Is Oat Bran Acidic or Alkaline?
Oat bran (raw) is strongly acid-forming: Positive PRAL: acid-forming after digestion.
Classification
Oat bran sits at +17.1, far above other oat products. The outer layer of the grain holds a lot of protein and especially phosphorus, while potassium doesn't rise to match. Compared with rolled oats, that's more than double. A spoonful in your yogurt barely counts. As a porridge base, it does.
In the Grains, Bread & Pasta category, oat bran (raw) ranks #120 of 121, sorted from alkaline to acid-forming. More alkaline options include Oat flour (+12.2), Spaghetti (+10.9), Penne (+10.9). More acid-forming are Wheat germ (+20.1).
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 oat bran
A dry serving (50 g) of oat bran adds +8.6 to your daily balance. These three bring it back; the grams shown offset exactly this serving.
Frequently Asked Questions
Is oat bran 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: Oat bran (raw) has a PRAL of +17.1 per 100 g, so it counts as strongly acid-forming in your daily acid-base balance.
How much spinach offsets a dry serving (50 g) of oat bran?
A dry serving (50 g) of oat bran adds +8.6 to your daily balance. Spinach (fresh) has −12.2 per 100 g, so about 70 g of spinach offset this serving.
Do I have to avoid oat bran on an alkaline diet?
No. What counts is the balance of the whole day, not a single food. Oat bran is strongly acid-forming; with enough vegetables, potatoes and fruit on the same plate, the meal stays balanced.
Oat Bran logged, balance checked.
Basentracker adds up every meal automatically and shows whether your day is in the alkaline range. The same values as on this page, all 977 foods, photo scan, recipes.
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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.