Supplement Timing Planner

Pick your supplements and instantly see the best time slots and which combinations should not be taken together.

⚠️ This schedule is general information, not medical advice. For drug interactions, always consult a pharmacist or doctor.

🍽️ Meal pattern

Select the meals you eat — this affects after-meal placement.

💊 Pick supplements

6 selected

Water-soluble vitamins

Fat-soluble vitamins

Minerals

Others

🚫 Conflict warnings1

  • 🩸 Iron🦴 CalciumMust separate

    Calcium blocks iron absorption — keep them at least 2 hours apart.

🤝 Great pairings

  • ☀️ Vitamin D + 🦴 Calcium — Vitamin D boosts calcium absorption — great for bone health.
  • ☀️ Vitamin D + 🌙 Magnesium — Magnesium helps activate vitamin D.

🗓️ Timing schedule

Morning, empty stomachOn waking · 30 min before food
  • Iron

    Best on empty stomach; keep 2h from calcium & zinc.

  • Probiotics

    Empty stomach or 30 min before a meal for survival.

After breakfastRight after breakfast
  • Calcium

    Split into ≤500mg doses after meals; separate from iron.

After dinnerRight after dinner
  • Vitamin D

    Fat-soluble — take with your largest meal.

  • Omega-3

    Take with a meal to reduce reflux; high doses thin blood.

Before bed30 min before sleep
  • Magnesium

    Take before bed — supports muscle relaxation and sleep.

Timing principles at a glance

  • 🩸 Empty stomach — iron & probiotics absorb best with little food/acid.
  • 🍊 After meal — vitamin C, zinc and minerals with food to reduce irritation.
  • 🐟 Fat-soluble — vitamins A/D/E/K, omega-3, lutein with a fatty meal.
  • 🌙 Before bed — magnesium supports relaxation and sleep.

This schedule is general information, not medical advice. For drug interactions, always consult a pharmacist or doctor.

Guide · FAQ · bal.pe.kr tools

For timing details see Guide, FAQ, About. Last updated 2026-06-15.