Is Protein Bread Acidic or Alkaline?
Protein bread (baked) is acid-forming: Positive PRAL: acid-forming after digestion.
Classification
Protein bread replaces part of the flour with wheat protein, soy flour and seeds, and in PRAL terms more protein means more acid: +6.6, higher than most rolls. The seeds do bring potassium and magnesium, but also plenty of phosphorus. If you want fewer carbs, this bread delivers exactly that. A better acid-base balance at 226 kcal per 100 g, it does not.
In the Grains, Bread & Pasta category, protein bread (baked) ranks #91 of 121, sorted from alkaline to acid-forming. More alkaline options include Millet flour (+6.5), Buckwheat (+6.5), Wheat flour type 1050 (+6.5). More acid-forming are Egg noodles, fresh (+6.7), Buckwheat flour (+6.7), Rolled oats (+6.8).
Acidic or alkaline: PRAL, not pH
On this site, acidic and alkaline refer to the PRAL (potential renal acid load). It estimates what a food leaves behind once it has been digested: a positive value is acid-forming, a negative value is alkalizing. That is different from the pH of the food itself: a lemon tastes sour, yet its PRAL is −4.0, so it is alkalizing. Your diet does not change your blood pH. It does change how much acid your kidneys have to deal with.
What balances protein bread
Two slices (100 g) of protein bread adds +6.6 to your daily balance. These three bring it back; the grams shown offset exactly this serving.
Frequently Asked Questions
Is protein bread acidic?
It depends on what you mean by acidic. The pH describes the food itself, for example how sour it tastes. The PRAL describes what it leaves behind after digestion: Protein bread (baked) has a PRAL of +6.6 per 100 g, so it counts as acid-forming in your daily acid-base balance.
How much kale offsets two slices (100 g) of protein bread?
Two slices (100 g) of protein bread adds +6.6 to your daily balance. Kale (fresh) has −11.7 per 100 g, so about 60 g of kale offset this serving.
Do I have to avoid protein bread on an alkaline diet?
No. What counts is the balance of the whole day, not a single food. Protein bread is acid-forming; with enough vegetables, potatoes and fruit on the same plate, the meal stays balanced.
Protein Bread logged, balance checked.
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Compare all Grains, Bread & Pasta: Grains, Bread & Pasta table. Common questions are answered in Acidic or Alkaline?, and the PRAL calculator adds up a whole meal.
Source: Basentracker food database (PRAL according to Remer & Manz, calculated from protein, phosphorus, potassium, magnesium and calcium per 100 g). This information does not replace medical advice.