Ashwagandha and magnesium: which is better and the benefits of taking them together

By: Dra. Isabel Belaustegui Published: 22 Sep 2025Updated: 24 Sep 2026Reading: 8 min
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When we talk about natural supplements, two ingredients that increasingly stand out for their effectiveness and scientific backing are ashwagandha and magnesium. Both are used to reduce stress, improve sleep and support mental and physical balance.

But which is better? Does it make sense to combine them? In this article we clear up these doubts, analyse their benefits and tell you how to integrate them safely into your daily routine.

Ashwagandha and magnesium can be combined within a routine focused on rest, calm and daily recovery. They don't act the same way: ashwagandha is an adaptogen associated with stress management, while magnesium takes part in muscle and nerve functions. The key is choosing the right time to take each, checking individual tolerance and not replacing medical advice if there is medication, pregnancy or pre-existing conditions.

What ashwagandha is

Ashwagandha (Withania somnifera) is an ancient adaptogenic plant used in Ayurvedic medicine. Its main function is to help the body adapt to stress, regulating levels of cortisol, the stress hormone par excellence, without producing sedation or dependence.

These are its most notable benefits:

  1. Helps reduce stress and anxiety.

  2. Improves sleep quality.

  3. Contributes to hormonal balance and the immune system.

  4. May support concentration and mental energy.

At ZZEN Labs we use Ashwagandha KSM-66® (600 mg) in our nootropic ZZEN Calm, one of the most studied and most bioavailable extracts on the market.

[es] Nootrópico ZZEN Calm

ZZEN CALM | Ashwagandha KSM-66

29,90 € View ZZEN CALM | Ashwagandha KSM-66 →

What magnesium is

Magnesium is an essential mineral involved in more than 300 biochemical processes in the body. Despite its importance, many people don't reach the recommended levels in their daily diet, which can cause fatigue, muscle tension, irritability and difficulty sleeping.

These are its main benefits:

  1. Relaxes the nervous system and helps you fall asleep.

  2. Regulates muscle contraction and prevents cramps.

  3. Improves cognitive function and reduces mental fatigue.

  4. Contributes to a good mood and emotional stability.

At ZZEN Labs we use magnesium bisglycinate, one of the forms with the highest absorption and best digestive tolerance, in the formula of our nootropic ZZEN Sleep, designed to support restorative, natural rest.

But we've also launched our Magnesium 7+. The only magnesium supplement formulated with 7 essential salts, selected for bioavailability and function. With your daily dose of ZZEN magnesium you cover 67% of the Nutrient Reference Values (NRV).

[es] Suplemento de magnesio

Magnesium 7+ | 7 magnesium salts

27,90 € View Magnesium 7+ | 7 magnesium salts →

Ashwagandha or magnesium: which is better

The short answer is: it depends on your goal. Ashwagandha acts as an adaptogen that modulates stress progressively, while magnesium has a direct, calming effect on the nervous system. They aren't mutually exclusive, but complementary.

Aspect

Ashwagandha

Magnesium

What it is

Adaptogenic plant

Essential mineral

How it acts

Regulates cortisol progressively

Direct calming effect on the nervous system

Best for

High sustained mental or emotional load

Relaxing the body at the end of the day and sleeping better

Form we use

KSM-66® (600 mg)

Magnesium bisglycinate

ZZEN formula

ZZEN Calm

ZZEN Sleep


In other words: if you need to adapt to situations of high mental or emotional load, such as exams, work or persistent anxiety, ashwagandha may be your best ally. If what you're looking for is to relax the body at the end of the day and sleep better, magnesium can make the difference.

Can they be taken together

Yes, taking ashwagandha and magnesium together can enhance their effects. Several studies suggest that their combination is safe and can have a synergistic effect: ashwagandha reduces cortisol and improves adaptive capacity, while magnesium optimises the nervous and muscular response.

Both compounds complement each other in people with chronic stress, insomnia or mental fatigue.

How to incorporate ashwagandha and magnesium into your routine

At ZZEN Labs we have developed two separate formulas that let you benefit from these ingredients safely and based on science.

ZZEN Calm

Natural supplement with Ashwagandha KSM-66® (600 mg), Melissa dry extract (200 mg) and Saffron Extract (30 mg), designed to reduce stress, regulate cortisol and help you find calm amid the daily chaos.

Ideal for: moments of anxiety, mental overload, demanding days or before bed.

[es] Nootrópico ZZEN Calm

ZZEN CALM | Ashwagandha KSM-66

29,90 € View ZZEN CALM | Ashwagandha KSM-66 →

ZZEN Sleep

Contains magnesium bisglycinate, L-tryptophan, valerian, vitamin B6 and GABA, designed to support deep, quality rest.

Ideal for: people with sleep problems, occasional insomnia or irregular rest cycles.

[es] Bote ZZEN Sleep

ZZEN SLEEP | Tryptophan and GABA

29,90 € View ZZEN SLEEP | Tryptophan and GABA →

Magnesium 7+

Formulated with magnesium bisglycinate (Albion®), magnesium malate (Albion®), magnesium carbonate, magnesium citrate, magnesium taurate, magnesium glycerophosphate and magnesium gluconate to reduce tiredness and fatigue and help your body and mind recover better. 

[es] Suplemento de magnesio

Magnesium 7+ | 7 magnesium salts

27,90 € View Magnesium 7+ | 7 magnesium salts →

*Extra tip: if you're going to combine them, respect each one's time of day. Ashwagandha works on the stress response over weeks, while magnesium performs better in the hours before bed, when the body needs to slow down.

Frequently asked questions about ashwagandha and magnesium

Can I take ZZEN Calm and ZZEN Sleep on the same day

Yes, they're designed to be taken at different times of the day. ZZEN Calm during the afternoon or when you need to reduce stress, and ZZEN Sleep before bed.

What's the difference between magnesium glycinate and other forms

Magnesium glycinate is a form of magnesium chelated with glycine, known for its high absorption and excellent digestive tolerance. It's ideal for supporting relaxation of the nervous system without causing gastrointestinal discomfort, as can happen with other less bioavailable forms such as magnesium oxide or citrate.

Is ashwagandha safe for long-term use

Yes, as long as the recommended doses are respected. It's also advisable to take periodic breaks from its use, according to each product's guidelines.

Why the ZZEN Labs approach starts here

Neither ashwagandha nor magnesium are miracle solutions. But when they're integrated within a realistic wellbeing approach that includes healthy habits, adequate rest and stress management, they can be key allies for improving your quality of life.

“No ingredient replaces a good habit. What it does is support it when it's hardest to keep up.”

At ZZEN Labs we're committed to natural nootropics, formulated with high-quality ingredients and backed by science. Products designed to help you perform better without giving up your mental health or resorting to artificial solutions.

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If you have any questions about anything you've seen, please contact our friendly support team.

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