Moderate interactionModerateSeparate by 2h
Iron bisglycinate and Dairy (milk, yoghurt): interaction, severity and spacing
Iron bisglycinate and Dairy (milk, yoghurt) interact because the calcium in dairy blocks non-heme iron absorption at the same meal, and casein and whey proteins may also inhibit it. Take them 2 hours apart. Moderate risk.
Last reviewed: 2026-09-20Reviewed by: StackingRight clinical review
The interaction in detail
| Pair | Iron bisglycinate and Dairy (milk, yoghurt) |
|---|---|
| Type | Food interaction |
| Severity | Moderate |
| Required spacing | 2 hours minimum |
| Onset | At the time of dosing |
Mechanism
The calcium in dairy blocks non-heme iron absorption at the same meal, and casein and whey proteins may also inhibit it.
What to do
Take iron away from dairy; use a calcium-free meal or an empty stomach as the iron window.
How to fit both into one day
Iron bisglycinate
morningempty stomach
Non-heme iron absorbs best on an empty stomach with vitamin C. Coffee, tea and calcium can halve absorption, so keep them two hours away.
Putting Iron bisglycinate in the morning and Dairy (milk, yoghurt) in the evening satisfies the 2-hour separation without disrupting either one's absorption window.