Top 10 · Updated October 2026

Highest-Protein Sourdough Breads

Sourdough breads: typically 9.2 g of protein per 100 g (median of 47 products). The sourdough breads with the most protein per 100 g. Useful if you are trying to increase your protein intake. We checked 43 sourdough breads with complete data.

  1. 1 Protein sourdough toasting loaf

    Protein sourdough toasting loaf

    Aldi · 500g
    a NOVA 3 234 kcal 2.1 g sugar 19.3 g protein 2.1 g fat

    Also: Palm oil free

  2. 2 50% Lower Carbs Sourdough

    50% Lower Carbs Sourdough

    Gallagher’s Bakehouse
    a NOVA 4 216 kcal 2.3 g sugar 16 g protein 3.5 g fat
  3. 3 Spanish Cheese And Tomato Pan De Cristal

    Spanish Cheese And Tomato Pan De Cristal

    M&S · 225g
    NOVA 4 236 kcal 1.2 g sugar 14.9 g protein 7.4 g fat

    Also: Palm oil free · No additives

  4. 4 Jalepeno Cheddar Sourdough

    Jalepeno Cheddar Sourdough

    Aldi Specially Selected · 20 0Z unit
    d NOVA 4 246 kcal 0 g sugar 12.4 g protein 2.7 g fat
  5. 5 Spicy Chicken Milanese & Mozzarella on Sourdough

    Spicy Chicken Milanese & Mozzarella on Sourdough

    Coco di Mama
    c NOVA 4 244 kcal 2.1 g sugar 11.8 g protein 9.8 g fat
  6. 6 Seeded Sourdough

    Seeded Sourdough

    Duchy Organic · 600g
    a NOVA 3 269 kcal 2.1 g sugar 11.4 g protein 6.9 g fat

    Also: Palm oil free · No additives

  7. 7 Sliced White Sourdough Bread with Grains & Seeds

    Sliced White Sourdough Bread with Grains & Seeds

    JASONS · 900g
    a NOVA 3 242 kcal 1.4 g sugar 10.7 g protein 2.7 g fat

    Also: Palm oil free · No additives

  8. 8 Sourdough seeded sliced half cob

    Sourdough seeded sliced half cob

    Hovis · 450g
    a NOVA 3 269 kcal 1.9 g sugar 10.3 g protein 5 g fat

    Also: Palm oil free · No additives

  9. 9 Seeded Sourdough Half Bloomer

    Seeded Sourdough Half Bloomer

    Sainsbury's taste the difference · 400g
    b NOVA 4 274 kcal 1.6 g sugar 10.2 g protein 5.2 g fat

    Also: Palm oil free · Vegan · Vegetarian

  10. 10 Sourdough

    Sourdough

    Pepperidge Farm Farmhouse · 24 oz
    c NOVA 4 302 kcal 8.2 g sugar 10.2 g protein 3.1 g fat

    Also: Vegetarian

How we built this list

We ranked all published sourdough breads on Foodmetria that have a photo and the required nutrition data, using values per 100 g from the product label. Ties are broken by Nutri-Score and by how often shoppers scan the product. Rankings update automatically as label data changes. Read our methodology.

More sourdough breads rankings

Healthiest Sourdough Breads by Nutri-ScoreLeast Processed Sourdough BreadsLowest-Calorie Sourdough BreadsBest Low-Sugar Sourdough Breads All sourdough breads