Plant
Sour dough bread
USDA description: Bread, sour dough
How sour dough bread scores for gout, what moved that score, and the nutrition and portions behind it.
Food Index score
Sour dough breadExcellent
| Starting score | 100 |
| Sodium | -6.9 |
| Calorie Density | -5.5 |
| Nutrient Gaps | -4 |
| Fiber | +1.4 |
| Folate | +1.2 |
| Purine Load | -1 |
| 2 smaller factors | 0 |
| Final score | 85 |
Sour dough bread scores 85 out of 100 and sits in the excellent band. Among the lower-risk choices for most people with gout, and often carries protective nutrients.
Penalties took 18.2 points off a starting score of 100, and protective factors added 3.4 back. Every factor is listed in full below.
Scores run 0–100, where higher means more gout-friendly on average. They reflect relative ranking across foods, not a personal risk level. The same food can suit one person and not another, so use the score as a starting point for a conversation with your clinician.
The underlying data
Nutrition and portions
Nutrition Facts
- Total Fat2.4 g
- Saturated Fat0.53 g
- Sodium602 mg
- Dietary Fiber2.2 g
- Total Sugars4.6 g
- Protein10.8 g
- Calcium52 mg
- Iron3.9 mg
- Magnesium32 mg
- Vitamin C0 mg
- Folate123 ug
- Water33 g
- Alcohol0 g
- Omega-3 EPA0 g
- Omega-3 DHA0 g
Common portions
- 1 small or thin/very thin slicetypical24 g
- 1 medium or regular slice31 g
- 1 large or thick slice43 g
- 1 slice, crust not eaten14 g
- 1 slice, snack-size10 g
- 1 individual loaf82 g
- 1 cubic inch3 g
- Quantity not specified31 g
Where the purine figure comes from
No direct purine measurement has been published for this food, so the score uses the measured median for its category (yeast breads).
We rate this a good confidence estimate.
How purines affect the score →Nutrition values from the USDA FoodData Central database.
Scoring rationale
Every factor, in full
Each row shows the points a factor moved, what drove it, and the studies behind its weight.
- -6.9Long-term
SodiumLong-term
602 mg of sodium per 100 g, with no portion adjustment.
Evidence: FitzGerald JD 2020, Arthritis Care Res
- -5.5Long-term
Calorie DensityLong-term
272 kcal per 100 g, above the 80 kcal energy-density threshold.
Evidence: Aune D 2014, Eur J Nutr
- -4Long-term
Nutrient GapsLong-term
Provides meaningful amounts of only 3 of the 5 protective nutrient groups (vitamin C, fiber, omega-3, magnesium and folate).
Evidence: Choi HK 2009, Arch Intern Med · Juraschek SP 2016, Arthritis Rheumatol · Zhang M 2019, Arthritis Rheumatol
- +1.4Long-term
FiberLong-term
2.2 g of dietary fiber per 100 g, with no portion adjustment.
Evidence: Juraschek SP 2016, Arthritis Rheumatol
- +1.2Long-term
FolateLong-term
123 µg of folate per 100 g, with no portion adjustment.
Evidence: Lyu LC 2017, Am J Clin Nutr
- -1Flare risk
Purine LoadFlare risk
20 mg of purines per 100 g, weighted 0.45x as a plant source and 1.0x for the typical portion: 9 mg effective.
Evidence: Choi HK 2004, N Engl J Med · Kaneko K 2014, Biol Pharm Bull · Zhang Y 2012, Ann Rheum Dis
- -0.8Long-term
Saturated FatLong-term
0.53 g of saturated fat per 100 g, with no portion adjustment.
Evidence: Juraschek SP 2016, Arthritis Rheumatol · Yokose C 2021, Curr Opin Rheumatol
- +0.8Long-term
MagnesiumLong-term
32 mg of magnesium per 100 g, with no portion adjustment.
Evidence: Li X 2015, BMJ
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Common questions
About sour dough bread
Look up any food's Food Index score
Each score lists the factors that moved it, the portion it assumes, and the studies behind each factor's weight.