloriesError'); var satFatError = document.getElementById('saturatedFatError'); var sugarError = document.getElementById('sugarError'); var sodiumError = document.getElementById('sodiumError'); var proteinError = document.getElementById('proteinError'); var isValid = true; // Reset errors weightError.style.display = 'none'; caloriesError.style.display = 'none'; satFatError.style.display = 'none'; sugarError.style.display = 'none'; sodiumError.style.display = 'none'; proteinError.style.display = 'none'; var weight = parseFloat(weightInput.value); var calories = parseFloat(caloriesInput.value); var satFat = parseFloat(satFatInput.value); var sugar = parseFloat(sugarInput.value); var sodium = parseFloat(sodiumInput.value); var protein = parseFloat(proteinInput.value); if (isNaN(weight) || weight < 0) { weightError.textContent = "Please enter a valid weight (0 or more)."; weightError.style.display = 'block'; isValid = false; } if (isNaN(calories) || calories < 0) { caloriesError.textContent = "Please enter valid calories (0 or more)."; caloriesError.style.display = 'block'; isValid = false; } if (isNaN(satFat) || satFat < 0) { satFatError.textContent = "Please enter valid saturated fat (0 or more)."; satFatError.style.display = 'block'; isValid = false; } if (isNaN(sugar) || sugar < 0) { sugarError.textContent = "Please enter valid sugar (0 or more)."; sugarError.style.display = 'block'; isValid = false; } if (isNaN(sodium) || sodium < 0) { sodiumError.textContent = "Please enter valid sodium (0 or more)."; sodiumError.style.display = 'block'; isValid = false; } if (isNaN(protein) || protein < 0) { proteinError.textContent = "Please enter valid protein (0 or more)."; proteinError.style.display = 'block'; isValid = false; } if (isValid) { var result = pointsFormula(weight, calories, satFat, sugar, sodium, protein); document.getElementById('main-result').textContent = result.finalPoints; document.getElementById('caloriesPoints').textContent = result.caloriesPoints; document.getElementById('fatPoints').textContent = result.fatPoints; document.getElementById('sugarPoints').textContent = result.sugarPoints; document.getElementById('sodiumPoints').textContent = result.sodiumPoints; document.getElementById('proteinPoints').textContent = result.proteinPoints; document.getElementById('assumedWeight').textContent = weightInput.value; document.getElementById('assumedSatFat').textContent = satFatInput.value; document.getElementById('assumedSugar').textContent = sugarInput.value; document.getElementById('assumedSodium').textContent = sodiumInput.value; document.getElementById('assumedProtein').textContent = proteinInput.value; updateChart(); // Update chart after calculation } else { // Clear results if validation fails document.getElementById('main-result').textContent = '–'; document.getElementById('caloriesPoints').textContent = '–'; document.getElementById('fatPoints').textContent = '–'; document.getElementById('sugarPoints').textContent = '–'; document.getElementById('sodiumPoints').textContent = '–'; document.getElementById('proteinPoints').textContent = '–'; document.getElementById('assumedWeight').textContent = '–'; document.getElementById('assumedSatFat').textContent = '–'; document.getElementById('assumedSugar').textContent = '–'; document.getElementById('assumedSodium').textContent = '–'; document.getElementById('assumedProtein').textContent = '–'; document.getElementById('wwPointsChart').style.display = 'none'; document.getElementById('wwChartLegend').style.display = 'none'; } }; var resetCalculator = function() { document.getElementById('foodWeight').value = '100'; document.getElementById('calories').value = '100'; document.getElementById('saturatedFat').value = '10'; document.getElementById('sugar').value = '5'; document.getElementById('sodium').value = '200'; document.getElementById('protein').value = '15'; // Reset errors document.getElementById('foodWeightError').textContent = ''; document.getElementById('foodWeightError').style.display = 'none'; document.getElementById('caloriesError').textContent = ''; document.getElementById('caloriesError').style.display = 'none'; document.getElementById('saturatedFatError').textContent = ''; document.getElementById('saturatedFatError').style.display = 'none'; document.getElementById('sugarError').textContent = ''; document.getElementById('sugarError').style.display = 'none'; document.getElementById('sodiumError').textContent = ''; document.getElementById('sodiumError').style.display = 'none'; document.getElementById('proteinError').textContent = ''; document.getElementById('proteinError').style.display = 'none'; document.getElementById('main-result').textContent = '–'; document.getElementById('caloriesPoints').textContent = '–'; document.getElementById('fatPoints').textContent = '–'; document.getElementById('sugarPoints').textContent = '–'; document.getElementById('sodiumPoints').textContent = '–'; document.getElementById('proteinPoints').textContent = '–'; document.getElementById('assumedWeight').textContent = '–'; document.getElementById('assumedSatFat').textContent = '–'; document.getElementById('assumedSugar').textContent = '–'; document.getElementById('assumedSodium').textContent = '–'; document.getElementById('assumedProtein').textContent = '–'; document.getElementById('wwPointsChart').style.display = 'none'; document.getElementById('wwChartLegend').style.display = 'none'; }; var copyResults = function() { var mainResult = document.getElementById('main-result').textContent; var caloriesPoints = document.getElementById('caloriesPoints').textContent; var fatPoints = document.getElementById('fatPoints').textContent; var sugarPoints = document.getElementById('sugarPoints').textContent; var sodiumPoints = document.getElementById('sodiumPoints').textContent; var proteinPoints = document.getElementById('proteinPoints').textContent; var assumedWeight = document.getElementById('assumedWeight').textContent; var assumedSatFat = document.getElementById('assumedSatFat').textContent; var assumedSugar = document.getElementById('assumedSugar').textContent; var assumedSodium = document.getElementById('assumedSodium').textContent; var assumedProtein = document.getElementById('assumedProtein').textContent; if (mainResult === '–') { alert("No results to copy yet. Please calculate first."); return; } var resultsText = "2018 WW SmartPoints Calculation:\n\n"; resultsText += "Total Points: " + mainResult + "\n\n"; resultsText += "Breakdown:\n"; resultsText += "- Calories Points: " + caloriesPoints + "\n"; resultsText += "- Fat Points: " + fatPoints + "\n"; resultsText += "- Sugar Points: " + sugarPoints + "\n"; resultsText += "- Sodium Points: " + sodiumPoints + "\n"; resultsText += "- Protein Credit: " + proteinPoints + "\n\n"; resultsText += "Assumed Nutritional Values:\n"; resultsText += "- Weight: " + assumedWeight + " g\n"; resultsText += "- Saturated Fat: " + assumedSatFat + " g\n"; resultsText += "- Sugar: " + assumedSugar + " g\n"; resultsText += "- Sodium: " + assumedSodium + " mg\n"; resultsText += "- Protein: " + assumedProtein + " g\n"; try { navigator.clipboard.writeText(resultsText).then(function() { alert('Results copied to clipboard!'); }, function(err) { console.error('Could not copy text: ', err); alert('Failed to copy results. Please copy manually.'); }); } catch (e) { console.error('Clipboard API not available: ', e); alert('Failed to copy results. Your browser may not support this feature or it is disabled. Please copy manually.'); } }; // Initial calculation on page load if values are present document.addEventListener('DOMContentLoaded', function() { // Check if inputs have default values and calculate if so if (document.getElementById('foodWeight').value !== '' && document.getElementById('calories').value !== '' && document.getElementById('saturatedFat').value !== '' && document.getElementById('sugar').value !== '' && document.getElementById('sodium').value !== '' && document.getElementById('protein').value !== '') { calculatePoints(); } }); // Include Chart.js library for the canvas chart var script = document.createElement('script'); script.src = 'https://cdn.jsdelivr.net/npm/chart.js@3.7.0/dist/chart.min.js'; script.onload = function() { console.log('Chart.js loaded.'); // Recalculate after Chart.js is loaded to ensure chart is drawn if (document.getElementById('main-result').textContent !== '–') { updateChart(); } }; document.head.appendChild(script);

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