Magnesium and Vitamin B1 (Thiamine)
Magnesium is required for thiamine-dependent enzymes to function properly.
Magnesium
A master mineral involved in 300+ enzyme reactions.
Vitamin B1 (Thiamine)
The energy metabolism cofactor that keeps nerves and muscles firing.
Designed to work as a pair
One is required for the other to do its job, so they belong together in a stack.
How to take them
Magnesium
- Dose
- 200–400 mg elemental magnesium per day
- Timing
- Evening for sleep support; with food to reduce GI upset
Vitamin B1 (Thiamine)
- Dose
- 1–1.5 mg per day (RDA); 100–300 mg for therapeutic use
- Timing
- With meals to improve absorption
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Frequently asked
Can you take Magnesium and Vitamin B1 (Thiamine) together?
Yes, they are commonly taken together. Magnesium is required for thiamine-dependent enzymes to function properly.
What's the best time to take Magnesium and Vitamin B1 (Thiamine)?
Around the same time works well. Magnesium: Evening for sleep support; with food to reduce GI upset. Vitamin B1 (Thiamine): With meals to improve absorption.
How do Magnesium and Vitamin B1 (Thiamine) interact?
Cofactor: Required for the other to do its job. Magnesium is required for thiamine-dependent enzymes to function properly.
Related pairings
Glycine + Magnesium
A sleep pairing with a built-in shortcut: magnesium glycinate is magnesium bound to glycine, so that form already delivers both. A standalone 3 g dose before bed (the amount sleep studies used) tops up the glycine, lowering core body temperature while magnesium relaxes muscles and calms the nervous system.
Magnesium + Vitamin D3
Magnesium is required to convert vitamin D into its active form, so low magnesium blunts D3's benefits.
L-Arginine + Magnesium
Magnesium supports vascular smooth muscle relaxation alongside nitric oxide from arginine.
Ashwagandha + Magnesium
Commonly combined for stress relief and better sleep quality.