diff --git a/src/lib/analytics/score/__tests__/reader.test.ts b/src/lib/analytics/score/__tests__/reader.test.ts
index 3a68a6356..bafbffde0 100644
--- a/src/lib/analytics/score/__tests__/reader.test.ts
+++ b/src/lib/analytics/score/__tests__/reader.test.ts
@@ -1,7 +1,11 @@
 import { describe, expect, it, vi } from "vitest";
 import type { PrismaClient } from "@/generated/prisma/client";
 
-import { readActivityDays, readFastingGlucoseMeasurements } from "../reader";
+import {
+  computeUserHealthScore,
+  readActivityDays,
+  readFastingGlucoseMeasurements,
+} from "../reader";
 
 function dbWithRows(rows: unknown[]) {
   return {
@@ -107,6 +111,51 @@ describe("score reader bounds and source parity", () => {
     expect(result.days).toEqual([{ day: "2026-07-02", value: 1_000 }]);
   });
 
+  it("reads an empty labs set as not_tracked, never read_failed", async () => {
+    // A labs-enabled account with no lab rows has honestly recorded
+    // nothing: the read SUCCEEDED and found an empty set. `read_failed`
+    // is reserved for a read that threw — showing it here would offer a
+    // Retry that can never help.
+    const db = {
+      measurement: { findMany: vi.fn().mockResolvedValue([]) },
+      mentalHealthAssessment: { findMany: vi.fn().mockResolvedValue([]) },
+      labResult: { findMany: vi.fn().mockResolvedValue([]) },
+      dismissedPriorityItem: { findUnique: vi.fn().mockResolvedValue(null) },
+    } as unknown as PrismaClient;
+
+    const report = await computeUserHealthScore({
+      prisma: db,
+      userId: "user-1",
+      now: new Date("2026-07-28T12:00:00.000Z"),
+      profile: {
+        dateOfBirth: new Date("1985-07-09"),
+        heightCm: 178,
+        timezone: "Europe/Berlin",
+        sourcePriorityJson: null,
+        thresholdsJson: null,
+      },
+      modules: {
+        glucose: true,
+        labs: true,
+        sleep: true,
+        mentalHealth: true,
+      },
+      healthScoreConfigJson: null,
+      bpTargets: null,
+      bpEnvelope: null,
+      bpEnvelopePriorWeek: null,
+      bpEnvelopePriorTwoWeeks: null,
+    });
+
+    for (const id of ["GLYCAEMIA", "LIPIDS"] as const) {
+      const pillar = report.pillars.find((p) => p.id === id)!;
+      expect(pillar.result.status).toBe("insufficient");
+      expect(
+        pillar.result.status === "insufficient" && pillar.result.reason,
+      ).toBe("not_tracked");
+    }
+  });
+
   it("excludes source writers outside the current 28-day score window", async () => {
     const db = dbWithRows([
       stepRow("2026-06-15T09:00:00.000Z", 8_000, "watch", "APPLE_HEALTH"),
diff --git a/src/lib/analytics/score/reader.ts b/src/lib/analytics/score/reader.ts
index 22e636641..989ce5b44 100644
--- a/src/lib/analytics/score/reader.ts
+++ b/src/lib/analytics/score/reader.ts
@@ -443,8 +443,8 @@ function scoreInputsFor(args: {
       biomarker: {
         name: string;
         unit: string;
-        referenceLow: number | null;
-        referenceHigh: number | null;
+        lowerBound: number | null;
+        upperBound: number | null;
       } | null;
     }>
   >;
@@ -597,9 +597,8 @@ function scoreInputsFor(args: {
         marker: row.biomarker?.name ?? row.analyte,
         value: row.value!,
         unit: row.unit || row.biomarker?.unit || "",
-        referenceLow: row.referenceLow ?? row.biomarker?.referenceLow ?? null,
-        referenceHigh:
-          row.referenceHigh ?? row.biomarker?.referenceHigh ?? null,
+        referenceLow: row.referenceLow ?? row.biomarker?.lowerBound ?? null,
+        referenceHigh: row.referenceHigh ?? row.biomarker?.upperBound ?? null,
         panel: row.panel,
         at: row.takenAt,
         source: row.source,
@@ -708,12 +707,18 @@ export async function computeUserHealthScore(
               panel: true,
               takenAt: true,
               source: true,
+              // The catalog's range columns are `lowerBound` / `upperBound`
+              // (`lower_bound` / `upper_bound`), not the LabResult's own
+              // `reference*` names. Prisma rejects a select against names a
+              // model does not have at query-validation time — before any
+              // row is read — so getting this wrong fails EVERY labs read,
+              // not just rows that use the catalog fallback.
               biomarker: {
                 select: {
                   name: true,
                   unit: true,
-                  referenceLow: true,
-                  referenceHigh: true,
+                  lowerBound: true,
+                  upperBound: true,
                 },
               },
             },
diff --git a/tests/integration/health-score-labs-pillars.test.ts b/tests/integration/health-score-labs-pillars.test.ts
new file mode 100644
index 000000000..00c1be13a
--- /dev/null
+++ b/tests/integration/health-score-labs-pillars.test.ts
@@ -0,0 +1,188 @@
+/**
+ * v1.37.13 — Health Score GLYCAEMIA + LIPIDS pillars through a real
+ * Postgres round trip of `GET /api/analytics`.
+ *
+ * The score reader joins each LabResult to its linked Biomarker for the
+ * canonical name, unit and reference bounds. The Biomarker columns are
+ * `lowerBound` / `upperBound`; a select that asks the relation for the
+ * LabResult's own `referenceLow` / `referenceHigh` names is rejected by
+ * the Prisma client at query-validation time — before any row is read —
+ * which turns EVERY labs read into `read_failed` and parks both pillars
+ * on "Data could not be loaded" permanently, Retry included. A mocked
+ * client cannot catch that class, so these cases run the real join.
+ *
+ * Two contracts:
+ *
+ *   1. A linked HbA1c reading and a lipid reading whose reference range
+ *      lives ONLY on the biomarker catalog row (the per-row bounds left
+ *      NULL) score both pillars — the join delivers name, unit and the
+ *      catalog bounds.
+ *   2. A labs-enabled account with no lab rows reads as `not_tracked` —
+ *      an honest "nothing recorded", never `read_failed`, which is
+ *      reserved for a read that genuinely failed.
+ */
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+
+process.env.ENCRYPTION_KEY ??=
+  "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef";
+
+import { cookieJar, headerJar } from "./mock-next-headers";
+import { getPrismaClient, truncateAllTables } from "./setup";
+
+vi.mock("next/headers", async () => {
+  const { cookieJar, headerJar } = await import("./mock-next-headers");
+  return {
+    headers: vi.fn(async () => ({
+      get: (name: string) => headerJar.get(name.toLowerCase()) ?? null,
+    })),
+    cookies: vi.fn(async () => ({
+      get: (name: string) => {
+        const value = cookieJar.get(name);
+        return value ? { name, value } : undefined;
+      },
+      set: (name: string, value: string) => {
+        cookieJar.set(name, value);
+      },
+      delete: (name: string) => {
+        cookieJar.delete(name);
+      },
+    })),
+  };
+});
+
+vi.mock("@/lib/db-compat", () => ({
+  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
+}));
+
+beforeEach(async () => {
+  await truncateAllTables(getPrismaClient());
+  cookieJar.clear();
+  headerJar.clear();
+});
+
+afterEach(() => {
+  vi.restoreAllMocks();
+});
+
+interface PillarEnvelope {
+  id: string;
+  result: {
+    status: "ok" | "insufficient";
+    reason?: string;
+    value?: { score: number; observed: { value: number } };
+  };
+}
+
+interface AnalyticsEnvelope {
+  data: {
+    healthScore: { pillars: PillarEnvelope[] } | null;
+  } | null;
+}
+
+async function seedSession(username: string) {
+  const prisma = getPrismaClient();
+  const user = await prisma.user.create({
+    data: {
+      username,
+      email: `${username}@example.test`,
+      role: "USER",
+      heightCm: 178,
+      dateOfBirth: new Date("1985-07-09"),
+    },
+  });
+  const session = await prisma.session.create({
+    data: {
+      userId: user.id,
+      expiresAt: new Date(Date.now() + 60_000),
+    },
+  });
+  cookieJar.set("healthlog_session", session.id);
+  return user;
+}
+
+async function fetchScorePillars() {
+  const { GET } = await import("@/app/api/analytics/route");
+  const res = await (GET as (req: Request) => Promise<Response>)(
+    new Request("http://localhost/api/analytics"),
+  );
+  expect(res.status).toBe(200);
+  const env = (await res.json()) as AnalyticsEnvelope;
+  const pillars = env.data!.healthScore!.pillars;
+  return new Map(pillars.map((p) => [p.id, p]));
+}
+
+describe("GET /api/analytics — labs-fed score pillars (biomarker join)", () => {
+  it("scores GLYCAEMIA and LIPIDS from lab rows joined to their biomarker", async () => {
+    const user = await seedSession("hs-labs-join");
+    const prisma = getPrismaClient();
+    const takenAt = new Date(Date.now() - 7 * 24 * 60 * 60 * 1000);
+
+    const hba1c = await prisma.biomarker.create({
+      data: {
+        userId: user.id,
+        name: "HbA1c",
+        unit: "%",
+        lowerBound: 5,
+        upperBound: 5.6,
+      },
+    });
+    await prisma.labResult.create({
+      data: {
+        userId: user.id,
+        biomarkerId: hba1c.id,
+        analyte: "HbA1c",
+        value: 5.2,
+        unit: "%",
+        takenAt,
+      },
+    });
+
+    // The lipid row deliberately carries NO per-row reference bounds: the
+    // range the pillar grades against must arrive through the biomarker
+    // join, which is exactly the leg the wrong select severed.
+    const ldl = await prisma.biomarker.create({
+      data: {
+        userId: user.id,
+        name: "LDL Cholesterol",
+        unit: "mg/dL",
+        upperBound: 130,
+      },
+    });
+    await prisma.labResult.create({
+      data: {
+        userId: user.id,
+        biomarkerId: ldl.id,
+        analyte: "ldl",
+        value: 110,
+        unit: "mg/dL",
+        takenAt,
+      },
+    });
+
+    const byId = await fetchScorePillars();
+
+    const glycaemia = byId.get("GLYCAEMIA")!;
+    expect(glycaemia.result.reason).not.toBe("read_failed");
+    expect(glycaemia.result.status).toBe("ok");
+    expect(glycaemia.result.value!.observed.value).toBe(5.2);
+
+    const lipids = byId.get("LIPIDS")!;
+    expect(lipids.result.reason).not.toBe("read_failed");
+    expect(lipids.result.status).toBe("ok");
+    expect(lipids.result.value!.score).toBeGreaterThan(0);
+  });
+
+  it("reads not_tracked, never read_failed, when a labs account has no rows", async () => {
+    await seedSession("hs-labs-empty");
+
+    const byId = await fetchScorePillars();
+
+    const glycaemia = byId.get("GLYCAEMIA")!;
+    expect(glycaemia.result.status).toBe("insufficient");
+    expect(glycaemia.result.reason).toBe("not_tracked");
+
+    const lipids = byId.get("LIPIDS")!;
+    expect(lipids.result.status).toBe("insufficient");
+    expect(lipids.result.reason).toBe("not_tracked");
+  });
+});