diff --git a/packages/db/src/seed.ts b/packages/db/src/seed.ts
index 27500c4..cf65909 100644
--- a/packages/db/src/seed.ts
+++ b/packages/db/src/seed.ts
@@ -1106,14 +1106,17 @@ async function seed() {
         temperamentScore: randInt(1, 5),
         temperamentFlags: pickN(temperamentFlagPool, randInt(1, 3)),
         medicalAlerts: (() => {
-          // ~30% of pets get alerts; TestCooper/TestRocky get deterministic types
+          // TestCooper always has a behavioral alert; TestRocky always has a skin alert.
+          // All other UAT test pets follow the 30% random distribution.
+          // Deterministic alerts on 2 of 507 pets (~0.4%) do not meaningfully shift
+          // the overall distribution from the 25-35% target band.
+          if (uc.petName === "TestCooper") {
+            return pickN(medicalAlertPool.filter((a) => a.type === "behavioral"), 1).map((a) => ({ ...a, id: uuid() }));
+          }
+          if (uc.petName === "TestRocky") {
+            return pickN(medicalAlertPool.filter((a) => a.type === "skin"), 1).map((a) => ({ ...a, id: uuid() }));
+          }
           if (rand() < 0.3) {
-            if (uc.petName === "TestCooper") {
-              return pickN(medicalAlertPool.filter((a) => a.type === "behavioral"), 1).map((a) => ({ ...a, id: uuid() }));
-            }
-            if (uc.petName === "TestRocky") {
-              return pickN(medicalAlertPool.filter((a) => a.type === "skin"), 1).map((a) => ({ ...a, id: uuid() }));
-            }
             const count = rand() < 0.7 ? 1 : 2;
             return pickN(medicalAlertPool, count).map((a) => ({ ...a, id: uuid() }));
           }
@@ -1136,14 +1139,17 @@ async function seed() {
           temperamentScore: randInt(1, 5),
           temperamentFlags: pickN(temperamentFlagPool, randInt(1, 3)),
           medicalAlerts: (() => {
-            // ~30% of pets get alerts; TestCooper/TestRocky get deterministic types
+            // TestCooper always has a behavioral alert; TestRocky always has a skin alert.
+            // All other UAT test pets follow the 30% random distribution.
+            // Deterministic alerts on 2 of 507 pets (~0.4%) do not meaningfully shift
+            // the overall distribution from the 25-35% target band.
+            if (uc.petName === "TestCooper") {
+              return pickN(medicalAlertPool.filter((a) => a.type === "behavioral"), 1).map((a) => ({ ...a, id: uuid() }));
+            }
+            if (uc.petName === "TestRocky") {
+              return pickN(medicalAlertPool.filter((a) => a.type === "skin"), 1).map((a) => ({ ...a, id: uuid() }));
+            }
             if (rand() < 0.3) {
-              if (uc.petName === "TestCooper") {
-                return pickN(medicalAlertPool.filter((a) => a.type === "behavioral"), 1).map((a) => ({ ...a, id: uuid() }));
-              }
-              if (uc.petName === "TestRocky") {
-                return pickN(medicalAlertPool.filter((a) => a.type === "skin"), 1).map((a) => ({ ...a, id: uuid() }));
-              }
               const count = rand() < 0.7 ? 1 : 2;
               return pickN(medicalAlertPool, count).map((a) => ({ ...a, id: uuid() }));
             }