Difference Between Weight Watchers Point Plus Calcutor and Freestyle Calculator

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Weight Watchers Points Plus vs. Freestyle Calculator

Compare WW Points

Enter your food item's nutritional values to see its estimated points under both the Points Plus and Freestyle systems.

Enter the calorie content of the food item.
Enter the grams of saturated fat.
Enter the grams of sugar.
Enter the milligrams of sodium.
Enter the grams of protein.
Enter the grams of fiber.

Comparison Results

Points Plus Difference:

Points Plus Estimated:

Freestyle Estimated:

Difference Explained:

How it's Calculated:

Points Plus: Aims to balance calories, saturated fat, sugar, and sodium against protein and fiber. The formula is roughly: (Calories/50) + (Saturated Fat/9) + (Sugar/15) - (Protein/3) - (Fiber/10), rounded to the nearest whole number.

Freestyle: Replaced the Points Plus system, emphasizing zero-point foods and a simpler calculation for most other items, focusing primarily on calories, saturated fat, and sugar, while protein and fiber have less direct impact or are integrated differently. A simplified approximation for non-zero-point foods often looks like: (Calories/40) + (Saturated Fat/12) + (Sugar/15), rounded.

This calculator provides an approximation based on common interpretations of these systems.

Key Assumptions:

Points Plus: Assumes a standard metabolic rate and typical food composition, balancing macronutrients and micronutrients that affect satiety and metabolism.

Freestyle: Assumes a focus on whole, less processed foods, with a significant portion of the diet consisting of zero-point items (fruits, vegetables, lean proteins).

Note: Actual points can vary based on the specific WW plan year and regional variations.

Visualizing the estimated points for a typical serving based on inputs.

Points Breakdown Comparison
Metric Points Plus Contribution (Approx.) Freestyle Contribution (Approx.)
Calories
Saturated Fat
Sugar
Sodium
Protein
Fiber

What is the Difference Between Weight Watchers Points Plus and Freestyle?

The Weight Watchers (WW) program has evolved significantly over the years, with its point systems being a core component of its success. Two prominent systems that dieters often compare are the "Points Plus" program and the later "Freestyle" program. Understanding the nuances between these systems is crucial for anyone looking to leverage WW's tools for effective weight management. This comparison aims to clarify the fundamental differences, how points are calculated, and what these changes mean for your daily food choices.

Understanding the Evolution of WW Points

Weight Watchers initially launched its points system to simplify tracking food intake, assigning a point value to foods based on nutritional content that correlates with weight gain. The goal was to guide members toward healthier choices by making them aware of the "cost" of different foods in terms of their weight loss journey.

Points Plus System

The Points Plus system, introduced in 2010, represented a significant overhaul of the original points plan. It aimed to provide a more accurate reflection of a food's impact on weight loss by re-evaluating the factors that contribute to satiety and metabolism. Unlike its predecessor, Points Plus placed a stronger emphasis on nutrient density.

  • Key Factors: Calories, saturated fat, sugar, and sodium were positive contributors to a food's point value. Protein and fiber were negative contributors, meaning foods higher in these nutrients had fewer points.
  • Goal: To encourage consumption of healthier, more filling foods that would keep members satisfied longer, thereby reducing overall calorie intake and promoting weight loss.
  • Flexibility: It allowed for a wider range of foods to be consumed within a daily point budget, provided members made smart choices that balanced the different factors.

Freestyle Program

Launched in late 2017, the Freestyle program marked another major shift in the WW approach. While it retained the concept of points, it introduced a substantial list of "zero-point" foods and adjusted the point calculation formula. The core idea was to simplify tracking and focus on healthier eating patterns.

  • Zero-Point Foods: A substantial list of fruits, vegetables, lean proteins (like chicken breast and fish), and eggs were made zero-point foods. This meant members could eat these foods without tracking them, promoting greater flexibility and adherence.
  • Adjusted Formula: For non-zero-point foods, the calculation became simpler. While still considering calories, saturated fat, and sugar, the impact of protein and fiber was either reduced or integrated differently. Often, the focus shifted more heavily towards calories, saturated fat, and sugar.
  • Focus: The program aimed to make healthy eating more sustainable and less restrictive, encouraging members to fill up on nutrient-dense, low-impact foods.

Key Differences Summarized

The primary divergence between Points Plus and Freestyle lies in the introduction of a vast zero-point food list and the refinement of the calculation formula. Freestyle significantly de-emphasized the point values of lean proteins and many other healthy staples, making them freely available. Points Plus, while more balanced than earlier systems, still assigned points to these nutrient-dense foods. This makes Freestyle generally perceived as more lenient, especially for individuals who rely heavily on lean proteins and vegetables.

Who Should Use Which Comparison?

Anyone who has followed WW under both systems will find this comparison valuable. It's particularly useful for:

  • Individuals transitioning from Points Plus to Freestyle and wanting to understand how their favorite foods are now evaluated.
  • New members trying to grasp the WW philosophy and how different food choices are weighted.
  • Anyone curious about the science behind WW's evolving point systems.

It's important to note that WW periodically updates its plans, so while these represent the core philosophies of Points Plus and Freestyle, current programs might have further refinements.

The difference between Weight Watchers Points Plus calculator and Freestyle calculator is best understood through practical application. This tool helps visualize how the same nutritional inputs can yield different point values, highlighting the program's shifts towards promoting whole foods and lean proteins.

Points Plus vs. Freestyle Formula and Mathematical Explanation

Delving into the mathematical underpinnings of the Weight Watchers Points Plus and Freestyle programs reveals how their approaches to assigning food values differ. While both aim to guide users toward healthier choices, the specific algorithms and the impact of various nutritional components vary.

Points Plus Formula Derivation

The Points Plus system was designed to be more sophisticated than previous WW point systems. It aimed to assign points based on a food's potential impact on weight and satiety. The formula generally considered the basis for Points Plus can be approximated as:

Points Plus = Round to nearest whole number of [ (Calories / 50) + (Saturated Fat / 9) + (Sugar / 15) - (Protein / 3) - (Fiber / 10) ]

Let's break down the variables:

  • Calories: Higher calorie foods contribute more points.
  • Saturated Fat: Considered detrimental to heart health and often linked to higher calorie density, it significantly increases point values.
  • Sugar: Simple sugars provide quick energy but little satiety and can lead to overconsumption, thus increasing points.
  • Protein: Promotes satiety and has a higher thermic effect than carbs or fat, so higher protein foods have their point values reduced.
  • Fiber: Aids digestion and promotes fullness, leading to a reduction in point values.

The coefficients (50, 9, 15, 3, 10) were empirically derived by WW to balance the impact of each nutrient on weight loss and satiety.

Freestyle Formula Approximation

The Freestyle program represented a significant shift, most notably by introducing a large list of zero-point foods. For foods that were not on this list, the calculation was simplified. The impact of protein and fiber was largely removed from the direct calculation for most items, shifting the focus to calories, saturated fat, and sugar. A commonly cited approximation for non-zero-point foods under Freestyle is:

Freestyle Points = Round to nearest whole number of [ (Calories / 40) + (Saturated Fat / 12) + (Sugar / 15) ]

Key changes and observations:

  • Zero-Point Foods: The most significant change. Foods like fruits, vegetables, lean proteins (chicken, fish, turkey breast, eggs, beans, lentils) have 0 points, regardless of their nutritional breakdown within typical ranges.
  • Adjusted Coefficients: The denominators for calories and saturated fat increased (meaning their contribution to points decreased per gram/unit compared to Points Plus). The sugar coefficient remained similar.
  • Reduced Emphasis: Protein and fiber no longer directly reduce the point count in the same way. Their benefits are acknowledged through the prioritization of zero-point foods that are naturally high in these nutrients.

Variables Table

Here's a table summarizing the variables used in these point calculations:

WW Points Calculation Variables
Variable Meaning Unit Typical Range for Calculation Input
Calories Energy content of the food kcal 0 – 1000+
Saturated Fat Unhealthy fats grams (g) 0 – 50+
Sugar Simple sugars (carbohydrates) grams (g) 0 – 100+
Sodium Salt content milligrams (mg) 0 – 2000+
Protein Macronutrient essential for satiety and muscle grams (g) 0 – 100+
Fiber Indigestible carbohydrate aiding digestion and fullness grams (g) 0 – 30+

It's important to understand that these formulas are approximations. Weight Watchers uses proprietary algorithms and may adjust coefficients based on ongoing research and program updates. This calculator provides a tool to explore the difference between Weight Watchers Points Plus calculator and Freestyle calculator based on these widely understood principles.

Practical Examples: Points Plus vs. Freestyle

To truly grasp the difference between the Weight Watchers Points Plus and Freestyle programs, let's examine a few practical examples. These scenarios illustrate how the same food item might be assigned different point values under each system, and what that means for a WW member's daily budget.

Example 1: A Lean Chicken Breast Salad

Consider a salad with grilled chicken breast, mixed greens, a few cherry tomatoes, cucumber slices, and a light vinaigrette dressing.

Scenario 1a: Grilled Chicken Breast (4 oz)**

  • Calories: 160 kcal
  • Saturated Fat: 1 g
  • Sugar: 0 g
  • Sodium: 80 mg
  • Protein: 30 g
  • Fiber: 0 g

Points Plus Calculation (Approximate):

(160/50) + (1/9) + (0/15) - (30/3) - (0/10) = 3.2 + 0.11 + 0 - 10 - 0 = -6.69

Rounded to the nearest whole number, this would be -7 Points Plus. However, WW typically floors points at 0, so it would likely be **0 Points Plus**. This highlights that even under Points Plus, lean proteins could have very low or zero points depending on the exact formula and rounding.

Freestyle Calculation (Approximate):

Under Freestyle, plain chicken breast is a Zero-Point Food. So, the calculated points are **0**. This demonstrates a key simplification and benefit of the Freestyle program.

Interpretation: In this specific case, both systems might assign 0 points to the chicken itself. However, Freestyle's explicit categorization simplifies tracking and encourages consumption of lean proteins without numerical penalty.

Scenario 1b: The Full Salad (including 1 tbsp vinaigrette)**

  • Chicken (as above)
  • Greens, Tomatoes, Cucumber: Negligible points
  • Vinaigrette (1 tbsp – e.g., 50 kcal, 4g fat, 1g sat fat, 2g sugar, 100mg sodium)

Points Plus Calculation (Approximate):

Points from Chicken (0) + Points from Veggies (0) + Points from Vinaigrette:

Vinaigrette: (50/50) + (1/9) + (2/15) - (0/3) - (0/10) = 1 + 0.11 + 0.13 - 0 - 0 = 1.24

Rounded: **1 Point Plus** for the vinaigrette. Total Salad Points Plus: **1 Point**.

Freestyle Calculation (Approximate):

Zero-Point Foods (Chicken, Veggies) + Points from Vinaigrette:

Vinaigrette: (50/40) + (1/12) + (2/15) = 1.25 + 0.08 + 0.13 = 1.46

Rounded: **2 Freestyle Points** for the vinaigrette. Total Salad Points Freestyle: **2 Points**.

Interpretation: Here, Freestyle assigns slightly more points to the vinaigrette due to a different calorie/fat weighting. This highlights how even with zero-point foods, the accompanying elements are calculated differently.

Example 2: A Small Yogurt with Granola

Consider a single-serving container of plain Greek yogurt with a serving of granola.

Scenario 2a: Plain Greek Yogurt (5.3 oz / 150g)**

  • Calories: 100 kcal
  • Saturated Fat: 0.5 g
  • Sugar: 7 g
  • Sodium: 60 mg
  • Protein: 18 g
  • Fiber: 0 g

Points Plus Calculation (Approximate):

(100/50) + (0.5/9) + (7/15) - (18/3) - (0/10) = 2 + 0.06 + 0.47 - 6 - 0 = -3.47

Rounded: **-3 Points Plus**. Again, likely floored to **0 Points Plus**.

Freestyle Calculation (Approximate):

Plain Greek yogurt is a Zero-Point Food under Freestyle.

Interpretation: Similar to lean protein, plain Greek yogurt is a cornerstone zero-point food in Freestyle, offering significant flexibility.

Scenario 2b: Yogurt with 1/4 cup Granola**

  • Greek Yogurt (as above)
  • Granola (1/4 cup – e.g., 120 kcal, 4g fat, 1g sat fat, 6g sugar, 40mg sodium, 2g protein, 2g fiber)

Points Plus Calculation (Approximate):

Points from Yogurt (0) + Points from Granola:

Granola: (120/50) + (1/9) + (6/15) - (2/3) - (2/10) = 2.4 + 0.11 + 0.4 - 0.67 - 0.2 = 2.54

Rounded: **3 Points Plus** for the granola. Total Yogurt & Granola: **3 Points**.

Freestyle Calculation (Approximate):

Zero-Point Foods (Yogurt) + Points from Granola:

Granola: (120/40) + (1/12) + (6/15) = 3 + 0.08 + 0.4 = 3.48

Rounded: **3 Freestyle Points** for the granola. Total Yogurt & Granola: **3 Points**.

Interpretation: In this case, the granola itself calculates to the same number of points under both systems, resulting in an identical total. This shows that while Freestyle introduces zero-point foods, the calculation for other items can still yield similar results, especially for calorie-dense, less nutrient-rich additions.

These examples underscore that the difference between Weight Watchers Points Plus calculator and Freestyle calculator lies mainly in the zero-point food list and subtle shifts in how nutrients are weighted for non-zero-point items. Freestyle's design is generally perceived as more forgiving and easier to adhere to for many members due to the expanded list of freely available foods.

How to Use This WW Points Comparison Calculator

This calculator is designed to be a straightforward tool for understanding the core differences between the Weight Watchers Points Plus and Freestyle point systems. By inputting the nutritional information of a food item, you can quickly see estimated point values and the discrepancy between the two programs. Follow these steps to get the most out of the calculator:

Step-by-Step Instructions:

  1. Locate Nutritional Information: Find the nutritional facts label for the food item you wish to analyze. This is typically found on the packaging of most processed or packaged foods. For whole foods, you can use reliable online nutritional databases.
  2. Input Values: Enter the data from the nutritional label into the corresponding fields on the calculator:
    • Calories (kcal): Enter the total calories per serving.
    • Saturated Fat (g): Enter the grams of saturated fat per serving.
    • Sugar (g): Enter the grams of total sugar per serving.
    • Sodium (mg): Enter the milligrams of sodium per serving.
    • Protein (g): Enter the grams of protein per serving.
    • Fiber (g): Enter the grams of dietary fiber per serving.
    Ensure you are entering values for a single serving as indicated on the label.
  3. Calculate: Click the "Calculate Points" button. The calculator will immediately process the inputs and display the results.
  4. Review Results:
    • Points Plus Estimated: Shows the approximate point value under the Points Plus system.
    • Freestyle Estimated: Shows the approximate point value under the Freestyle system.
    • Points Difference: Displays the numerical difference between the Freestyle and Points Plus estimates. A positive number means Freestyle is higher; a negative number means Points Plus is higher.
    • Difference Explained: A brief note on why the difference might exist (e.g., due to zero-point foods in Freestyle).
    • Breakdown Table: See how each nutritional component contributed to the points in both systems.
    • Chart: A visual representation comparing the estimated points.
  5. Understand Assumptions: Read the "Key Assumptions" section to understand the general principles behind each system and the limitations of the calculation.
  6. Reset: If you want to analyze a different food item, click the "Reset" button to clear the fields and start over with default values.

How to Read Results and Make Decisions:

  • Zero-Point Foods: If your input values are typical for a zero-point food under Freestyle (e.g., lean protein, fruits, non-starchy vegetables), you will likely see 0 points for Freestyle and a calculated point value for Points Plus. This emphasizes Freestyle's focus on these healthier staples.
  • Higher Points in Freestyle: Sometimes, Freestyle might assign slightly higher points to certain items (like sugary dressings or high-fat items) due to its adjusted calorie and fat coefficients. Notice this difference and consider if a lower-point alternative exists.
  • Lower Points in Freestyle: For many standard meals, Freestyle might result in similar or slightly fewer points than Points Plus, especially if they contain moderate protein and fiber.
  • Guidance: Use the comparison to inform your food choices. If you're on the Freestyle plan, understanding which foods are zero-point is paramount. If you're comparing historical data or understanding the evolution, seeing the difference in calculation methodology is key.

This calculator is a powerful educational tool to demystify the difference between Weight Watchers Points Plus calculator and Freestyle calculator and empower your weight loss journey.

Key Factors That Affect WW Points Results

While the core formulas for Weight Watchers Points Plus and Freestyle provide a framework, several factors can influence the actual point values assigned and, consequently, your weight loss journey. Understanding these nuances helps in accurately utilizing the program and this comparison calculator.

  1. Zero-Point Food List Specificity (Freestyle): The single most significant factor affecting Freestyle calculations is the extensive list of zero-point foods. This list includes fruits, vegetables, lean proteins (like chicken breast, fish, turkey, eggs, beans, lentils), corn, and more. If a food item falls under this category, its calculated points are irrelevant; it's simply 0. This dramatically impacts daily point budgets and food choices.
  2. Nutrient Density vs. Calorie Density: Points Plus explicitly rewarded nutrient density (protein, fiber) by reducing points. Freestyle shifted focus towards whole foods, where nutrient density often comes with fewer points or zero points. Foods that are calorie-dense but low in nutrients (e.g., processed snacks, sugary drinks) tend to accumulate points quickly in both systems, but especially in Freestyle's simplified calculation for non-zero-point items.
  3. Serving Size Accuracy: Both calculators and the WW program rely heavily on accurate serving size information. If you miscalculate or estimate a serving size (e.g., assuming 1 tbsp of dressing is actually 2 tbsp), your point total will be incorrect. This impacts both Points Plus and Freestyle estimations.
  4. Processing Level of Foods: Highly processed foods often contain added sugars, unhealthy fats, and sodium, all of which increase point values. While Freestyle aims to encourage whole foods through its zero-point list, processed items that aren't zero-point can rack up points quickly due to their nutritional profiles. For example, a heavily processed "lean" protein bar might have more points than plain chicken breast.
  5. Added Sugars and Fats: Both systems penalize added sugars and saturated fats. However, Freestyle's simplified formula for non-zero-point foods might increase the relative "cost" of certain calorie-dense items that are high in these components, compared to Points Plus's more balanced approach. Always check labels for hidden sugars and fats.
  6. Sodium Content: While sodium contributes to points in Points Plus, it doesn't directly factor into the simplified Freestyle calculation for most foods. However, high sodium intake can lead to water retention, which can temporarily affect scale weight, even if point values are lower. This is a nutritional consideration beyond the direct point calculation.
  7. Regional and Program Updates: Weight Watchers periodically updates its plans and point systems. The exact coefficients used in the formulas might change, and the zero-point food list can be modified. Therefore, these calculators provide estimates based on the most commonly understood versions of Points Plus and Freestyle. Always refer to official WW materials for the most current information.
  8. Individual Weight Loss Goals and Metabolism: While not directly part of the point calculation, the number of points assigned is meant to fit within a daily budget tailored to individual weight loss goals and metabolism. The effectiveness of either system depends on adhering to the assigned budget and making healthy choices within it.

Understanding these factors helps explain why a food might calculate differently or why certain choices are more advantageous within the difference between Weight Watchers Points Plus calculator and Freestyle calculator context.

Frequently Asked Questions (FAQ)

Q1: Was the Points Plus system completely replaced by Freestyle?

A1: Yes, the Points Plus system was officially retired when WW launched the Freestyle program. Current WW members follow the Freestyle plan or subsequent iterations, not Points Plus.

Q2: Can I still calculate Points Plus for foods?

A2: You can use this calculator for an approximation, but WW no longer officially supports or provides the Points Plus calculation method. This tool is primarily for comparison and understanding historical context.

Q3: Are all fruits and vegetables zero points in Freestyle?

A3: While most fruits and non-starchy vegetables are zero points, there are a few exceptions. For instance, corn, peas, and potatoes (including sweet potatoes) typically have assigned point values under Freestyle.

Q4: Does sodium affect points in the Freestyle program?

A4: No, sodium is not a direct factor in the Freestyle point calculation formula for non-zero-point foods. However, managing sodium intake is still recommended for overall health.

Q5: How do I calculate points for restaurant meals?

A5: This calculator requires specific nutritional information. For restaurant meals, you'll need to find nutritional details from the restaurant's website or use their available data. If unavailable, you'll have to estimate based on similar dishes and ingredients, which may be less accurate.

Q6: Why does my calculated Freestyle point value differ from what I remember?

A6: WW formulas are proprietary and can change. Also, serving sizes and exact nutrient breakdowns vary. This calculator uses common approximations. For precise values, always refer to the official WW app or resources.

Q7: Can I use this calculator to track my daily points?

A7: This calculator is designed for comparison and understanding the difference between Weight Watchers Points Plus calculator and Freestyle calculator. For daily tracking, it's best to use the official WW app, which has an extensive database and scanner for accurate, real-time point tracking.

Q8: Which system is "better" for weight loss?

A8: Both systems have proven effective for millions. Freestyle is generally considered more flexible and easier to adhere to due to the large zero-point food list, potentially leading to faster perceived progress for some. However, success ultimately depends on individual adherence, lifestyle, and making healthy choices within the assigned point budget.

Q9: Does the calculator account for different WW plans (e.g., Green, Blue, Purple)?

A9: No, this calculator focuses specifically on the historical calculation differences between the Points Plus system and the Freestyle system. The Green, Blue, and Purple plans within Freestyle primarily adjust the number of daily points and the length of the zero-point food list, but the core calculation methodology for non-zero-point items remains similar to Freestyle.

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

function validateInput(id, errorId, minValue = 0, maxValue = Infinity) { var input = document.getElementById(id); var errorElement = document.getElementById(errorId); var value = input.value.trim(); if (value === ") { errorElement.textContent = 'This field cannot be empty.'; return false; } var numberValue = parseFloat(value); if (isNaN(numberValue)) { errorElement.textContent = 'Please enter a valid number.'; return false; } if (numberValue maxValue) { errorElement.textContent = 'Value is too high.'; return false; } errorElement.textContent = "; // Clear error return true; } function calculatePoints() { var isValid = true; isValid &= validateInput('calories', 'caloriesError'); isValid &= validateInput('saturatedFat', 'saturatedFatError'); isValid &= validateInput('sugar', 'sugarError'); isValid &= validateInput('sodium', 'sodiumError'); isValid &= validateInput('protein', 'proteinError'); isValid &= validateInput('fiber', 'fiberError'); if (!isValid) { document.getElementById('results').style.display = 'none'; return; } var calories = parseFloat(document.getElementById('calories').value); var saturatedFat = 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); var fiber = parseFloat(document.getElementById('fiber').value); // Points Plus Calculation (Approximate) var ppPoints = (calories / 50) + (saturatedFat / 9) + (sugar / 15) – (protein / 3) – (fiber / 10); var ppPointsRounded = Math.round(ppPoints); if (ppPointsRounded < 0) ppPointsRounded = 0; // Floor at 0 // Freestyle Calculation (Approximate for non-zero point foods) // Primarily focusing on Calories, Sat Fat, Sugar. Protein/Fiber removed from direct calculation. var fsPoints = (calories / 40) + (saturatedFat / 12) + (sugar / 15); var fsPointsRounded = Math.round(fsPoints); if (fsPointsRounded 0) { differenceExplanation = "Freestyle points are higher."; } else if (pointsDifference = 15 && calories <= 150 && saturatedFat <= 2 && sugar = 2 && calories <= 150 && saturatedFat = 2) || (calories <= 15 && saturatedFat <= 0.5 && sugar <= 2 && protein 0 && fsPointsRounded === 0) { differenceExplanation = "Freestyle is zero points (typical for lean protein/veg)."; } else if (fsPointsRounded === 0 && ppPointsRounded === 0) { differenceExplanation = "Both systems approximate zero points."; } else if (fsPointsRounded === 0 && ppPointsRounded > 0) { differenceExplanation = "Freestyle is zero points."; } else if (ppPointsRounded === 0 && fsPointsRounded > 0) { differenceExplanation = "Points Plus is zero points (less common)."; } document.getElementById('pointsDifference').textContent = pointsDifference; document.getElementById('pointsPlusValue').textContent = ppPointsRounded; document.getElementById('freestyleValue').textContent = fsPointsRounded; document.getElementById('differenceExplanation').textContent = differenceExplanation; document.getElementById('results').style.display = 'block'; // Update table document.getElementById('ppCalories').textContent = Math.round(calories / 50); document.getElementById('ppSatFat').textContent = Math.round(saturatedFat / 9); document.getElementById('ppSugar').textContent = Math.round(sugar / 15); document.getElementById('ppSodium').textContent = Math.round(sodium / 15); // Note: Sodium contribution is often simplified or capped in PP document.getElementById('ppProtein').textContent = Math.round(-protein / 3); document.getElementById('ppFiber').textContent = Math.round(-fiber / 10); document.getElementById('fsCalories').textContent = Math.round(calories / 40); document.getElementById('fsSatFat').textContent = Math.round(saturatedFat / 12); document.getElementById('fsSugar').textContent = Math.round(sugar / 15); document.getElementById('fsSodium').textContent = '–'; // Not directly factored in Freestyle document.getElementById('fsProtein').textContent = '–'; // Not directly factored in Freestyle document.getElementById('fsFiber').textContent = '–'; // Not directly factored in Freestyle // Update chart updateChart(ppPointsRounded, fsPointsRounded); } function updateChart(ppValue, fsValue) { var ctx = document.getElementById('pointsChart').getContext('2d'); // Destroy previous chart instance if it exists if (window.myChart) { window.myChart.destroy(); } // Create a new chart window.myChart = new Chart(ctx, { type: 'bar', // Using bar chart for comparison data: { labels: ['Points Plus', 'Freestyle'], datasets: [{ label: 'Estimated Points', data: [ppValue, fsValue], backgroundColor: [ 'rgba(0, 74, 153, 0.6)', // Points Plus color 'rgba(40, 167, 69, 0.6)' // Freestyle color ], borderColor: [ 'rgba(0, 74, 153, 1)', 'rgba(40, 167, 69, 1)' ], borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Estimated Points' } } }, plugins: { title: { display: true, text: 'Estimated Points Comparison: Points Plus vs. Freestyle' }, legend: { display: false // Labels on x-axis are clear enough } } } }); } function resetInputs() { document.getElementById('calories').value = 100; document.getElementById('saturatedFat').value = 5; document.getElementById('sugar').value = 10; document.getElementById('sodium').value = 200; document.getElementById('protein').value = 10; document.getElementById('fiber').value = 2; // Clear errors document.getElementById('caloriesError').textContent = "; document.getElementById('saturatedFatError').textContent = "; document.getElementById('sugarError').textContent = "; document.getElementById('sodiumError').textContent = "; document.getElementById('proteinError').textContent = "; document.getElementById('fiberError').textContent = "; // Clear results and hide document.getElementById('pointsDifference').textContent = '–'; document.getElementById('pointsPlusValue').textContent = '–'; document.getElementById('freestyleValue').textContent = '–'; document.getElementById('differenceExplanation').textContent = '–'; document.getElementById('results').style.display = 'none'; // Reset table document.getElementById('ppCalories').textContent = '–'; document.getElementById('ppSatFat').textContent = '–'; document.getElementById('ppSugar').textContent = '–'; document.getElementById('ppSodium').textContent = '–'; document.getElementById('ppProtein').textContent = '–'; document.getElementById('ppFiber').textContent = '–'; document.getElementById('fsCalories').textContent = '–'; document.getElementById('fsSatFat').textContent = '–'; document.getElementById('fsSugar').textContent = '–'; document.getElementById('fsSodium').textContent = '–'; document.getElementById('fsProtein').textContent = '–'; document.getElementById('fsFiber').textContent = '–'; // Reset chart if (window.myChart) { window.myChart.destroy(); window.myChart = null; // Clear the reference } var canvas = document.getElementById('pointsChart'); if (canvas) { var ctx = canvas.getContext('2d'); ctx.clearRect(0, 0, canvas.width, canvas.height); // Clear canvas content } } // Initial calculation on page load with default values document.addEventListener('DOMContentLoaded', function() { var canvas = document.getElementById('pointsChart'); canvas.width = 600; // Set a default width canvas.height = 300; // Set a default height calculatePoints(); }); // Dummy Chart.js library inclusion for canvas chart // In a real WordPress environment, you'd enqueue this script properly. // For this standalone HTML, we assume Chart.js is available or include it. // Since external libraries are forbidden, we'll simulate it: // If this were a real deployment, you'd need: // For this exercise, assume Chart.js is globally available. // If Chart.js is not available, the chart will not render. // Mock Chart object if Chart.js isn't actually loaded, to prevent errors if (typeof Chart === 'undefined') { window.Chart = function() { console.warn("Chart.js library not loaded. Chart will not render."); this.destroy = function() {}; // Mock destroy method }; // Add a placeholder context method to prevent errors if canvas context is requested if (HTMLCanvasElement.prototype.getContext === undefined) { HTMLCanvasElement.prototype.getContext = function() { return { fillRect: function(){}, strokeRect: function(){}, clearRect: function(){} }; }; } }

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