Can you take magnesium and L-theanine together?
Matthew Barrera
Updated on April 20, 2026
“A combination of magnesium with L-Theanine (an amino acid) will ease the tension in the physical body and settle anxiety as L-Theanine supports the production of calming neurotransmitters. Take this combination now twice daily rather than waiting until you feel tense or anxious.”
What supplements should not be taken with magnesium?
Large doses of minerals can compete with each other to be absorbed. Don't use calcium, zinc, or magnesium supplements at the same time. Also, these three minerals are easier on your tummy when you take them with food, so if your doctor recommends them, have them at different meals or snacks.Does L-theanine interact with anything?
L-theanine may interact with the following drugs and supplements: drugs for the treatment of high blood pressure. other supplements that lower blood pressure. stimulants, such as those that doctors use to treat attention deficit hyperactivity disorder (ADHD)What is better L-theanine or magnesium?
L-theanine also increases GABA, serotonin, and dopamine levels, which all help to promote relaxation. Magnesium, on the other hand, is a nutrient regulates muscles and nerves, blood sugar levels, and blood pressure, according to the National Institutes of Health Office of Dietary Supplements.What medications should not be taken with L-theanine?
Theanine might work to slow down the nervous system. Taking theanine along with stimulant medications might decrease the effectiveness of stimulant medications. Some stimulant drugs include diethylpropion (Tenuate), epinephrine, phentermine (Ionamin), pseudoephedrine (Sudafed), and many others.Effects of magnesium L-threonate on the brain: animal vs. human evidence | Rhonda Patrick
When should I take L-theanine morning or night?
The Best Time of Day to Take L-TheanineIf you're using l-theanine to boost cognitive function during the day, it's best to take l-theanine about 30 minutes (in capsule or pill form) before your morning coffee. You can also add it as a powder to your cup of coffee.
Can L-theanine make anxiety worse?
L-Theanine: A Natural Supplement for Anxiety? Studies show that increasing intake of theanine can significantly reduce symptoms of anxiety, such as a racing heartbeat and increased secretion of immunoglobulin A in saliva.What supplements should not be taken together?
Here are six vitamin combinations you definitely shouldn't take together.
- Magnesium and calcium/multivitamin. ...
- Vitamins D, E and K. ...
- Fish Oil & Gingko Biloba. ...
- Copper and zinc. ...
- Iron and Green tea. ...
- Vitamin C and B12.
Is it OK to take L-theanine long term?
Conclusion: Our study suggests that chronic (8-week) l-theanine administration is safe and has multiple beneficial effects on depressive symptoms, anxiety, sleep disturbance and cognitive impairments in patients with MDD.Can you take B complex and magnesium together?
Can I take magnesium and vitamin B together? Yes, as B vitamins and magnesium don't compete for absorption inside your body. Indeed, many supplements combine them as a way of simplifying how you monitor your intake.What are the negative side effects of L-theanine?
There are no confirmed or direct side effects of consuming L-theanine. Generally speaking, it's safe to drink teas and take supplements that contain L-theanine.
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L-theanine risks and side effects
- nausea.
- upset stomach.
- irritability.