Oysters have a 6.0 pH level, once digested. Shellfish is an acidic food group.

What is the pH of oysters?

χ2ppH 7.9 – F versus M0.030.87pH 7.5 – F versus M0.730.39pH 7.1 – F versus M8.240.02

Are shellfish acidic?

Potentially acidic foods include many protein foods (meat, fish, shellfish, poultry, eggs, cheese, peanuts), grains, certain fats (bacon, nuts and seeds), coffee and alcohol.