For mood and brain health, Magnesium L-Threonate is often considered best as it uniquely crosses the blood-brain barrier to boost brain magnesium levels, improving cognition, memory, and potentially mood/anxiety, while Magnesium Glycinate (or Taurate) is excellent for calming effects, sleep, and stress relief due to the relaxing amino acid glycine, with whole foods always being a great foundation.
Magnesium glycinate – Gentle on the stomach and calming; may help with sleep, stress and anxiety. Magnesium L-threonate – A newer form that crosses the blood-brain barrier. May support memory and mood.
The recommended daily dosage depends on your gender and age: For men: 400 mg for ages 19 to 30, 420 mg for ages 31 and older. For women: 310 mg for ages 19 to 30, 320 mg for ages 31 and older. For children: 80 mg for ages 1 to 3 years, 130 mg for ages 4 to 8 years, 240 mg for ages 9 to 13 years.
For pregnancy, the best magnesium supplements are easily absorbed forms like Magnesium Glycinate (great for sleep/relaxation, gentle) or Magnesium Citrate (good absorption, helps constipation), while Magnesium Oxide is poorly absorbed. Always consult your doctor before starting any supplement, as they can advise on the right type and dosage (around 350-400mg daily), often finding it helps with leg cramps, sleep, and blood sugar, but dietary sources are key.
While all forms of magnesium have their benefits, magnesium L-threonate is the most effective for brain health. Its unique ability to cross the blood-brain barrier and directly impact cognitive function sets it apart from other forms of magnesium.
Magnesium glycinate
Along with those reasons, this type of magnesium is often recommended for anxiety because it's well-absorbed and may help reduce stress levels.
Choose a complex if you want comprehensive magnesium support, or glycinate if you specifically need better sleep and stress support with minimal digestive effects.
Glycine is known for its sleep-promoting effect1,4, so magnesium glycinate may offer better support with sleep and stress compared to citrate. Similarly, magnesium glycinate is believed to play a key role in regulating the nervous system1, supporting stress relief and helping you to get a more restful sleep4.
4. Magnesium Malate. May be helpful for fibromyalgia and chronic fatigue.
With Magnesium L-Threonate
Scientists from top-tier universities developed Magnesium L-Threonate, aka “the brain magnesium”, to specifically cross the blood-brain barrier.
Individuals with diabetes, intestinal disease, heart disease, or kidney disease should avoid magnesium unless specifically instructed by their healthcare provider. Overdose: Signs of a magnesium overdose include nausea, diarrhea, low blood pressure, muscle weakness, and fatigue.
Magnesium Glycinate – This is one of the most recommended types for ADHD. It's gentle on the stomach, absorbs well, and has calming properties that may help with anxiety, irritability, and sleep.
Magnesium bisglycinate is involved in numerous metabolic processes, including glucose metabolism, insulin sensitivity, and carbohydrate metabolism. Adequate magnesium levels may help regulate blood sugar levels, support healthy metabolism, and reduce the risk of metabolic disorders like type 2 diabetes.
Based on the current data, magnesium taurate and magnesium glycinate are two of the better options that may help those with mental health conditions.
Case histories are presented showing rapid recovery (less than 7 days) from major depression using 125–300 mg of magnesium (as glycinate and taurinate) with each meal and at bedtime. Magnesium was found usually effective for treatment of depression in general use.
There isn't one single "best" brand, as it depends on your needs, but top-rated magnesium glycinate brands often praised for absorption, purity, and third-party testing include Thorne (Magnesium Bisglycinate Powder) for quality, MegaFood for overall absorption, and brands like Simple Science or Nested Naturals for sleep support. Look for brands with certifications (like NSF Certified for Sport) and ingredients like magnesium bisglycinate (highly absorbable), often combined with other forms for enhanced benefits, especially for sleep.
Your body needs magnesium to function normally. Symptoms of magnesium deficiency include low appetite, nausea or vomiting, muscle spasms or tremors and abnormal heart rhythms. A blood test or urine test can be used to diagnose magnesium deficiency. Magnesium deficiency is usually treated with supplements.
Magnesium L-Threonate excels in supporting brain health, while Magnesium Glycinate shines for relaxation, sleep, and muscle recovery. Whether you choose one or both, incorporating magnesium into your daily routine can significantly enhance your overall well-being.
Which vitamins and minerals can help with tiredness and fatigue?
High doses of magnesium glycinate may cause diarrhea, gas, or stomach pain. Very high or long-term use can lead to magnesium toxicity. People with kidney or heart disease, or certain neuromuscular conditions, should avoid it without consulting a doctor.
Magnesium glycinate is one of the most popular and well-tolerated forms of magnesium for people struggling with anxiety or insomnia. How it works: This form is bound to glycine, an amino acid that naturally promotes relaxation and improves sleep quality. Benefits: Reduces stress and physical tension.
Yes! And for some people, this combination can be highly effective. Taking both allows you to experience the calming, muscle-supportive effects of glycinate while still promoting digestive regularity with citrate. If you go this route, aim to separate the doses: take citrate in the morning and glycinate in the evening.
Magnesium glycinate, also known as magnesium diglycinate or magnesium bisglycinate, is the magnesium salt of glycinate. The compound is sold as a dietary supplement. It contains 14.1% elemental magnesium by mass.
Magnesium for Energy Production and Fighting Fatigue
Magnesium can also reduce feelings of stress, which can drain energy reserves. Best Time to Take: Morning or early afternoon. Taking magnesium in the morning with breakfast or in the early afternoon helps you take advantage of its energizing effects.
If you're taking magnesium to help with both anxiety and sleep, the best choice is likely magnesium glycinate or magnesium L-threonate. These formulations combine magnesium with amino acids that may help with relaxation and sleep.