diff --git a/frontend/js/main.js b/frontend/js/main.js
index 663258f..7920d2a 100644
--- a/frontend/js/main.js
+++ b/frontend/js/main.js
@@ -3292,14 +3292,14 @@ const MICRO_FIELDS = [
   { key: "vit_b5_mg",      label: "B5 (мг)" },
   { key: "vit_b6_mg",      label: "B6 (мг)" },
   { key: "vit_b7_mcg",     label: "B7/биотин (мкг)" },
-  { key: "folate_mcg",     label: "B9/фолат (мкг)" },
+  { key: "folate_mcg",     label: "B9/фолат (мг)", mult: 1000 },
   { key: "vit_b12_mcg",    label: "B12 (мкг)" },
   { key: "calcium_mg",     label: "Кальций (мг)" },
   { key: "magnesium_mg",   label: "Магний (мг)" },
   { key: "iron_mg",        label: "Железо (мг)" },
   { key: "zinc_mg",        label: "Цинк (мг)" },
   { key: "copper_mg",      label: "Медь (мг)" },
-  { key: "selenium_mcg",   label: "Селен (мкг)" },
+  { key: "selenium_mcg",   label: "Селен (мг)", mult: 1000 },
   { key: "potassium_mg",   label: "Калий (мг)" },
   { key: "sodium_mg",      label: "Натрий (мг)" },
   { key: "phosphorus_mg",  label: "Фосфор (мг)" },
@@ -3365,11 +3365,14 @@ function showEditSupplementModal(existing) {
   const isNew = !existing;
   const s = existing || {};
 
-  const microHtml = MICRO_FIELDS.map(f =>
-    `<div class="form-group micro-field">
+  const microHtml = MICRO_FIELDS.map(f => {
+    let displayVal = s[f.key] ?? "";
+    if (displayVal && f.mult) displayVal = Math.round(displayVal / f.mult * 1000) / 1000; // mcg→mg for display
+    return `<div class="form-group micro-field">
       <label>${f.label}</label>
-      <input id="m-${f.key}" type="number" inputmode="decimal" step="any" value="${s[f.key] ?? ""}" placeholder="—" />
-    </div>`
+      <input id="m-${f.key}" type="number" inputmode="decimal" step="any" value="${displayVal}" placeholder="—" />
+    </div>`;
+  }
   ).join("");
 
   showModal(`
@@ -3390,7 +3393,9 @@ function showEditSupplementModal(existing) {
     if (!name) return false;
     const data = { name, daily_dose_g: parseFloat(overlay.querySelector("#m-dose").value) || null };
     for (const f of MICRO_FIELDS) {
-      data[f.key] = parseFloat(overlay.querySelector(`#m-${f.key}`).value) || null;
+      let val = parseFloat(overlay.querySelector(`#m-${f.key}`).value) || null;
+      if (val && f.mult) val *= f.mult; // convert mg→mcg where needed
+      data[f.key] = val;
     }
     if (isNew) {
       await DB.addSupplement(data);