Panera Classic Sourdough
Nutrition Calculator
150 calories · 320mg sodium · Build your sandwich to see exactly what you're eating.
Nutrition Base Values
Calories
150
8% Daily Value
Total Fat
0g
Sat. Fat
0g
Cholesterol
0mg
Sodium
320mg
14% Daily Value
Total Carbs
31g
11% Daily Value
Fiber
1g
4% Daily Value
Sugars
0g
Protein
6g
12% Daily Value
* Percent Daily Values based on a 2,000 calorie diet.
🥪 Interactive Bread Portion Calculator
Most Panera bread nutritional data is listed for a single slice. Use this tool to double the macros if you are tracking a full two-slice sandwich.
🥖 Portion Calculator
Total Nutritional Value
150 cal
Bread Base: 150 cal
0g
Fat
31g
Carbs
6g
Protein
320mg
Sodium
📊 How Does It Compare? All Artisan Breads
| Bread Item | Serving Size | Cal | Fat | Carbs | Sodium |
|---|---|---|---|---|---|
| Artisan Ciabatta | Listed | 150 | 1.5g | 30g | 280mg |
| Asiago Cheese Focaccia | Listed | 150 | 3g | 24g | 320mg |
| Black Pepper Focaccia | Listed | 140 | 2g | 26g | 370mg |
| Brioche Roll | Listed | 210 | 7g | 31g | 310mg |
| ⭐Classic Sourdough | Listed | 150 | 0g | 31g | 320mg |
| Classic White Miche | Listed | 160 | 4g | 27g | 260mg |
| Country Rustic Sourdough | Listed | 130 | 0g | 28g | 240mg |
| French Baguette | Listed | 150 | 0g | 30g | 370mg |
| New England Roll | Listed | 250 | 4.5g | 44g | 440mg |
| Sourdough Bread Bowl | Listed | 670 | 4.5g | 130g | 1160mg |
| Tomato Basil Miche | Listed | 130 | 0g | 27g | 330mg |
| White Whole Grain | Listed | 130 | 0.5g | 25g | 290mg |
| Whole Grain Lahvash | Listed | 170 | 4g | 25g | 310mg |
| Breakfast Portion - Ciabatta | Listed | 200 | 2g | 38g | 360mg |
🏷️ Diet Compatibility Verdicts
Keto Diet
NOT COMPATIBLEDespite its lower glycemic index compared to white bread, sourdough still packs 31g of refined carbs per slice (62g for a sandwich). Avoid on Keto.
Protein Value
LOW PROTEINWith 6g of protein, it performs adequately for bread, but you must pair it with a lean protein (chicken, turkey) for real muscle-building macros.
Sodium Watch
MODERATEAt 320mg, the sodium is right in the middle. Not dangerously high like the bagel suite, but it adds up rapidly in a double-slice sandwich (640mg).
🔥 Burn It Off — Activity Equivalents
30 min
Walking
3.5 mph
14 min
Running
6 mph
19 min
Cycling
moderate
16 min
Swimming
laps
38 min
Yoga
flow
21 min
Weight Training
moderate
🩺 Dietitian's Take: When to Eat It & When to Skip It
✅ When It's a Smart Choice
- Lower Glycemic Impact: Due to the lactic acid produced during the sourdough fermentation process, this bread causes a slightly slower spike in blood sugar than the Classic White Miche.
- Mineral Absorption: The souring process neutralizes phytic acid in the wheat, theoretically allowing your body to absorb more trace minerals from the bread.
⚠️ When to Consider Alternatives
- Fiber Deprived: With only 1g of fiber per slice, this bread will not keep you full for long. You must load your sandwich with fibrous greens (spinach, cucumbers).
💡 Serving Hacks
- The Soup Dipper: Tearing a single 150-calorie slice and dipping it into a high-protein soup (like Chicken Noodle) is the perfect macro-balanced hack without overdoing the carbs.
❓ Frequently Asked Questions
How many calories are in Panera Classic Sourdough Bread?▼
A single 2 oz slice of Panera Classic Sourdough contains 150 calories. A standard deli sandwich requires two slices (300 calories).
Is Panera Sourdough actually healthy for your gut?▼
Real sourdough relies on a slow fermentation process that partially breaks down gluten and phytic acid, making it slightly easier to digest than traditional yeast breads. However, it is fundamentally still a refined white flour product.
Is Panera Classic Sourdough vegan?▼
Yes, traditional sourdough bread (including Panera’s implementation) requires only flour, water, and a wild yeast starter (no dairy or eggs).
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