Nootropic profile
Magnesium Glycinate
Magnesium glycinate is a highly bioavailable, chelated form of magnesium bound to the amino acid glycine, renowned for its superior absorption and gentle effect on the digestive system. It is widely used to support sleep quality, reduce stress and anxiety, and enhance cognitive function.
Best for
Educational only: this is not medical advice. Always check with a qualified healthcare professional before starting any supplement.
What is Magnesium Glycinate?
Magnesium glycinate is a chelated mineral supplement that combines magnesium with glycine, the smallest and simplest amino acid in the body.
What it does for you
Community and editorial ratings, out of 5:
How to take it
- General Health Maintenance: 200–400 mg elemental magnesium daily, typically split into two doses with meals.
- Sleep Support: 300–500 mg elemental magnesium taken 30–60 minutes before bedtime.
- Stress and Anxiety Management: 300–600 mg elemental magnesium daily, divided into 2–3 doses with meals.
- Cognitive Enhancement: 200–400 mg elemental magnesium daily, preferably with breakfast and dinner.
Watch out for
- Mild Digestive Effects: Whilst notably gentler than other magnesium forms, excessive doses may still cause nausea, diarrhoea, or stomach cramps. These...
- Medication Interactions: Magnesium can form insoluble complexes with tetracycline and quinolone antibiotics, reducing absorption. May also interact with...
- Kidney Function: Individuals with impaired kidney function should consult healthcare providers before supplementing, as reduced renal clearance can lead to...
- Pregnancy and Lactation: Pregnant and breastfeeding women require higher magnesium intake (350–400 mg/day). Magnesium glycinate is often recommended for...
The science, if you're curious.
- Magnesium acts as a voltage-dependent blocker of NMDA receptors, regulating glutamate signalling and preventing excitotoxicity. The glycine component...
- Magnesium supports the production and function of GABA, the brain's primary inhibitory neurotransmitter. Glycine also functions as an inhibitory...
- Magnesium helps regulate the hypothalamic-pituitary-adrenal (HPA) axis, modulating cortisol release and improving stress resilience.
- Magnesium serves as a cofactor for enzymes involved in melatonin synthesis and regulates circadian clock gene expression, promoting healthy sleep onset.
Where to find it
- Dietary Sources: Dark leafy greens (spinach, Swiss chard, kale), nuts and seeds (almonds, cashews, pumpkin seeds), legumes, whole grains, fatty fish, dark chocolate (70%+ cacao), and avocados.
- Supplement Forms: Magnesium glycinate is available in capsule and powder formulations. Other bioavailable forms include magnesium L-threonate (cognitive benefits), magnesium taurate (cardiovascular support), and magnesium malate (energy production).
The research
Frequently asked
Magnesium glycinate is a highly bioavailable, chelated form of magnesium bound to the amino acid glycine, renowned for its superior absorption and gentle effect on the digestive system. It is widely used to support sleep quality, reduce stress and anxiety, and enhance cognitive function.
The main benefits people report from Magnesium Glycinate are: Anxiety & Calm, Cognitive Enhancement, Energy, Focus, Memory, Mood, Sleep, Stress Relief.
General Health Maintenance: 200–400 mg elemental magnesium daily, typically split into two doses with meals.Sleep Support: 300–500 mg elemental magnesium taken 30–60 minutes before bedtime.Stress and Anxiety Management: 300–600 mg elemental magnesium daily, divided into 2–3 doses with meals.Cognitiv...
Mild Digestive Effects: Whilst notably gentler than other magnesium forms, excessive doses may still cause nausea, diarrhoea, or stomach cramps. These...Medication Interactions: Magnesium can form insoluble complexes with tetracycline and quinolone antibiotics, reducing absorption. May also interact...
Magnesium acts as a voltage-dependent blocker of NMDA receptors, regulating glutamate signalling and preventing excitotoxicity. The glycine component...Magnesium supports the production and function of GABA, the brain's primary inhibitory neurotransmitter. Glycine also functions as an inhibitor...
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