Can you take iron and calcium together?
Yes, but space them out
This is the pair to actually separate: calcium reduces iron absorption, and our catalog grades the interaction moderate.
What happens when you combine them
Most mineral interactions in our catalog are mild. This one is moderate: calcium meaningfully cuts iron absorption when they share a window, whether the calcium comes from a supplement or a dairy-heavy meal.
If you're supplementing iron, you're almost always correcting a deficiency, so absorption is the entire point. This is the interaction that can quietly undo months of consistent supplementation.
How to time it
Iron goes first thing, 2 hours clear of calcium in any form. Calcium takes lunch and dinner, split when the total is high. Vitamin C alongside the iron helps rather than hurts.
Common questions
Does dairy block iron supplements?
Calcium is calcium, whether from a supplement or a glass of milk, so a dairy-heavy meal near your iron dose has the same effect. Keep the 2 hour window on both sides of the iron.
Keep reading
Space it right, automatically.
Add both to your stack and Suplagen schedules them at the right times, checks every interaction, and reminds you when to take what.
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