Which Form of Magnesium is Best for Me?
on November 05, 2025

Which Form of Magnesium is Best for Me?

Magnesium is an essential mineral involved in over 300 biochemical reactions in the body. It influences muscle function, nerve transmission, bone health, and energy production. With so many various forms of magnesium supplements available, choosing the right one can be daunting. Here, we compare three distinct forms of magnesium, to help you determine which might best suit your needs.

Source and Composition:​

Magnesium Bisglycinate is a chelated form of magnesium, meaning it is bound to the amino acid glycine for enhanced absorption and bioavailability. This structure allows it to be easily transported into the body without relying on stomach acid for digestion. This makes it one of the most efficiently absorbed forms of magnesium. Each serving provides 379mg of elemental magnesium, offering a highly effective dose. The NHS recommends a minimum of 270mg daily for women, and 300mg for men.

Benefits:

One of the biggest advantages of Magnesium Bisglycinate is its gentleness on the stomach. Unlike some other forms of magnesium, which can cause digestive discomfort or have a laxative effect, Bisglycinate is well-tolerated, making it a great option for daily supplementation. Its high bioavailability ensures that more magnesium is effectively absorbed and utilised by the body, helping to support muscle function, nerve health, bone strength, and energy production.

Magnesium plays a significant role in reducing stress, promoting relaxation, and improving sleep quality, the glycine component also has calming properties, which may enhance magnesium’s ability to support restful sleep and reduce anxiety levels. This makes it a versatile choice for those looking to maintain overall wellbeing.

Best for:

Magnesium Bisglycinate is an excellent all-rounder, suitable for those looking for a highly bioavailable and easily digestible magnesium supplement. Its gentle nature makes it ideal for individuals with sensitive stomachs or digestive issues, while its wide-ranging benefits support muscle recovery, relaxation, sleep, bone health, and overall energy levels. Whether you’re an athlete, someone managing stress, or simply looking for a reliable magnesium supplement for everyday wellness, Magnesium Bisglycinate is a well-balanced choice that covers all bases.

  • Magnesium Bisglycinate – 379mg Elemental Magnesium – Superior Absorption NovoMin® – 120 Capsules
  • time health magnesium bisglycinate supplement bottle with nutritional information label on a white background
  • Magnesium Bisglycinate – Superior Absorption & Stomach Gentle - NovoMin® - Relaxation & Nerves
  • Magnesium Bisglycinate supports nerve health, bones, sleep, relaxation, muscles. Made with premium US brand NovoMin, gentle on Digestion, and provides 101% NRV of Magnesium | Hover
  • Magnesium Bisglycinate – Superior Absorption & Stomach Gentle - NovoMin® - Relaxation & Nerves
  • Magnesium Bisglycinate – 379mg Elemental Magnesium – Superior Absorption NovoMin® – 120 Capsules

Magnesium Bisglycinate – Superior Absorption & Stomach Gentle - NovoMin® - Relaxation & Nerves

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✔️SUPPORTS MUSCLE FUNCTION AND RELAXATION. Known for its calming effects, Magnesium Bisglycinate aids in managing stress symptoms, promoting restful sleep, and supporting healthy muscle and nerve function, making it ideal for relaxation and recovery.

✔️ENHANCED ABSORPTION AND EASY ON THE STOMACH. Magnesium Bisglycinate is a chelated form of magnesium, meaning it is bound to the amino acid glycine to support better absorption in the body. This structure makes it highly bioavailable and gentle on the digestive system, reducing the risk of the laxative effect commonly associated with other forms of magnesium.

✔️101% OF NUTRIENT REFERENCE Value. Our recommended 4 capsule serving provides 379mg of elemental magnesium, delivering over 100% of the Nutrient Reference Value (NRV). Magnesium is an essential nutrient which supports a wide range of essential functions, including normal muscle and nerve activity, energy release, and the reduction of tiredness and fatigue.

✔️MADE WITH PREMIUM US BRAND NOVOMIN®. Our Magnesium Bisglycinate is made with NovoMin®, a premium-grade ingredient developed by US-based manufacturer NovoTech®. NovoMin® is produced to rigorous standards, and is both in-house and third-party tested to ensure quality and traceability. Unlike many generic magnesium supplements produced overseas with limited oversight, our ingredient meets rigorous standards for safety and efficacy, providing a more reliable and effective form of daily magnesium.

✔️UK MADE TO HIGH QUALITY GMP STANDARDS. Our Magnesium Bisglycinate is manufactured in the UK to GMP standards, ensuring the highest quality.

✔️100% VEGAN WITH NO ARTIFICIAL FILLERS, BINDERS OR ADDITIVES. At Time Health we believe in clean nutrition which is why you won’t find any nasty stuff in our products including any binders, synthetic fillers or additives, unlike some of our competitors.

Magnesium Bisglycinate has been shown to work synergistically with Apigenin and L-Theanine for sleep and relaxation support.

Disclaimer: These statements have not been evaluated by any official health authority. These products are not intended to diagnose, treat, cure, or prevent any disease.

Customer reviews on our site are provided for informational purposes only and are not intended to diagnose, treat, cure or prevent any illness or disease.

Source and Composition:​

Marine Magnesium is derived from purified seawater, providing a natural source of magnesium. It also contains essential trace minerals not typically found in synthetic supplements.

Benefits:

This formula also includes trace minerals, which may enhance overall mineral balance in the body. This form of magnesium supports muscle relaxation, nerve function, and bone health.

Best for:

Marine Magnesium may be most appealing to individuals seeking a natural, wholefood-based magnesium supplement.

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  • Marine Magnesium Purified Sea Water & Trace Minerals 308mg of Magnesium 120 Capsules
  • Marine Magnesium Purified Sea Water & Trace Minerals 308mg of Magnesium 120 Capsules
  • Natural Magnesium from Sea Water & Marine Trace Minerals - 1 a day
  • Marine Magnesium Purified Sea Water & Trace Minerals 308mg of Magnesium 120 Capsules
  • Marine Magnesium Purified Sea Water & Trace Minerals 308mg of Magnesium 120 Capsules
  • Marine Magnesium - Hear from our Nutritionist
  • Natural Magnesium from Sea Water & Marine Trace Minerals - 1 a day

Natural Magnesium from Sea Water & Marine Trace Minerals - 1 a day

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✔️HEALTH BENEFITS. Magnesium is an essential mineral which is important for a number of functions within the body including energy metabolism, mineral homeostasis, neuromuscular and endocrine functions. Our magnesium contributes to reduced tiredness, psychological function, natural protein synthesis and the maintenance of healthy bones and teeth.

✔️Time Health’s Marine Magnesium is a purified sea water extract with a unique mineral profile due to its specific geographical origin in Europe. Our magnesium goes through a gentle and solvent free extraction process and contains all 5 natural forms of magnesium: oxide, hydroxide, sulfate, carbonate, chloride and also contains many naturally occurring essential trace minerals.

✔️100% VEGAN WITH NO FILLERS, BINDERS OR ADDITIVES. We believe in clean nutrition which is why you won’t find any nasty stuff in our products, unlike some of our competitors.

✔️UK MADE & HIGH QUALITY. This product is manufactured in the UK to GMP standards, ensuring the highest quality.

✔️REVOLUTIONARY ECO-FRIENDLY, PULLULAN CAPSULES. Many cheaper supplements use capsules made from plant cellulose which goes through heavy processing and produces non-environmentally friendly, harmful by-products. Pullulan is the next generation in encapsulation, derived from tapioca and processed with water.

To find out more about marine magnesium, visit our knowledge base.

Please note: packaging may vary.

Disclaimer:

These statements have not been evaluated by any official health authority. These products are not intended to diagnose, treat, cure, or prevent any disease.

Customer reviews on our site are provided for informational purposes only and are not intended to diagnose, treat, cure or prevent any illness or disease.

Source and Composition:

Magnesium L-Threonate is a clinically studied form of magnesium designed specifically for brain health. Unlike other forms of magnesium, which primarily support muscles and metabolic functions, L-Threonate can cross the blood-brain barrier (BBB), increasing magnesium levels in the brain more effectively. This makes it a good choice for those specifically looking for cognitive function and neuroprotection.

Benefits:

Magtein® is a clinically proven formulation of Magnesium L-Threonate, with research suggesting it can enhance memory, learning, and overall cognitive performance. By increasing magnesium levels in the brain, it supports neuroplasticity, which is necessary for learning. Some studies suggest that it may also help slow age-related cognitive decline and support long-term brain health.

Additionally, Magnesium L-Threonate works synergistically with Apigenin and L-Theanine, a combination recommended by Dr. Andrew Huberman for promoting relaxation, reducing stress, and improving sleep quality.

Best For:

Magnesium L-Threonate is a good choice for those whose main concern is cognitive function and overall brain health. Its ability to increase brain magnesium levels makes it especially popular among those concerned about age-related cognitive decline or seeking to maintain mental sharpness. Like Magnesium Bisglycinate, it is also well-suited for people who struggle with stress, anxiety, or poor sleep, as it promotes relaxation and recovery without causing drowsiness.

What does ‘Elemental Magnesium’ mean in the ingredients?

Because magnesium reacts easily with oxygen, it always occurs naturally as part of a compound. Elemental magnesium refers to the amount of pure magnesium (Mg) within that compound that your body can absorb and use.

For example: 3160mg of Magnesium Bisglycinate provides 379mg of (elemental) magnesium. Nutrient Reference Values (NRVs) are based on elemental magnesium, so this is the figure to look for when comparing products or checking how much you are getting each day.

Featured product

  • Bottle of Time Health Magtein Magnesium L-Threonate supplement on a white background
  • Magnesium L-Threonate - Magtein® - High Strength 2100mg - Cognitive & Sleep Support
  • Magnesium L-Threonate - Magtein® - High Strength 2100mg - Cognitive & Sleep Support
  • Time Health Magtein Magnesium L-Threonate | Hover
  • Magnesium L-Threonate - Magtein® - High Strength 2100mg - Cognitive & Sleep Support
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  • Magnesium L-Threonate - Magtein® - High Strength 2100mg - Cognitive & Sleep Support
  • Magnesium L-Threonate - Magtein® - High Strength 2100mg - Cognitive & Sleep Support
  • Magnesium L-Threonate - Magtein® - High Strength 2100mg - Cognitive & Sleep Support

Magnesium L-Threonate - Magtein® - High Strength 2100mg - Cognitive & Sleep Support

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✔️ COGNITIVE SUPPORT INCLUDING LEARNING, MEMORY, MOOD, RELAXATION & SLEEP. Developed by MIT researchers, magnesium L-threonate has been shown to reverse clinical measures of brain ageing by nine years. Having sufficient levels of circulating magnesium in the brain is critical to cognitive health. Magtein Magnesium L-Threonate can effectively raise these levels resulting in improved recall, reduced age-related memory issues, and relaxation by increasing gamma-aminobutyric acid (GABA) levels.

✔️ SUPERIOR BIOAVAILABILITY. Many forms of magnesium are poorly absorbed by the body. Magtein Magnesium L-Threonate is the only high absorption magnesium that’s been shown to effectively raise concentrations in the brain. What isn’t used by the brain is distributed to various areas of the body, where it assists in regulating heart and lung function, muscular contractions, hydration, and more than 300 other vital processes.

✔️ RECOMMENDED BY EXPERTS. Leading neuroscientist Dr. Andrew Huberman recommends taking Magnesium L-Threonate as part of the ‘sleep cocktail’, a combination of powerful supplements (L-Theanine, Magnesium L-Threonate and Apigenin) that work synergistically to improve the quality and duration of sleep.

✔️ UK MADE TO HIGH QUALITY GMP STANDARDS. Our Magnesium L-Threonate is manufactured in the UK to GMP standards, ensuring the highest quality.

✔️ 100% VEGAN WITH NO FILLERS, BINDERS OR ADDITIVES. At Time Health we believe in clean nutrition which is why you won’t find any nasty stuff in our products including any binders, fillers or additives, unlike some of our competitors. Magnesium L-Threonate has been shown to work synergistically with Apigenin and L-Theanine

Disclaimer: These statements have not been evaluated by any official health authority. These products are not intended to diagnose, treat, cure, or prevent any disease. Customer reviews on our site are provided for informational purposes only and are not intended to diagnose, treat, cure or prevent any illness or disease.

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