Magnesium and Vitamin D together
Checked on Magnesium Glycinate and Vitamin D3 — 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.
Compatible. Timing differs, so follow each supplement's own window.
Verdict
Timing plan
Can be taken togetherNothing blocks them — the same window is what produces the synergy below.
What helps
Magnesium Glycinate → Vitamin D3
Cofactor for vitamin D converting enzymes · level AMagnesium Glycinate → Vitamin D3
Improves magnesium transport into cells · level BVitamin D3 → Magnesium Glycinate
Required for 25-hydroxylase and 1α-hydroxylase enzymes · level AWhat each one is for
Two different jobs — that is why the pairing question comes up at allMagnesium 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.
Vitamin D3 — bone health & immune support.
Usual daily dose 1000-2000 IU, taken morning with fat. The ceiling is 100 mcg (4000 IU) a day (NIH ODS). It is named as the suspect product in 276 FDA reports. Evidence grade A.
Side by side
| Magnesium Glycinate | Vitamin D3 | |
|---|---|---|
| Absorption score | 90/100 | 85/100 |
| Elemental mineral | 14.1% | —% |
| Cost per 100 mg delivered | $1.64 | $— |
| Safety rating | 9/10 | 9/10 |
| Cost per month | $25 | $8 |
| Daily dose | 200-600 mg | 1000-2000 IU |
| Best timing | Evening with or without food | Morning with fat |
| Evidence level | A | A |
How this score was built
- Baseline for any untested pair: 70
- +12 — synergy at evidence level A
- +8 — synergy at evidence level B
- +12 — synergy at evidence level A
- = 99 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 Magnesium Glycinate and Vitamin D3 together?
Compatible. Timing differs, so follow each supplement's own window. The pair scores 99 out of 100, based on 3 documented interaction records.
What should you not take with Magnesium Glycinate?
Nothing in this pairing clashes. Its own page lists everything Magnesium Glycinate is documented to conflict with.
When should you take Magnesium Glycinate and Vitamin D3?
Magnesium Glycinate: Evening with or without food. Vitamin D3: Morning with fat. The same window works for both.