Many people take magnesium glycinate or omega-3 supplements to support their health, but combining the two may offer even greater benefits. While they work in different ways, both nutrients play important roles in supporting the body, particularly when it comes to muscle function, brain health, heart health and overall wellbeing.
Magnesium glycinate is valued for its high absorption and gentle effect on the stomach, while omega-3 fatty acids are best known for supporting heart, brain and eye health. Together, they can form part of a balanced supplement routine designed to support everyday health.
In this guide, we'll explore why magnesium glycinate and omega-3 complement each other, their individual benefits and how to take them safely.
What Is Magnesium Glycinate?
Magnesium glycinate is a form of magnesium made by combining magnesium with the amino acid glycine.
This form is known for being highly bioavailable, meaning it is well absorbed by the body. It is also less likely to cause digestive discomfort than some other forms of magnesium. ¹
Magnesium contributes to more than 300 enzymatic processes within the body and supports:
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Normal muscle function
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Nervous system function
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Normal psychological function
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Energy-yielding metabolism
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Reduction of tiredness and fatigue ²
What Is Omega-3?
Omega-3 refers to a group of essential fatty acids that the body cannot produce in sufficient amounts on its own.
The three main types are:
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EPA (eicosapentaenoic acid)
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DHA (docosahexaenoic acid)
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ALA (alpha-linolenic acid)
EPA and DHA are found mainly in oily fish and marine oils, while ALA is present in plant foods such as flaxseed and walnuts.
According to the European Food Safety Authority, DHA contributes to the maintenance of normal brain function and vision, while EPA and DHA contribute to the normal function of the heart when consumed in sufficient amounts. ³
Why Magnesium Glycinate and Omega-3 Work Well Together
Although magnesium and omega-3 perform different roles, they support many of the same body systems.
Together they may help support:
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Heart health
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Brain function
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Muscle recovery
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Nervous system function
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Overall wellbeing
Rather than replacing one another, they provide complementary nutritional support that can fit into a balanced lifestyle.
Supporting Heart Health
Heart health is one of the most common reasons people choose both magnesium and omega-3 supplements.
Magnesium contributes to normal muscle function, including the muscles involved in everyday bodily processes, while omega-3 fatty acids EPA and DHA contribute to the normal function of the heart. ² ³
Maintaining a healthy diet, regular physical activity and not smoking remain the most important factors for cardiovascular health, with supplements providing additional nutritional support where appropriate.
Supporting Brain Function
Both nutrients play important roles in supporting the nervous system. Magnesium contributes to normal psychological function and normal functioning of the nervous system. ²
DHA contributes to the maintenance of normal brain function, making omega-3 an important nutrient for cognitive health. ³
Together, these nutrients may support:
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Everyday focus
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Cognitive performance
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Mental wellbeing
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Healthy ageing
Supporting Sleep and Relaxation
Magnesium glycinate is commonly chosen by people looking to support relaxation because glycine itself has been studied for its role in sleep quality.
While omega-3 is not a sleep supplement, some emerging research suggests adequate omega-3 intake may also support healthy sleep patterns, although more evidence is needed. ⁴
Combined with healthy sleep habits, both nutrients can contribute to an overall wellness routine.
Supporting Muscle Function and Recovery
Active individuals often include both magnesium and omega-3 in their nutrition plans.
Magnesium contributes to normal muscle function and electrolyte balance, while omega-3 fatty acids have been studied for their potential role in exercise recovery and muscle health. ² ⁵
Although research is ongoing, maintaining adequate intake of both nutrients may support an active lifestyle.
Can You Take Magnesium Glycinate and Omega-3 Together?
Yes. For most healthy adults, magnesium glycinate and omega-3 supplements can be taken together.
There are no well-established interactions between the two, and they are commonly included as part of a daily supplement routine.
Many people choose to:
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Take omega-3 with a meal containing fat to aid absorption.
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Take magnesium glycinate in the evening if it fits their routine.
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Follow the dosage instructions on each product.
If you take prescription medication or have an existing medical condition, speak to a healthcare professional before starting new supplements.
| Benefit | Magnesium Glycinate | Omega-3 | Together |
|---|---|---|---|
| Heart Health | ✓ | ✓ | ✓✓ |
| Brain Function | ✓ | ✓ | ✓✓ |
| Muscle Function | ✓ | — | ✓ |
| Sleep Support | ✓ | Emerging evidence | ✓ |
| Nervous System Support | ✓ | ✓ | ✓✓ |
Who May Benefit from This Combination?
Taking magnesium glycinate alongside omega-3 may appeal to:
Busy Professionals
Individuals looking to support focus, wellbeing and overall health.
Active Individuals
People seeking nutritional support for muscles and recovery.
Older Adults
Those wanting to support heart, brain and muscle health as part of healthy ageing.
Individuals Looking to Support General Wellness
Many people include both supplements as part of a balanced diet and healthy lifestyle.
Lifestyle Habits That Maximise the Benefits
Supplements work best alongside healthy daily habits.
For long-term wellbeing, focus on:
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Eating a balanced diet
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Including oily fish at least once a week
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Staying physically active
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Prioritising quality sleep
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Managing stress
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Staying hydrated
Magnesium glycinate and omega-3 should be viewed as part of a wider approach to supporting health.
Why Magnesium Glycinate and Omega-3 Make a Smart Combination
Magnesium glycinate and omega-3 support many of the same body systems while providing different nutritional benefits.
Magnesium contributes to muscle function, nervous system health and energy metabolism, while omega-3 fatty acids support normal heart function and help maintain healthy brain function.
Together, they can form a simple, evidence-based supplement combination that complements a healthy lifestyle and supports everyday wellbeing.
FAQ’s
Can I take magnesium glycinate and omega-3 together?
Yes. They are generally considered safe to take together when used according to the manufacturer's instructions.
Should I take magnesium and omega-3 at the same time?
They can be taken together, although many people prefer taking omega-3 with meals and magnesium glycinate later in the day. Consistency is generally more important than timing.
What are the benefits of taking magnesium glycinate and omega-3 together?
The combination may help support heart health, brain function, muscle function, nervous system health and overall wellbeing as part of a balanced diet.
Does magnesium affect omega-3 absorption?
There is no strong evidence to suggest magnesium negatively affects omega-3 absorption when taken together.
Who should avoid these supplements?
Individuals who are pregnant, breastfeeding, taking medication or managing a medical condition should seek advice from a healthcare professional before starting new supplements.
