Is Pineapple Juice Acidic or Alkaline?
Pineapple juice (raw) is alkaline: Negative PRAL: alkalizing after digestion.
Classification
Pineapple juice keeps the fruit's potassium. Only the fiber stays in the filter. So it lands at −2.6 per 100 ml, practically the same as fresh pineapple. At 47 kcal per 100 ml, though, almost all of the fruit sugar ends up in the glass too. Mixed with mineral water as a spritzer, it stays alkaline while the amount of sugar drops significantly.
In the Drinks category, pineapple juice (raw) ranks #6 of 80, sorted from alkaline to acid-forming. More alkaline options include Smoothie, purple (fruits) (−3.1), Carrot juice (−3.8), Tomato juice (−4.3). More acid-forming are Orange juice (−2.4), Orange juice, concentrate (−2.4), Coffee, decaffeinated (−2.3).
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.
Goes well with
Frequently Asked Questions
Is pineapple juice 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: Pineapple juice (raw) has a PRAL of −2.6 per 100 ml, so it counts as alkaline in your daily acid-base balance.
How much pineapple juice do I need for a noticeable effect?
A glass (200 ml) of pineapple juice adds −5.3 to your daily balance. For comparison: an egg is around +5.4, a slice of cheese around +6. So one serving of pineapple juice roughly offsets one of them.
Why is pineapple juice alkaline even though it is not a typical alkaline food?
The PRAL depends on the minerals left over after digestion, not on taste or pH. Pineapple juice provides more potassium, magnesium and calcium than phosphorus and protein, so the balance is negative (−2.6).
Pineapple Juice 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 Drinks: Drinks 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.