Weight Watchers Points Plus System Calculator

Weight Watchers Points Plus System Calculator & Guide :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; } .calculator-section { margin-bottom: 40px; padding: 30px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: var(–shadow); } .calculator-section h2 { color: var(–primary-color); text-align: center; margin-bottom: 25px; } .input-group { margin-bottom: 20px; text-align: left; } .input-group label { display: block; margin-bottom: 8px; font-weight: bold; color: var(–primary-color); } .input-group input[type="number"], .input-group select { width: calc(100% – 22px); padding: 10px; border: 1px solid var(–border-color); border-radius: 4px; font-size: 1em; box-sizing: border-box; } .input-group input[type="number"]:focus, .input-group select:focus { border-color: var(–primary-color); outline: none; box-shadow: 0 0 0 2px rgba(0, 74, 153, 0.2); } .input-group .helper-text { font-size: 0.85em; color: #666; margin-top: 5px; display: block; } .error-message { color: #dc3545; font-size: 0.85em; margin-top: 5px; display: none; /* Hidden by default */ } .error-message.visible { display: block; } .button-group { display: flex; justify-content: space-between; margin-top: 25px; gap: 10px; } .button-group button, .button-group input[type="button"] { flex-grow: 1; padding: 12px 15px; border: none; border-radius: 5px; font-size: 1em; cursor: pointer; transition: background-color 0.3s ease; font-weight: bold; } .btn-calculate { background-color: var(–primary-color); color: white; } .btn-calculate:hover { background-color: #003366; } .btn-reset { background-color: #6c757d; color: white; } .btn-reset:hover { background-color: #5a6268; } .btn-copy { background-color: var(–success-color); color: white; } .btn-copy:hover { background-color: #218838; } #results-container { margin-top: 30px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: var(–shadow); text-align: center; } #results-container h3 { color: var(–primary-color); margin-bottom: 20px; } .primary-result { font-size: 2.5em; font-weight: bold; color: var(–success-color); margin-bottom: 15px; padding: 15px; background-color: #e9f7ef; border-radius: 5px; display: inline-block; } .intermediate-results div { margin-bottom: 10px; font-size: 1.1em; } .intermediate-results span { font-weight: bold; color: var(–primary-color); } .formula-explanation { font-size: 0.9em; color: #555; margin-top: 20px; padding-top: 15px; border-top: 1px dashed #ccc; } table { width: 100%; border-collapse: collapse; margin-top: 25px; box-shadow: var(–shadow); } th, td { padding: 12px 15px; text-align: left; border-bottom: 1px solid var(–border-color); } thead { background-color: var(–primary-color); color: white; } tbody tr:nth-child(even) { background-color: #f2f2f2; } caption { font-size: 1.1em; font-weight: bold; color: var(–primary-color); margin-bottom: 10px; caption-side: top; text-align: left; } #chartContainer { margin-top: 30px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: var(–shadow); text-align: center; } #chartContainer h3 { color: var(–primary-color); margin-bottom: 20px; } canvas { max-width: 100%; height: auto; } .article-section { margin-top: 40px; padding: 30px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: var(–shadow); } .article-section h2, .article-section h3 { color: var(–primary-color); margin-bottom: 15px; } .article-section h2 { font-size: 2em; border-bottom: 2px solid var(–primary-color); padding-bottom: 10px; } .article-section h3 { font-size: 1.5em; margin-top: 25px; } .article-section p, .article-section ul, .article-section ol { margin-bottom: 15px; } .article-section ul, .article-section ol { padding-left: 25px; } .article-section li { margin-bottom: 8px; } .faq-item { margin-bottom: 15px; } .faq-item strong { color: var(–primary-color); display: block; margin-bottom: 5px; } .internal-links { margin-top: 30px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; background-color: var(–card-background); box-shadow: var(–shadow); } .internal-links h3 { color: var(–primary-color); margin-bottom: 20px; } .internal-links ul { list-style: none; padding: 0; } .internal-links li { margin-bottom: 10px; } .internal-links a { color: var(–primary-color); text-decoration: none; font-weight: bold; } .internal-links a:hover { text-decoration: underline; } .internal-links p { font-size: 0.9em; color: #555; margin-top: 5px; } .highlight { background-color: var(–success-color); color: white; padding: 2px 5px; border-radius: 3px; } .variable-table th, .variable-table td { padding: 10px; } .variable-table th { background-color: #e0e0e0; } .variable-table td:first-child { font-weight: bold; }

Weight Watchers Points Plus System Calculator

Your Essential Tool for Smart Weight Management

Calculate Your Points Plus Value

Enter the name of the food or drink.
Enter the quantity of the serving (e.g., 1, 0.5, 100).
Piece Cup Ounce (oz) Gram (g) Milliliter (ml) Serving Select the unit for your serving size.
Enter the total calories for the specified serving size.
Enter the grams of saturated fat for the specified serving size.
Enter the grams of sugar for the specified serving size.
Enter the milligrams of sodium for the specified serving size.

Your Calculated Points Plus Value

Calories Points:
Saturated Fat Points:
Sugar Points:
Sodium Points:
Total Points Plus:
Formula Used: Points Plus = (Calories / 50) + (Saturated Fat / 9) + (Sugar / 5) + (Sodium / 150). Each component is rounded to the nearest whole number.

Points Breakdown Over Time

Points Plus Data Table

Points Plus Calculation Breakdown
Component Value per Serving Points Contribution
Calories
Saturated Fat (g)
Sugar (g)
Sodium (mg)
Total Points Plus

What is the Weight Watchers Points Plus System?

The Weight Watchers Points Plus system was a popular weight management program designed by Weight Watchers (now WW) to help individuals make healthier food choices by assigning a point value to different foods and beverages. The core idea was to encourage consumption of nutrient-dense, lower-calorie foods while limiting those high in calories, saturated fat, sugar, and sodium. Unlike earlier systems, Points Plus placed a greater emphasis on the nutritional quality of food, not just its calorie count. It aimed to simplify healthy eating by translating complex nutritional information into a single, easy-to-understand number: the Points Plus value.

Who should use it? This system is beneficial for individuals seeking a structured approach to weight loss or maintenance who want to understand the nutritional impact of their food choices. It's particularly helpful for those who find calorie counting tedious or prefer a system that rewards healthier options. It can also be a good starting point for people new to dietary changes, providing clear guidelines.

Common misconceptions: A frequent misunderstanding is that "Points Plus" means "low points are always good." While the system encourages lower points, it also rewards foods that are more filling and nutritious. Another misconception is that all foods with the same point value are equally healthy or filling; the system's design aimed to differentiate based on nutritional factors, but individual satiety can vary. Finally, some believe it's solely about restriction, when in reality, it's about making informed choices within a flexible framework.

Weight Watchers Points Plus Formula and Mathematical Explanation

The Points Plus system is built upon a specific formula that assigns a point value to foods based on four key nutritional components: calories, saturated fat, sugar, and sodium. The intention was to create a system that not only managed calorie intake but also encouraged healthier fat choices, limited added sugars, and controlled sodium levels. Foods that are more filling (like fruits and vegetables, which are often zero or low in points) were implicitly encouraged by this structure.

The formula is designed to give more weight to less desirable nutritional aspects. For instance, saturated fat and sugar contribute more points per gram than calories do, reflecting their impact on health and weight management. Sodium is also factored in, as high intake can lead to water retention and other health issues.

The core Points Plus formula is:

Points Plus = (Calories / 50) + (Saturated Fat / 9) + (Sugar / 5) + (Sodium / 150)

Each component is calculated, and then the sum is typically rounded to the nearest whole number. This rounding simplifies the tracking process for users.

Variable Explanations

Let's break down each variable in the Points Plus formula:

Variable Meaning Unit Typical Range (per serving)
Calories The total energy provided by a specific serving of food. kcal 0 – 1000+
Saturated Fat The amount of saturated fat in a specific serving of food. This is a key factor as it's linked to cardiovascular health. grams (g) 0 – 50+
Sugar The amount of simple sugars (including added sugars) in a specific serving of food. High sugar intake is linked to weight gain and metabolic issues. grams (g) 0 – 100+
Sodium The amount of sodium (salt) in a specific serving of food. Excessive sodium can contribute to high blood pressure. milligrams (mg) 0 – 3000+

The divisors (50, 9, 5, 150) are constants used by Weight Watchers to scale the contribution of each nutrient to the final Points Plus value. These specific numbers were chosen to emphasize the impact of fat, sugar, and sodium relative to calories.

Practical Examples (Real-World Use Cases)

Understanding the Points Plus system is best done through practical examples. Here are a couple of scenarios demonstrating how different foods are evaluated:

Example 1: A Serving of Grilled Chicken Breast

Let's calculate the Points Plus value for a standard 4oz (approx. 113g) serving of grilled chicken breast:

  • Food Item: Grilled Chicken Breast
  • Serving Size: 113g (approx. 4oz)
  • Calories: 180 kcal
  • Saturated Fat: 3g
  • Sugar: 0g
  • Sodium: 75mg

Calculation:

  • Calories Points: 180 / 50 = 3.6
  • Saturated Fat Points: 3 / 9 = 0.33
  • Sugar Points: 0 / 5 = 0
  • Sodium Points: 75 / 150 = 0.5

Total Points Plus: 3.6 + 0.33 + 0 + 0.5 = 4.43. Rounded to the nearest whole number, this is 4 Points Plus.

Interpretation: Lean protein sources like grilled chicken are relatively low in Points Plus, making them a good choice for a filling meal within a weight management plan. The low sugar and moderate sodium contribute to its favorable score.

Example 2: A Can of Sugary Soda

Now, let's look at a common sugary beverage, a 12oz (approx. 355ml) can of cola:

  • Food Item: Sugary Soda
  • Serving Size: 355ml (12oz)
  • Calories: 140 kcal
  • Saturated Fat: 0g
  • Sugar: 39g
  • Sodium: 45mg

Calculation:

  • Calories Points: 140 / 50 = 2.8
  • Saturated Fat Points: 0 / 9 = 0
  • Sugar Points: 39 / 5 = 7.8
  • Sodium Points: 45 / 150 = 0.3

Total Points Plus: 2.8 + 0 + 7.8 + 0.3 = 10.9. Rounded to the nearest whole number, this is 11 Points Plus.

Interpretation: This example highlights how high sugar content dramatically increases the Points Plus value. Despite having zero saturated fat and relatively low sodium, the sugar alone contributes a significant number of points, making sugary drinks a less favorable choice for frequent consumption on the Points Plus plan.

How to Use This Weight Watchers Points Plus Calculator

Our calculator is designed to be intuitive and provide quick, accurate results. Follow these simple steps:

  1. Enter Food Details: In the input fields, type the name of the food or drink you want to calculate.
  2. Specify Serving Size: Enter the exact quantity of the food item. Be precise!
  3. Select Serving Unit: Choose the appropriate unit (e.g., piece, cup, oz, gram, ml) that matches your serving size.
  4. Input Nutritional Information: Accurately enter the Calories, Saturated Fat (in grams), Sugar (in grams), and Sodium (in milligrams) for the specified serving size. You can usually find this information on the product's nutrition label or through reliable online databases.
  5. Calculate: Click the "Calculate Points" button.

How to Read Results:

  • The primary highlighted result shows the final, rounded Points Plus value for your food item.
  • The intermediate values break down the points contributed by each component (Calories, Saturated Fat, Sugar, Sodium) and the total points.
  • The formula explanation clarifies how the calculation was performed.
  • The data table provides a clear overview of the inputs and their corresponding point contributions.
  • The dynamic chart visually represents the breakdown of points, helping you see which component contributes the most.

Decision-Making Guidance: Use the calculated Points Plus value to make informed choices. Foods with lower Points Plus values are generally encouraged. Compare different food options to see which fits better within your daily or weekly Points Plus budget. Remember that the system also considers satiety, so while a low-point food is good, ensure it also meets your nutritional needs and keeps you feeling full.

Key Factors That Affect Weight Watchers Points Plus Results

Several factors significantly influence the Points Plus value calculated for any given food item. Understanding these can help you make even smarter choices:

  1. Serving Size Accuracy: This is paramount. If you misjudge the serving size, your entire calculation will be off. Using measuring cups, spoons, or a food scale ensures accuracy. A small error in serving size can lead to a significant difference in points.
  2. Saturated Fat Content: Saturated fat carries a high point value per gram (9 points). Foods high in saturated fats (like fatty meats, butter, full-fat dairy, fried foods) will quickly rack up points. Opting for lean proteins and low-fat dairy alternatives significantly reduces this component.
  3. Sugar Content: Sugar also carries a substantial point value (5 points per gram). This includes both naturally occurring sugars in fruits (though fruits are often zero or low points due to fiber and volume) and, more importantly, added sugars in processed foods, drinks, and desserts. Reducing added sugar intake is a key strategy for lowering points.
  4. Calorie Density: While not the sole driver, calories still contribute to the points (50 calories per point). Foods that pack a lot of calories into a small volume (e.g., nuts, oils, processed snacks) will have higher point values. Whole, unprocessed foods often have lower calorie density.
  5. Sodium Content: Sodium contributes 1 point per 150mg. While it has the lowest point contribution per unit among the factors, high-sodium processed foods can still add up. It's also important for overall health, independent of the points system.
  6. Food Processing Level: Highly processed foods often contain added sugars, unhealthy fats, and sodium to enhance flavor and shelf life, leading to higher Points Plus values. Whole, unprocessed foods like fruits, vegetables, lean proteins, and whole grains generally have lower or zero points.
  7. Nutrient Balance (Implicit): Although not directly in the formula, the Points Plus system implicitly favors foods with high fiber and protein relative to their calories, fat, and sugar. These nutrients promote satiety, meaning you feel fuller for longer, which is crucial for successful weight management.

Frequently Asked Questions (FAQ)

Q1: Is the Points Plus system still active?

A1: Weight Watchers has evolved its program over the years. While the Points Plus system was highly successful, the current program is known as WW Points (or WW Freestyle, depending on the version). The core principles of tracking and making healthier choices remain, but the specific point values and formulas may differ.

Q2: Can I use this calculator for the current WW program?

A2: This calculator is specifically for the older Points Plus system. The current WW Points system uses a different formula and may have different point values for foods. For the most accurate results on the current program, you would need to use the official WW app or resources.

Q3: Why do fruits and vegetables often have zero Points Plus?

A3: Fruits and vegetables are typically very low in calories, saturated fat, sugar (natural sugars are less of a concern than added), and sodium. Their high fiber and water content also make them very filling for their point value, aligning with the program's goal of promoting nutrient-dense, satiating foods.

Q4: How are "zero point" foods determined?

A4: Zero point foods in the Points Plus system were generally those considered highly satiating and nutrient-dense with minimal impact from the formula's negative factors (fat, sugar, sodium). This often included fruits, non-starchy vegetables, lean proteins (like chicken breast, fish, beans), and eggs, depending on the specific WW plan version.

Q5: What if I don't know the exact nutritional information?

A5: For packaged foods, check the nutrition facts label. For restaurant meals or homemade dishes, use reliable online nutrition databases (like the USDA FoodData Central or reputable health websites) or estimate based on similar known foods. Accuracy is key, so do your best to find precise data.

Q6: Does the Points Plus system account for fiber?

A6: The original Points Plus formula did not directly include fiber as a factor that reduces points. However, foods high in fiber (like whole grains, fruits, vegetables) tend to be lower in the negative factors (fat, sugar, sodium) and calories, thus naturally having lower point values. Fiber's role was more in promoting satiety.

Q7: How many Points Plus do I get per day?

A7: Daily Points Plus allowances varied based on individual factors like starting weight, activity level, and weight loss goals. WW provided personalized daily and weekly point budgets to members.

Q8: Is it possible to have negative points from a food?

A8: No, the formula is designed so that even with very low or zero values for fat, sugar, and sodium, the calorie component will result in a non-negative value. Points Plus values are always zero or positive.

© 2023 Your Website Name. All rights reserved.

Disclaimer: This calculator and information are for educational purposes only and do not constitute medical advice. Consult with a healthcare professional or registered dietitian for personalized guidance.

var chartInstance = null; // Global variable to hold chart instance function getElement(id) { return document.getElementById(id); } function validateInput(inputId, errorId, minValue, maxValue) { var input = getElement(inputId); var errorDiv = getElement(errorId); var value = parseFloat(input.value); errorDiv.classList.remove('visible'); input.style.borderColor = '#ddd'; if (input.value === "") { errorDiv.textContent = "This field cannot be empty."; errorDiv.classList.add('visible'); input.style.borderColor = '#dc3545'; return false; } if (isNaN(value)) { errorDiv.textContent = "Please enter a valid number."; errorDiv.classList.add('visible'); input.style.borderColor = '#dc3545'; return false; } if (minValue !== undefined && value maxValue) { errorDiv.textContent = "Value is too high."; errorDiv.classList.add('visible'); input.style.borderColor = '#dc3545'; return false; } return true; } function calculatePoints() { var isValid = true; isValid &= validateInput('servingSize', 'servingSizeError', 0); isValid &= validateInput('calories', 'caloriesError', 0); isValid &= validateInput('saturatedFat', 'saturatedFatError', 0); isValid &= validateInput('sugar', 'sugarError', 0); isValid &= validateInput('sodium', 'sodiumError', 0); if (!isValid) { return; } var servingSize = parseFloat(getElement('servingSize').value); var calories = parseFloat(getElement('calories').value); var saturatedFat = parseFloat(getElement('saturatedFat').value); var sugar = parseFloat(getElement('sugar').value); var sodium = parseFloat(getElement('sodium').value); var caloriesPoints = calories / 50; var fatPoints = saturatedFat / 9; var sugarPoints = sugar / 5; var sodiumPoints = sodium / 150; var totalPoints = caloriesPoints + fatPoints + sugarPoints + sodiumPoints; // Rounding to nearest whole number var roundedTotalPoints = Math.round(totalPoints); var roundedCaloriesPoints = Math.round(caloriesPoints); var roundedFatPoints = Math.round(fatPoints); var roundedSugarPoints = Math.round(sugarPoints); var roundedSodiumPoints = Math.round(sodiumPoints); getElement('primaryResult').textContent = roundedTotalPoints; getElement('caloriesPoints').getElementsByTagName('span')[0].textContent = roundedCaloriesPoints; getElement('fatPoints').getElementsByTagName('span')[0].textContent = roundedFatPoints; getElement('sugarPoints').getElementsByTagName('span')[0].textContent = roundedSugarPoints; getElement('sodiumPoints').getElementsByTagName('span')[0].textContent = roundedSodiumPoints; getElement('totalPoints').getElementsByTagName('span')[0].textContent = roundedTotalPoints; // Update table getElement('tableCalories').textContent = calories.toFixed(1); getElement('tableSaturatedFat').textContent = saturatedFat.toFixed(1); getElement('tableSugar').textContent = sugar.toFixed(1); getElement('tableSodium').textContent = sodium.toFixed(1); getElement('tableCaloriesPoints').textContent = roundedCaloriesPoints; getElement('tableFatPoints').textContent = roundedFatPoints; getElement('tableSugarPoints').textContent = roundedSugarPoints; getElement('tableSodiumPoints').textContent = roundedSodiumPoints; getElement('tableTotalPoints').textContent = roundedTotalPoints; updateChart(roundedCaloriesPoints, roundedFatPoints, roundedSugarPoints, roundedSodiumPoints, roundedTotalPoints); } function resetForm() { getElement('foodName').value = "Apple"; getElement('servingSize').value = "1"; getElement('servingUnit').value = "piece"; getElement('calories').value = "95"; getElement('saturatedFat').value = "0.2"; getElement('sugar').value = "19"; getElement('sodium').value = "2"; // Clear errors getElement('servingSizeError').textContent = ""; getElement('servingSizeError').classList.remove('visible'); getElement('caloriesError').textContent = ""; getElement('caloriesError').classList.remove('visible'); getElement('saturatedFatError').textContent = ""; getElement('saturatedFatError').classList.remove('visible'); getElement('sugarError').textContent = ""; getElement('sugarError').classList.remove('visible'); getElement('sodiumError').textContent = ""; getElement('sodiumError').classList.remove('visible'); getElement('servingSize').style.borderColor = '#ddd'; getElement('calories').style.borderColor = '#ddd'; getElement('saturatedFat').style.borderColor = '#ddd'; getElement('sugar').style.borderColor = '#ddd'; getElement('sodium').style.borderColor = '#ddd'; // Reset results getElement('primaryResult').textContent = "–"; getElement('caloriesPoints').getElementsByTagName('span')[0].textContent = "–"; getElement('fatPoints').getElementsByTagName('span')[0].textContent = "–"; getElement('sugarPoints').getElementsByTagName('span')[0].textContent = "–"; getElement('sodiumPoints').getElementsByTagName('span')[0].textContent = "–"; getElement('totalPoints').getElementsByTagName('span')[0].textContent = "–"; // Reset table getElement('tableCalories').textContent = "–"; getElement('tableSaturatedFat').textContent = "–"; getElement('tableSugar').textContent = "–"; getElement('tableSodium').textContent = "–"; getElement('tableCaloriesPoints').textContent = "–"; getElement('tableFatPoints').textContent = "–"; getElement('tableSugarPoints').textContent = "–"; getElement('tableSodiumPoints').textContent = "–"; getElement('tableTotalPoints').textContent = "–"; // Reset chart if (chartInstance) { chartInstance.destroy(); chartInstance = null; } var canvas = getElement('pointsChart'); var ctx = canvas.getContext('2d'); ctx.clearRect(0, 0, canvas.width, canvas.height); } function copyResults() { var foodName = getElement('foodName').value || "N/A"; var servingSize = getElement('servingSize').value || "–"; var servingUnit = getElement('servingUnit').value || "–"; var calories = getElement('calories').value || "–"; var saturatedFat = getElement('saturatedFat').value || "–"; var sugar = getElement('sugar').value || "–"; var sodium = getElement('sodium').value || "–"; var primaryResult = getElement('primaryResult').textContent; var caloriesPoints = getElement('caloriesPoints').getElementsByTagName('span')[0].textContent; var fatPoints = getElement('fatPoints').getElementsByTagName('span')[0].textContent; var sugarPoints = getElement('sugarPoints').getElementsByTagName('span')[0].textContent; var sodiumPoints = getElement('sodiumPoints').getElementsByTagName('span')[0].textContent; var totalPoints = getElement('totalPoints').getElementsByTagName('span')[0].textContent; var resultsText = "— Weight Watchers Points Plus Calculation —\n\n"; resultsText += "Food Item: " + foodName + "\n"; resultsText += "Serving Size: " + servingSize + " " + servingUnit + "\n"; resultsText += "Nutritional Info (per serving):\n"; resultsText += " Calories: " + calories + " kcal\n"; resultsText += " Saturated Fat: " + saturatedFat + " g\n"; resultsText += " Sugar: " + sugar + " g\n"; resultsText += " Sodium: " + sodium + " mg\n\n"; resultsText += "— Calculated Points Plus —\n"; resultsText += "Primary Result (Total Points Plus): " + primaryResult + "\n"; resultsText += "Intermediate Values:\n"; resultsText += " Calories Points: " + caloriesPoints + "\n"; resultsText += " Saturated Fat Points: " + fatPoints + "\n"; resultsText += " Sugar Points: " + sugarPoints + "\n"; resultsText += " Sodium Points: " + sodiumPoints + "\n"; resultsText += "Total Points Plus: " + totalPoints + "\n\n"; resultsText += "Formula Used: (Calories / 50) + (Saturated Fat / 9) + (Sugar / 5) + (Sodium / 150) (rounded)\n"; try { navigator.clipboard.writeText(resultsText).then(function() { alert('Results copied to clipboard!'); }).catch(function(err) { console.error('Failed to copy: ', err); alert('Failed to copy results. Please copy manually.'); }); } catch (e) { console.error('Clipboard API not available: ', e); alert('Clipboard API not available. Please copy the text manually.'); } } function updateChart(calPoints, fatPoints, sugarPoints, sodiumPoints, totalPoints) { var canvas = getElement('pointsChart'); var ctx = canvas.getContext('2d'); // Destroy previous chart instance if it exists if (chartInstance) { chartInstance.destroy(); } // Create new chart instance chartInstance = new Chart(ctx, { type: 'bar', data: { labels: ['Calories', 'Saturated Fat', 'Sugar', 'Sodium'], datasets: [{ label: 'Points Contribution', data: [calPoints, fatPoints, sugarPoints, sodiumPoints], backgroundColor: [ 'rgba(54, 162, 235, 0.6)', // Calories – Blue 'rgba(255, 99, 132, 0.6)', // Saturated Fat – Red 'rgba(255, 206, 86, 0.6)', // Sugar – Yellow 'rgba(75, 192, 192, 0.6)' // Sodium – Green ], borderColor: [ 'rgba(54, 162, 235, 1)', 'rgba(255, 99, 132, 1)', 'rgba(255, 206, 86, 1)', 'rgba(75, 192, 192, 1)' ], borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Points' } } }, plugins: { legend: { display: false // Hide legend as labels are on x-axis }, title: { display: true, text: 'Points Breakdown per Component' } } } }); } // Initial calculation on load if default values are present document.addEventListener('DOMContentLoaded', function() { calculatePoints(); }); <!– –> <!– Example: –> <!– Add this line within the or before the closing tag –>

Leave a Comment