Calories in Smoothie Calculator

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Calories in Smoothie Calculator

Quickly estimate the total calories in your homemade smoothie by entering the ingredients and their quantities. Understand the nutritional impact of your blended creations.

Smoothie Calorie Calculator

Enter the weight of the fruit in grams.
Approximate calories for 100g of this fruit (e.g., Banana is ~89 kcal/100g).
Enter the weight of the vegetable in grams.
Approximate calories for 100g of this vegetable (e.g., Spinach is ~23 kcal/100g).
Enter the volume of liquid in milliliters.
Approximate calories for 100ml of this liquid (e.g., Unsweetened Almond Milk is ~15 kcal/100ml).
Enter the weight in grams or an estimated scoop equivalent.
Enter the total calories for the entire amount of the add-in.

Your Smoothie's Estimated Calories

— kcal
Fruit Calories: — kcal
Vegetable Calories: — kcal
Liquid Calories: — kcal
Add-in Calories: — kcal
Formula: Total Calories = (Fruit Amt / 100 * Fruit Cal/100g) + (Veg Amt / 100 * Veg Cal/100g) + (Liquid Amt / 100 * Liquid Cal/100ml) + Add-in Calories
Results copied!

Calorie Breakdown by Ingredient

Ingredient Calorie Summary
Ingredient Type Amount Calories (Total)
Fruit –g — kcal
Vegetable –g — kcal
Liquid Base –ml — kcal
Add-in –g — kcal
Total — kcal

What is the Calories in Smoothie Calculator?

{primary_keyword} is a straightforward online tool designed to help individuals quickly estimate the total calorie content of their homemade smoothies. By inputting the specific ingredients used and their respective quantities, the calculator provides a clear caloric breakdown, empowering users to make informed dietary choices. This tool is invaluable for anyone monitoring their calorie intake, whether for weight management, fitness goals, or general health awareness. It simplifies the complex task of calculating calories from multiple components, making healthy eating more accessible and less guesswork.

Who Should Use the Calories in Smoothie Calculator?

The {primary_keyword} is beneficial for a wide range of individuals, including:

  • Health-Conscious Individuals: Those actively tracking their daily caloric intake for weight loss, maintenance, or gain.
  • Fitness Enthusiasts: Athletes and gym-goers who need to fuel their bodies appropriately, balancing macronutrients and calories.
  • Dieting Individuals: People following specific dietary plans (e.g., low-carb, high-protein) who need to adhere to strict calorie limits.
  • Smoothie Lovers: Anyone who frequently enjoys homemade smoothies and wants to understand their nutritional composition better.
  • Parents: Those looking to create healthy, calorie-controlled snacks or meals for their children.
  • People with Specific Dietary Needs: Individuals managing conditions like diabetes who need to monitor sugar and calorie intake.

Common Misconceptions About Smoothie Calories

It's a common mistake to assume all smoothies are inherently healthy or low in calories. Several misconceptions exist:

  • "Fruit is healthy, so more is better": While fruits are nutritious, their natural sugars contribute significantly to calories. Overconsumption can lead to a very high-calorie smoothie.
  • "Smoothies are always a light meal": Depending on the ingredients (e.g., added sweeteners, nut butters, full-fat dairy, large fruit portions), a smoothie can easily exceed the calorie count of a balanced meal.
  • "Liquid calories don't count": Calories from juices, sweetened milks, and other liquid bases can add up rapidly and should be accounted for.
  • "Natural sweeteners are calorie-free": Ingredients like honey, maple syrup, and agave nectar are still sources of sugar and calories, often comparable to refined sugar.

Utilizing the {primary_keyword} helps to demystify these assumptions by providing concrete numbers.

Calories in Smoothie Calculator Formula and Mathematical Explanation

The {primary_keyword} uses a straightforward additive formula to calculate the total estimated calories. It sums the caloric contributions of each primary ingredient category: fruits, vegetables, liquid base, and any optional add-ins.

Step-by-Step Derivation:

  1. Calculate Fruit Calories: Determine the calories contributed by the fruit. This is done by taking the amount of fruit in grams, dividing by 100 (to find out how many 100g servings there are), and then multiplying by the calories per 100g of that fruit.
  2. Calculate Vegetable Calories: Similar to fruits, calculate the calories from vegetables using their weight and calorie density per 100g.
  3. Calculate Liquid Base Calories: Determine the calories from the liquid base. This involves taking the volume in milliliters, dividing by 100, and multiplying by the calories per 100ml of the liquid.
  4. Add Optional Add-in Calories: If an add-in is included (like protein powder, seeds, or nut butter), its total calorie contribution is added directly. For simplicity in this calculator, we ask for the direct calorie amount for the specified quantity of the add-in.
  5. Sum Total Calories: Add the calculated calories from fruits, vegetables, liquid base, and add-ins together to get the final estimated total calorie count for the smoothie.

Variables Explanation:

The calculator relies on the following key variables:

Variable Definitions
Variable Meaning Unit Typical Range
Fruit Amount The total weight of the primary fruit(s) used in the smoothie. Grams (g) 0 – 500g
Fruit Calories per 100g The estimated caloric content for every 100 grams of the specific fruit. Kilocalories (kcal) per 100g 20 – 150 kcal/100g (varies greatly by fruit type)
Vegetable Amount The total weight of the primary vegetable(s) used. Grams (g) 0 – 200g
Vegetable Calories per 100g The estimated caloric content for every 100 grams of the specific vegetable. Kilocalories (kcal) per 100g 10 – 100 kcal/100g (typically lower than fruits)
Liquid Base Amount The total volume of the liquid base used. Milliliters (ml) 100 – 1000ml
Liquid Calories per 100ml The estimated caloric content for every 100 milliliters of the liquid base. Kilocalories (kcal) per 100ml 0 – 100 kcal/100ml (e.g., water is 0, full-fat milk is higher)
Add-in Calories The total estimated calories for all optional additions (protein powder, seeds, nut butters, etc.). Kilocalories (kcal) 0 – 500 kcal
Total Calories The sum of calories from all smoothie components. Kilocalories (kcal) 50 – 1500+ kcal

Practical Examples (Real-World Use Cases)

Let's look at a couple of scenarios to see the {primary_keyword} in action:

Example 1: A Standard Berry and Spinach Smoothie

Scenario: Sarah is making her morning smoothie for post-workout recovery.

  • Fruit: 150g Mixed Berries (approx. 80 kcal/100g)
  • Vegetable: 50g Spinach (approx. 23 kcal/100g)
  • Liquid Base: 250ml Unsweetened Almond Milk (approx. 15 kcal/100ml)
  • Add-in: 1 scoop (30g) Whey Protein Powder (approx. 120 kcal)

Calculation using the calculator:

  • Fruit Calories: (150g / 100) * 80 kcal/100g = 120 kcal
  • Vegetable Calories: (50g / 100) * 23 kcal/100g = 11.5 kcal
  • Liquid Calories: (250ml / 100) * 15 kcal/100ml = 37.5 kcal
  • Add-in Calories: 120 kcal
  • Total Calories: 120 + 11.5 + 37.5 + 120 = 289 kcal

Interpretation: Sarah's post-workout smoothie is around 289 calories, a reasonable amount for recovery fuel without being excessively high.

Example 2: A Creamy Tropical Smoothie with Added Nut Butter

Scenario: Mark is making a more indulgent smoothie as a healthy snack.

  • Fruit: 100g Banana (approx. 89 kcal/100g), 100g Mango (approx. 60 kcal/100g)
  • Vegetable: 0g (None added)
  • Liquid Base: 300ml Coconut Milk (Light, approx. 50 kcal/100ml)
  • Add-in: 2 tbsp (32g) Peanut Butter (approx. 190 kcal)

Calculation using the calculator:

  • Fruit Calories: ((100g + 100g) / 100) * (weighted avg or sum – let's simplify for calculator input: assume user inputs avg for total fruit): Let's use average of berries and banana for simplicity here, or user could input two fruits. For this example, let's assume user inputs total fruit grams and an average cal/100g if they combine. Or better, the calculator takes *one* fruit, *one* veg, *one* liquid, *one* add-in. For simplicity, let's adjust Example 2 for the calculator's current fields:
  • Adjusted Example 2 Ingredients:
  • Fruit: 200g Banana (approx. 89 kcal/100g)
  • Vegetable: 0g
  • Liquid Base: 300ml Light Coconut Milk (approx. 50 kcal/100ml)
  • Add-in: 32g Peanut Butter (approx. 190 kcal)
  • Fruit Calories: (200g / 100) * 89 kcal/100g = 178 kcal
  • Vegetable Calories: (0g / 100) * 23 kcal/100g = 0 kcal
  • Liquid Calories: (300ml / 100) * 50 kcal/100ml = 150 kcal
  • Add-in Calories: 190 kcal
  • Total Calories: 178 + 0 + 150 + 190 = 518 kcal

Interpretation: Mark's smoothie is quite calorie-dense (518 kcal) due to the banana, coconut milk, and peanut butter. This might be suitable as a meal replacement or for someone needing higher energy intake, but less so for a light snack.

How to Use This Calories in Smoothie Calculator

Using the {primary_keyword} is simple and intuitive. Follow these steps:

  1. Identify Your Ingredients: List all the components you plan to include in your smoothie. This includes fruits, vegetables, liquids, and any supplements or extras like protein powder, nut butters, seeds, or sweeteners.
  2. Measure Accurately: Weigh your solid ingredients (fruits, vegetables, powders, etc.) in grams. Measure your liquids in milliliters (ml). Precision is key for an accurate estimate.
  3. Find Calorie Information: Look up the approximate calories per 100g (for solids) or per 100ml (for liquids). This information can often be found on product packaging, nutrition apps (like MyFitnessPal or Cronometer), or reliable online sources. For generic items like bananas or spinach, standard values are usually available.
  4. Enter Data into the Calculator:
    • Input the name of each ingredient (optional, for clarity).
    • Enter the measured amount (in grams or ml).
    • Enter the corresponding calorie density (calories per 100g or 100ml).
    • For add-ins like protein powder or nut butter, you can enter the total calories directly if the amount is difficult to standardize in grams.
  5. Click 'Calculate Calories': The tool will instantly process your inputs.

How to Read Your Results:

  • Total Calories: The prominent main result shows the estimated total calorie count for your entire smoothie.
  • Intermediate Values: You'll see a breakdown of calories contributed by each ingredient category (fruit, vegetable, liquid, add-in). This helps identify which components are contributing the most calories.
  • Calorie Breakdown Chart: A visual representation (pie or bar chart) shows the percentage contribution of each ingredient type to the total calories.
  • Ingredient Summary Table: A clear table summarizes the amounts and calculated calories for each category, along with the final total.

Decision-Making Guidance:

Use the results to adjust your smoothie recipe:

  • Too high in calories? Reduce high-calorie fruits (like mangoes, bananas, dates), limit nut butters and seeds, opt for lower-calorie liquids (water, unsweetened plant milks), or reduce portion sizes.
  • Need more calories? Add calorie-dense healthy fats like avocado, nuts, seeds, or use higher-calorie liquids like whole milk or full-fat coconut milk.
  • Balancing nutrients: While this calculator focuses on calories, consider adding more vegetables or protein sources to ensure a well-rounded nutritional profile. Explore our related tools for more insights.

Key Factors That Affect Calories in Smoothie Results

Several factors significantly influence the final calorie count of your smoothie. Understanding these helps in accurately using the calculator and adjusting recipes:

  1. Fruit Selection and Quantity: Different fruits have vastly different calorie densities. For example, dates and bananas are significantly higher in calories than berries or melons. Using larger quantities of any fruit will increase total calories. This is why accurate measurement and selection of low-calorie fruits are crucial.
  2. Liquid Base Choice: The type of liquid used is a major calorie contributor. Water has zero calories, while unsweetened plant milks (almond, soy) are relatively low. However, sweetened versions, dairy milk (especially whole milk), and richer plant milks (coconut milk) can add substantial calories.
  3. Added Fats and Sugars: Ingredients like nut butters, seeds (chia, flax, hemp), avocado, honey, maple syrup, and sweetened yogurts significantly boost the calorie count. Even seemingly healthy fats are calorie-dense (9 kcal per gram).
  4. Protein Powders and Supplements: While beneficial for nutrition, many protein powders contain added sugars, flavorings, and calories. The specific type and serving size will impact the total. Always check the nutritional label.
  5. Portion Sizes: Simply put, more ingredients equal more calories. Be mindful of the serving sizes you are adding. A "small" scoop of nut butter might be 1 tablespoon, while a "large" scoop could be 3 or 4, drastically changing the caloric outcome.
  6. Accuracy of Nutritional Data: The calculator relies on the calorie data you input. Generic values for fruits and vegetables are averages. Specific varieties, ripeness, and brands can slightly alter these figures. For packaged goods, always use the label information if available. This is where precise nutritional data becomes important.
  7. Hidden Sugars: Some ingredients, like flavored yogurts or pre-made smoothie mixes, can contain significant amounts of added sugars that contribute calories without much nutritional benefit. Being aware of these can help you choose better alternatives.

Frequently Asked Questions (FAQ)

Q1: Does this calculator include calories from ice?

A1: No, ice is primarily water and contributes negligible calories. This calculator focuses on the caloric content of food and liquid ingredients.

Q2: Can I input multiple fruits or vegetables?

A2: The current calculator is designed for one primary fruit, one vegetable, one liquid base, and one add-in for simplicity. For multiple ingredients of the same type (e.g., banana and berries), you can either calculate them separately and sum the results, or find an average calorie density per 100g for the combined fruit mixture and input that. Alternatively, use multiple runs of the calculator and sum the totals.

Q3: What if I don't know the exact calories per 100g/ml?

A3: Use reliable online nutrition databases (like USDA FoodData Central), reputable health websites, or the nutritional information on the product packaging. For common fruits/veg, a quick search like "calories in 100g banana" usually provides a good estimate. Remember, accuracy improves with better data.

Q4: How do I calculate calories for scoops (like protein powder)?

A4: Check the product packaging for the serving size (often in grams or tablespoons) and the corresponding calorie count. If it lists calories per scoop, use that directly. If it lists calories per gram, weigh your scoop and calculate accordingly. For example, if a scoop is 30g and the powder is 400 kcal/100g, the scoop is (30/100) * 400 = 120 kcal.

Q5: Is this calculator accurate for weight loss diets?

A5: Yes, it provides an estimate crucial for calorie tracking. However, individual metabolic rates and absorption can vary. It's a tool to guide your intake, not a definitive measure of your body's response.

Q6: Can I use this to calculate calories for meal replacement shakes?

A6: Absolutely. Many meal replacement shakes are essentially designed as smoothies. Inputting the specific ingredients (if homemade) or the nutritional information of a pre-made shake can give you a clear calorie count. This aligns with understanding meal replacement strategy.

Q7: What's the difference between calories and kilocalories?

A7: In nutrition, the terms "calorie" and "kilocalorie" (kcal) are used interchangeably. When you see "calories" on food labels or in calculators like this one, it almost always refers to kilocalories. So, 100 calories = 100 kilocalories.

Q8: Does the calculator account for fiber calories?

A8: Standard calorie calculations typically use the Atwater system, which accounts for the average energy content of macronutrients (protein, carbs, fat). While fiber is a carbohydrate, it's not fully digestible, and the Atwater system implicitly accounts for this average digestibility. So, yes, the calculated calories are the metabolically available energy.

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var fruitAmount = document.getElementById('fruitAmount').value; var fruitCaloriesPer100g = document.getElementById('fruitCaloriesPer100g').value; var vegName = document.getElementById('vegName').value; var vegAmount = document.getElementById('vegAmount').value; var vegCaloriesPer100g = document.getElementById('vegCaloriesPer100g').value; var liquidBase = document.getElementById('liquidBase').value; var liquidAmount = document.getElementById('liquidAmount').value; var liquidCaloriesPer100ml = document.getElementById('liquidCaloriesPer100ml').value; var addInName = document.getElementById('addInName').value; var addInAmount = document.getElementById('addInAmount').value; // Not used in calculation directly, only for table display var addInCalories = document.getElementById('addInCalories').value; // Validation var isValid = true; isValid &= validateInput('fruitAmount', fruitAmount, 0, 1000, 'Fruit Amount'); isValid &= validateInput('fruitCaloriesPer100g', fruitCaloriesPer100g, 0, 500, 'Fruit Calories per 100g'); isValid &= validateInput('vegAmount', vegAmount, 0, 500, 'Vegetable Amount'); isValid &= validateInput('vegCaloriesPer100g', vegCaloriesPer100g, 0, 200, 'Vegetable Calories per 100g'); isValid &= validateInput('liquidAmount', liquidAmount, 0, 2000, 'Liquid Amount'); isValid &= validateInput('liquidCaloriesPer100ml', liquidCaloriesPer100ml, 0, 200, 'Liquid Calories per 100ml'); isValid &= validateInput('addInCalories', addInCalories, 0, 1000, 'Add-in Calories'); if (!isValid) { document.getElementById('totalCalories').innerText = "– kcal"; document.getElementById('fruitCalories').querySelector('span').innerText = "– kcal"; document.getElementById('vegCalories').querySelector('span').innerText = "– kcal"; document.getElementById('liquidCalories').querySelector('span').innerText = "– kcal"; document.getElementById('addInTotalCalories').querySelector('span').innerText = "– kcal"; // Clear table document.getElementById('tableFruitAmount').innerText = "–g"; document.getElementById('tableFruitCalories').innerText = "– kcal"; document.getElementById('tableVegAmount').innerText = "–g"; document.getElementById('tableVegCalories').innerText = "– kcal"; document.getElementById('tableLiquidAmount').innerText = "–ml"; document.getElementById('tableLiquidCalories').innerText = "– kcal"; document.getElementById('tableAddInAmount').innerText = "–g"; document.getElementById('tableAddInCalories').innerText = "– kcal"; document.getElementById('tableTotalCalories').innerText = "– kcal"; return; } // Convert inputs to numbers var fAmount = parseFloat(fruitAmount); var fCalPer100g = parseFloat(fruitCaloriesPer100g); var vAmount = parseFloat(vegAmount); var vCalPer100g = parseFloat(vegCaloriesPer100g); var lAmount = parseFloat(liquidAmount); var lCalPer100ml = parseFloat(liquidCaloriesPer100ml); var addInCal = parseFloat(addInCalories); // Calculate calories for each component var calculatedFruitCalories = (fAmount / 100) * fCalPer100g; var calculatedVegCalories = (vAmount / 100) * vCalPer100g; var calculatedLiquidCalories = (lAmount / 100) * lCalPer100ml; // Ensure calculations don't result in NaN or Infinity if inputs were weirdly validated calculatedFruitCalories = isNaN(calculatedFruitCalories) || !isFinite(calculatedFruitCalories) ? 0 : calculatedFruitCalories; calculatedVegCalories = isNaN(calculatedVegCalories) || !isFinite(calculatedVegCalories) ? 0 : calculatedVegCalories; calculatedLiquidCalories = isNaN(calculatedLiquidCalories) || !isFinite(calculatedLiquidCalories) ? 0 : calculatedLiquidCalories; addInCal = isNaN(addInCal) || !isFinite(addInCal) ? 0 : addInCal; // Calculate total calories var totalCalories = calculatedFruitCalories + calculatedVegCalories + calculatedLiquidCalories + addInCal; // Display results document.getElementById('totalCalories').innerText = Math.round(totalCalories) + " kcal"; document.getElementById('fruitCalories').querySelector('span').innerText = Math.round(calculatedFruitCalories) + " kcal"; document.getElementById('vegCalories').querySelector('span').innerText = Math.round(calculatedVegCalories) + " kcal"; document.getElementById('liquidCalories').querySelector('span').innerText = Math.round(calculatedLiquidCalories) + " kcal"; document.getElementById('addInTotalCalories').querySelector('span').innerText = Math.round(addInCal) + " kcal"; // Update table document.getElementById('tableFruitAmount').innerText = fruitAmount + "g"; document.getElementById('tableFruitCalories').innerText = Math.round(calculatedFruitCalories) + " kcal"; document.getElementById('tableVegAmount').innerText = vegAmount + "g"; document.getElementById('tableVegCalories').innerText = Math.round(calculatedVegCalories) + " kcal"; document.getElementById('tableLiquidAmount').innerText = liquidAmount + "ml"; document.getElementById('tableLiquidCalories').innerText = Math.round(calculatedLiquidCalories) + " kcal"; document.getElementById('tableAddInAmount').innerText = addInAmount + "g"; // Display amount input document.getElementById('tableAddInCalories').innerText = Math.round(addInCal) + " kcal"; document.getElementById('tableTotalCalories').innerText = Math.round(totalCalories) + " kcal"; // Update chart updateChart( Math.round(calculatedFruitCalories), Math.round(calculatedVegCalories), Math.round(calculatedLiquidCalories), Math.round(addInCal) ); } function updateChart(fruitCal, vegCal, liquidCal, addInCal) { var ctx = document.getElementById('calorieBreakdownChart').getContext('2d'); // Destroy previous chart instance if it exists if (window.calorieChart) { window.calorieChart.destroy(); } window.calorieChart = new Chart(ctx, { type: 'pie', // Changed to pie for better ingredient breakdown visualization data: { labels: ['Fruit', 'Vegetable', 'Liquid Base', 'Add-ins'], datasets: [{ label: 'Calories', data: [fruitCal, vegCal, liquidCal, addInCal], backgroundColor: [ 'rgba(255, 99, 132, 0.7)', 'rgba(75, 192, 192, 0.7)', 'rgba(54, 162, 235, 0.7)', 'rgba(201, 203, 207, 0.7)' ], borderColor: [ 'rgba(255, 99, 132, 1)', 'rgba(75, 192, 192, 1)', 'rgba(54, 162, 235, 1)', 'rgba(201, 203, 207, 1)' ], borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: false, plugins: { legend: { position: 'top', }, title: { display: true, text: 'Calorie Distribution Across Ingredients' } } } }); } function resetCalculator() { document.getElementById('fruitName').value = 'Banana'; document.getElementById('fruitAmount').value = '150'; document.getElementById('fruitCaloriesPer100g').value = '89'; document.getElementById('vegName').value = 'Spinach'; document.getElementById('vegAmount').value = '50'; document.getElementById('vegCaloriesPer100g').value = '23'; document.getElementById('liquidBase').value = 'Almond Milk (Unsweetened)'; document.getElementById('liquidAmount').value = '240'; document.getElementById('liquidCaloriesPer100ml').value = '15'; document.getElementById('addInName').value = 'Whey Protein'; document.getElementById('addInAmount').value = '30'; document.getElementById('addInCalories').value = '120'; // Clear error messages var errorElements = document.querySelectorAll('.error-message'); for (var i = 0; i < errorElements.length; i++) { errorElements[i].textContent = ""; errorElements[i].classList.remove('visible'); } calculateCalories(); // Recalculate with defaults } function copyResults() { var totalCal = document.getElementById('totalCalories').innerText; var fruitCal = document.getElementById('fruitCalories').querySelector('span').innerText; var vegCal = document.getElementById('vegCalories').querySelector('span').innerText; var liquidCal = document.getElementById('liquidCalories').querySelector('span').innerText; var addInCal = document.getElementById('addInTotalCalories').querySelector('span').innerText; var formula = "Formula: Total Calories = (Fruit Amt / 100 * Fruit Cal/100g) + (Veg Amt / 100 * Veg Cal/100g) + (Liquid Amt / 100 * Liquid Cal/100ml) + Add-in Calories"; var resultText = "— Smoothie Calorie Calculation — \n\n" + "Total Estimated Calories: " + totalCal + "\n" + "Fruit Calories: " + fruitCal + "\n" + "Vegetable Calories: " + vegCal + "\n" + "Liquid Base Calories: " + liquidCal + "\n" + "Add-in Calories: " + addInCal + "\n\n" + formula; // Use a temporary textarea to copy text var textArea = document.createElement("textarea"); textArea.value = resultText; textArea.style.position = "fixed"; textArea.style.left = "-9999px"; document.body.appendChild(textArea); textArea.focus(); textArea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied!' : 'Copying failed'; var feedbackElement = document.getElementById('copyFeedback'); feedbackElement.innerText = msg; feedbackElement.style.display = 'block'; setTimeout(function() { feedbackElement.style.display = 'none'; }, 3000); } catch (err) { console.error('Fallback: Oops, unable to copy', err); var feedbackElement = document.getElementById('copyFeedback'); feedbackElement.innerText = 'Copying failed'; feedbackElement.style.display = 'block'; setTimeout(function() { feedbackElement.style.display = 'none'; }, 3000); } document.body.removeChild(textArea); } // Initial calculation on page load with default values document.addEventListener('DOMContentLoaded', function() { resetCalculator(); // Ensure chart can be drawn – requires canvas context var canvas = document.getElementById('calorieBreakdownChart'); if (canvas) { ctx = canvas.getContext('2d'); // Initialize chart with placeholder data or call calculateCalories() calculateCalories(); } else { console.error("Canvas element not found!"); } });

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