Modern diets often fall short of magnesium, a mineral that supports hundreds of essential functions in the body, from muscle control and nerve signaling to energy metabolism and DNA repair.
While most people can get enough through foods like leafy greens, nuts, and whole grains, supplements are sometimes needed to fill the gap.
However, Dr. Aurelio Rojas, a Spanish cardiologist interviewed by Men's Health, warns that many people take magnesium at the wrong time.
It’s not just about how much you take, but when you take it that makes the real difference.
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The ideal time for maximum benefit
According to Dr. Aurelio Rojas, magnesium is most effective when taken about an hour to an hour and a half before bedtime.
This timing allows it to activate the parasympathetic nervous system, the body’s “rest and recovery” mode, and helps prepare both mind and muscles for sleep.
Magnesium also promotes the production of GABA, a calming neurotransmitter that helps the brain slow down at night.
Stress, cortisol, and restful sleep
For those who experience stress or restlessness in the evening, magnesium can help reduce spikes in cortisol which is the stress hormone that interferes with deep sleep.
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"In short, magnesium acts as a natural regulator of the nervous system. It’s ideal for cases of mild insomnia, accumulated stress, or frequent awakenings", he said to Men's Health.
It also eases muscle tension and prevents nighttime cramps, supporting a calmer body and mind.
Experts remind readers to consult a healthcare professional before starting any supplement regimen, especially if taking other medications or managing heart-related conditions.
Sources: Men's Health, and Dagens.dk.
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