Magnesium is one of the most talked-about minerals in Irish health shops, and for good reason. It is involved in over 300 enzymatic reactions in the body, plays crucial roles in energy production, nerve and muscle function, sleep quality, and stress resilience — yet many Irish adults don't get enough of it from diet alone.
To make things more complex, magnesium supplements come in multiple forms, each with different absorption rates and therapeutic emphases. This guide cuts through the confusion to help you understand which type of magnesium might suit your needs.
Magnesium is the fourth most abundant mineral in the human body. Its functions include:
Research suggests that a significant proportion of people in Western countries have inadequate magnesium intake, and Ireland is no exception. Contributing factors include:
This is where many people get confused. Magnesium supplements are available in many forms, each with different characteristics:
Best for: Sleep, anxiety, general supplementation, sensitive digestive systems
Magnesium bound to the amino acid glycine. This is one of the most bioavailable forms, meaning a higher proportion of the magnesium is absorbed. Glycine itself has calming properties, making this combination particularly suited to those using magnesium for sleep support or stress. Gentle on the digestive system and less likely to cause loose stools than other forms. Often considered the "gold standard" for quality supplementation.
Best for: General health, digestive support, occasional constipation
Magnesium bound to citric acid. Good bioavailability and widely available. Has a mild laxative effect at higher doses, which makes it useful for digestive regularity but means it should be started at lower doses. One of the most affordable high-quality forms.
Best for: Energy, fatigue, fibromyalgia, muscle pain
Magnesium bound to malic acid (found naturally in apples). Malic acid is involved in the Krebs cycle (energy production). This form is particularly popular with those experiencing chronic fatigue or muscle pain, and is sometimes used in the context of fibromyalgia support.
Best for: Brain health, cognitive function, memory
A newer form developed specifically to cross the blood-brain barrier more effectively than other magnesium forms. Some preliminary research suggests it may support cognitive function and memory. More expensive than other forms. Particularly relevant for those with cognitive health concerns or those interested in brain longevity.
Best for: Cardiovascular support, blood pressure, blood sugar
Magnesium combined with taurine, an amino acid with cardiovascular benefits of its own. This form is often used by those with cardiovascular concerns or those interested in blood sugar support.
Best for: Heartburn relief, short-term constipation (as a laxative)
The most common form in cheap supplements but has the lowest bioavailability — only about 4% is absorbed. Primarily used as an antacid or laxative. Not recommended as a daily magnesium supplement if the goal is to raise tissue magnesium levels.
Best for: Sore muscles, relaxation, transdermal absorption
Used in Epsom salt baths (actually magnesium sulphate) and magnesium oil/flakes. Some practitioners believe transdermal magnesium is well-absorbed, though the research on this is limited. Useful as an adjunct to oral supplementation. Magnesium flake baths are relaxing regardless of absorption effects.
A simple guide:
The EU Reference Nutrient Intake (RNI) for magnesium is 375mg daily. Therapeutic supplementation often ranges from 200mg to 400mg elemental magnesium daily. Always start with a lower dose and increase gradually to avoid digestive upset.
Note that the "elemental magnesium" is what matters, not the total weight of the compound. A 500mg capsule of magnesium citrate contains about 75mg elemental magnesium. Check labels carefully.
Find magnesium supplements in all forms at The Honey Pot Health Store
Shop at The Honey Pot → 📞 052-612 1457