Dryden notes that magnesium not only supports GABA production but also plays a role in converting tryptophan, an amino acid, into serotonin. This serotonin is then transformed into melatonin, a hormone vital for sleep as it signals to our body that nighttime has arrived and regulates our internal clock, or circadian rhythm.
“While magnesium doesn’t directly create melatonin, it’s crucial for facilitating that process. Without enough magnesium, things might not work as smoothly,” Dryden explains.
Research indicates that magnesium can enhance sleep quality by shortening the time taken to fall asleep and minimizing nighttime awakenings. A 2021 study featured in Sleep, which involved about 4,000 participants, supports this, revealing that those who added magnesium to their diet experienced improved sleep quality compared to those who did not.
7 magnesium-rich foods to consider for your diet
As noted earlier, obtaining magnesium through food rather than supplements is generally preferable, as it often means you’re getting additional essential nutrients as well. The magnesium-rich foods listed below also provide other nutrients that can help with sleep and mood.
1. Pumpkin seeds
Both Pratt and Dryden rank pumpkin seeds as the top source of magnesium for enhancing mood and sleep. They contain more magnesium than any other food, with 156 milligrams per serving, which is about 37% of the daily recommended intake. “Pumpkin seeds have tryptophan too, an amino acid that aids relaxation and sleep,” Dryden says. If you’re not carving pumpkins this fall, you’ll find pumpkin seeds readily available in grocery stores—even as a crunchy addition to salads, oatmeal, or yogurt.
2. Chia seeds
Chia seeds are another excellent source of magnesium. “Two tablespoons provide a solid amount of magnesium,” Dryden points out. In addition to magnesium, these tiny seeds are packed with omega-3 fatty acids, essential for brain function and reducing inflammation—factors that help in managing anxiety and depression.
3. Leafy greens
Kriegler suggests leafy greens as a magnesium-rich choice because they’re highly versatile and loaded with other important nutrients, including fiber. You might already know that fiber is critical for gut health. Given the strong link between gut health and brain health, a flourishing microbiome is essential for maintaining mood. A 2023 article in Nutritional Neuroscience underscores the association between a high-fiber diet and a reduced risk of depression.
