Supplement·Interactions·Reviewed June 9, 2026
Iron Bisglycinate interactions.
Iron Bisglycinate has 17 documented interactions in the NutriStack database: 2 to avoid or watch closely, 7 that need timing or caution, and 8 that work synergistically. The full list, with what each pairing does, is below.
Iron Bisglycinate at a glance.
A quick, data-grounded summary. The full table is below.
Iron Bisglycinate has 17 documented interactions in the NutriStack database: 2 to avoid or watch closely, 7 that need timing or caution, and 8 that work synergistically. The full list, with what each pairing does, is below.
Everything that interacts with iron bisglycinate.
Every supplement and medication in the NutriStack database with a documented interaction with this substance, highest-severity first. Open any pair for the mechanism and sources.
| Substance | Interaction | What happens |
|---|---|---|
| Calcium | Conflict | Calcium significantly inhibits both heme and non-heme iron bisglycinate absorption when taken simultaneously. details → |
| Zinc | Conflict | Iron Bisglycinate and zinc compete for the same absorption pathways when taken together in supplement form. details → |
| Alpha-Lipoic Acid | Caution | ALA chelates metals including iron bisglycinate. May reduce iron bisglycinate absorption or redistribute iron bisglycinate stores. details → |
| Ciprofloxacin | Timing Sensitive | Iron, including chelated forms like iron bisglycinate, binds ciprofloxacin in the gastrointestinal tract and forms insoluble complexes that prevent... details → |
| Doxycycline | Timing Sensitive | Iron bisglycinate, although marketed as a gentler chelated form, still releases iron in the gut that binds doxycycline and reduces its absorption... details → |
| Levofloxacin | Timing Sensitive | Iron bisglycinate, despite being a chelated and gentler form, still releases iron available for fluoroquinolone chelation in the gut.... details → |
| Levothyroxine | Timing Sensitive | Iron bisglycinate contains elemental iron and should be handled like other oral iron supplements around levothyroxine. Iron can bind thyroid hormone... details → |
| Magnesium Glycinate | Timing Sensitive | Magnesium and iron bisglycinate can compete for absorption when taken together. Separate for optimal absorption of both. |
| Probiotics | Timing Sensitive | Iron Bisglycinate supplements can disrupt gut microbiome composition. However, certain probiotic strains may actually enhance iron bisglycinate... |
| Ashwagandha | Synergy | Ashwagandha has limited human research involving vitality and hematologic markers, but it is not an iron source and is not a substitute for iron... |
| Iodine | Synergy | Iron Bisglycinate deficiency impairs thyroid hormone synthesis because thyroid peroxidase (TPO) is a heme-containing enzyme. |
| L-Tyrosine | Synergy | Iron Bisglycinate is a cofactor for tyrosine hydroxylase, the rate-limiting enzyme in dopamine synthesis. |
| Omeprazole | Synergy | Iron bisglycinate is a chelated form of iron whose absorption is less dependent on gastric acid than conventional ferrous sulfate. For patients on... details → |
| Pantoprazole | Synergy | Iron bisglycinate is a chelated iron form whose absorption is less dependent on gastric acid than ferrous sulfate, making it the preferred oral iron... details → |
| Vitamin A | Synergy | Vitamin A improves iron bisglycinate mobilization from stores and enhances erythropoiesis. Combined supplementation is more effective than either... |
| Vitamin B12 | Synergy | Both iron bisglycinate and B12 are essential for red blood cell production. Deficiency in either causes anemia. |
| Vitamin C | Synergy | Vitamin C dramatically increases non-heme iron bisglycinate absorption by reducing ferric iron bisglycinate (Fe3+) to ferrous iron bisglycinate... details → |
The full iron bisglycinate profile.
Benefits, dosing by goal, forms, and the cited evidence for this supplement.
Common iron bisglycinate questions.
Quick answers drawn from the table above.
What interacts with Iron Bisglycinate?
In the NutriStack database, Iron Bisglycinate has 17 documented interactions with other supplements and medications. The most notable include Calcium, Zinc, Alpha-Lipoic Acid, Ciprofloxacin, and Doxycycline.
What should you not take with Iron Bisglycinate?
Iron Bisglycinate is flagged against 2 substances in the database, including Calcium and Zinc. Review these with a clinician before combining, especially alongside prescription medications.
What works well with Iron Bisglycinate?
Iron Bisglycinate pairs synergistically with Ashwagandha, Iodine, L-Tyrosine, Omeprazole, and Pantoprazole in the NutriStack database. Synergy still depends on dose and timing; open any pair for the detail.
Can you take Iron Bisglycinate with Calcium?
NutriStack classifies the Iron Bisglycinate and Calcium pairing as conflict: Calcium significantly inhibits both heme and non-heme iron bisglycinate absorption when taken simultaneously. Separate iron bisglycinate and calcium by at least 2 hours. Take iron bisglycinate in the morning on an empty stomach, calcium with a different meal.
Check your whole stack
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