Magnesium is one supplement I consistently recommend, especially for active people. Many of us do not get enough magnesium daily, and this can have widespread effects because the mineral participates in hundreds of bodily functions and serves as a cofactor in more than 300 enzymatic reactions. If you’re not already using magnesium, consider adding a dietary supplement or topical option that fits your routine. Below I highlight key benefits and food sources to help you decide.
My interest in magnesium deepened after hearing Chervin Jafarieh of Cymbiotika on the Skinny Confidential podcast. I’ve tried different formulations and recently found magnesium L‑threonate to be helpful for my needs.
Mental health: Stress, anxiety, and depression.
Magnesium is essential for brain health and cognitive function. Because mental well‑being is less visible than physical signs, it’s easy to overlook—but magnesium plays a clear role in mood regulation. Deficiency can increase the body’s sensitivity to stress, and prolonged stress contributes to anxiety and depression. Low magnesium levels have been associated with a higher risk of depressive symptoms, so maintaining adequate intake is an important, often overlooked strategy for supporting mental health.
Physical health: Performance & inflammation.
Magnesium can support exercise performance by helping shuttle blood sugar into muscles and helping clear lactate, a byproduct that contributes to fatigue. For people who train frequently, supplementing magnesium may aid recovery and reduce markers of muscle damage. Beyond exercise, magnesium also influences inflammation. Insufficient magnesium intake is linked to higher levels of inflammatory markers, which are implicated in aging and chronic disease. Studies show magnesium can lower markers like CRP and interleukin‑6, contributing to reduced systemic inflammation.
Even when following an anti‑inflammatory diet, I rely on magnesium as an added layer of support. Managing dietary sugars and inflammatory fats helps, but magnesium complements those efforts by targeting biochemical pathways that influence inflammation and recovery.
Overall wellbeing.
Magnesium’s effects extend beyond mood and exercise. Adequate intake is associated with lower risk of hypertension and cardiovascular disease, may help prevent migraines, can ease premenstrual symptoms, and supports healthy sleep by addressing issues such as insomnia. Because magnesium participates in so many reactions throughout the body, keeping levels within a healthy range supports broad aspects of overall wellbeing.
Dietary Sources of Magnesium.
The recommended magnesium intake for most adults is roughly 300–400 mg per day. The following foods are good dietary sources of magnesium and can help you meet daily needs:
- Leafy green vegetables (spinach, kale)
- Nuts and seeds (almonds, pumpkin seeds)
- Legumes (beans, lentils)
- Whole grains (brown rice, quinoa)
- Fatty fish (salmon, halibut)
Notes on supplementation and use.
If dietary intake is insufficient or you have higher needs due to training, stress, or certain health conditions, supplementation can be a practical option. Different forms of magnesium (glycinate, citrate, L‑threonate, topical magnesium oils or sprays) have different absorption profiles and tolerability—magnesium citrate may have a mild laxative effect for some, while glycinate is often better tolerated for sleep and anxiety. Choose a form that matches your goals and consult a healthcare provider if you have kidney disease, are pregnant, or take medications that could interact with magnesium.
References
Research supports magnesium’s role across mental health, exercise performance, inflammation, cardiovascular health, migraine prevention, and sleep. Review current literature to find the most relevant studies for your interests and discuss supplementation with a qualified professional when appropriate.