Is Redfish (Ocean Perch) Acidic or Alkaline?
Redfish (ocean perch) (raw) is acid-forming: Positive PRAL: acid-forming after digestion.
Classification
Raw redfish (ocean perch) comes in at +7.4, because its firm white flesh provides a lot of protein and phosphorus but few alkaline minerals. Among fish, that is a middle value: plaice is at +6.8, scampi at +9.7. A 150 g fillet comes to about +11. With potatoes and cucumber salad on the side, the plate becomes much more balanced.
In the Fish & Seafood category, redfish (ocean perch) (raw) ranks #17 of 56, sorted from alkaline to acid-forming. More alkaline options include Pangasius (+7.3), Matjes herring (+7.1), Cod (+6.9). More acid-forming are Haddock (+7.5), Carp (+7.6), Trout (+8.1).
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 redfish (ocean perch)
A fillet (125 g) of redfish (ocean perch) adds +9.3 to your daily balance. These three bring it back; the grams shown offset exactly this serving.
Frequently Asked Questions
Is redfish (ocean perch) 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: Redfish (ocean perch) (raw) has a PRAL of +7.4 per 100 g, so it counts as acid-forming in your daily acid-base balance.
How much spinach offsets a fillet (125 g) of redfish (ocean perch)?
A fillet (125 g) of redfish (ocean perch) adds +9.3 to your daily balance. Spinach (fresh) has −12.2 per 100 g, so about 80 g of spinach offset this serving.
Do I have to avoid redfish (ocean perch) on an alkaline diet?
No. What counts is the balance of the whole day, not a single food. Redfish (ocean perch) is acid-forming; with enough vegetables, potatoes and fruit on the same plate, the meal stays balanced.
Redfish (Ocean Perch) logged, balance checked.
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Compare all Fish & Seafood: Fish & Seafood 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.