Calcium and Magnesium together
Checked on Calcium and Magnesium Glycinate — the best-absorbed forms people actually buy. Other forms of the same two behave the same way here: the interaction belongs to the mineral, not to the carrier.
Separate by 2-4 hours to avoid the interaction below.
Verdict
Timing plan
Separate themThese two compete on absorption. Splitting the day keeps both effective.
What clashes
Magnesium Glycinate → Calcium
Competition for absorption pathways · moderateWhat helps
Calcium → Magnesium Glycinate
Magnesium regulates calcium transport and parathyroid hormone function · level AWhat each one is for
Two different jobs — that is why the pairing question comes up at allCalcium — bone health & muscle function.
Usual daily dose 1,000-1,200 mg, taken divided doses with meals. The ceiling is 2500 mg a day (NIH ODS). It is named as the suspect product in 569 FDA reports. Evidence grade A.
Magnesium Glycinate — superior absorption sleep & muscle support.
Usual daily dose 200-600 mg, taken evening with or without food. The ceiling is 350 mg from supplements a day (NIH ODS). It is named as the suspect product in 379 FDA reports. Evidence grade A.
Side by side
| Calcium | Magnesium Glycinate | |
|---|---|---|
| Absorption score | 30/100 | 90/100 |
| Elemental mineral | 100% | 14.1% |
| Cost per 100 mg delivered | $0.2 | $1.64 |
| Safety rating | 8/10 | 9/10 |
| Cost per month | $20 | $25 |
| Daily dose | 1,000-1,200 mg | 200-600 mg |
| Best timing | Divided doses with meals | Evening with or without food |
| Evidence level | A | A |
How this score was built
- Baseline for any untested pair: 70
- +12 — synergy at evidence level A
- −18 — moderate clinical conflict
- = 64 out of 100
Where to buy
Buying both? Check the timing plan above so they do not cancel each other out.
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Common questions
Can you take Calcium and Magnesium Glycinate together?
Separate by 2-4 hours to avoid the interaction below. The pair scores 64 out of 100, based on 2 documented interaction records.
What should you not take with Calcium?
In this pairing the issue is: High calcium can interfere with magnesium absorption Separate them by two to four hours.
When should you take Calcium and Magnesium Glycinate?
Calcium: Divided doses with meals. Magnesium Glycinate: Evening with or without food. Keep at least a two-hour gap between them.