L-Arginine and Magnesium
Magnesium supports vascular smooth muscle relaxation alongside nitric oxide from arginine.
L-Arginine
The nitric oxide precursor for blood flow and cardiovascular health.
Magnesium
A master mineral involved in 300+ enzyme reactions.
Great to combine
These two are frequently stacked together; they complement each other and are commonly taken at the same time.
How to take them
L-Arginine
- Dose
- 3–6 g per day for cardiovascular/ED benefit; 6–10 g pre-workout for performance
- Timing
- 30–60 minutes before exercise for performance; spread throughout the day for cardiovascular goals
Magnesium
- Dose
- 200–400 mg elemental magnesium per day
- Timing
- Evening for sleep support; with food to reduce GI upset
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Frequently asked
Can you take L-Arginine and Magnesium together?
Yes, they are commonly taken together. Magnesium supports vascular smooth muscle relaxation alongside nitric oxide from arginine.
What's the best time to take L-Arginine and Magnesium?
Around the same time works well. L-Arginine: 30–60 minutes before exercise for performance; spread throughout the day for cardiovascular goals. Magnesium: Evening for sleep support; with food to reduce GI upset.
How do L-Arginine and Magnesium interact?
Synergy: Work better together than alone. Magnesium supports vascular smooth muscle relaxation alongside nitric oxide from arginine.
Related pairings
L-Arginine + L-Citrulline
L-Citrulline converts to arginine in the kidneys far more efficiently than oral arginine; the two share the same nitric oxide pathway.
L-Arginine + Vitamin C
Vitamin C protects nitric oxide from oxidative breakdown, extending the vasodilatory effect of arginine.
L-Arginine + Zinc
Zinc is a cofactor for nitric oxide synthase, the enzyme that converts arginine to NO.
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.