Increase dietary magnesium through food first

Dark leafy greens, pumpkin seeds, legumes, and dark chocolate are reliable dietary magnesium sources.

Why it works

Food-based magnesium comes packaged with co-nutrients (fiber, polyphenols, potassium) that have their own positive effects on nervous system function. The absorption rate of magnesium from whole foods is moderate (30–40%) but comes without the gastrointestinal side effects of high-dose supplements. Adequate dietary magnesium also reduces the cofactor competition that can occur when one micronutrient is supplemented in isolation.

How to do it

1. Eat a daily serving of one high-magnesium food: one ounce of pumpkin seeds (156 mg), one cup of cooked spinach (~157 mg), or half a cup of black beans (~60 mg).
2. Dark chocolate (70%+) provides ~65 mg per ounce and is a practical addition.
3. Note that phytic acid in unsoaked legumes and grains reduces magnesium absorption — soaking or sprouting improves it.
4. Prioritize whole food magnesium sources before adding supplements.

Evidence

Dietary magnesium intake is associated with lower rates of depression and anxiety in observational studies; food sources are the recommended first approach before supplementation. (observational)

Observational associations; confounders (diet quality, socioeconomic status) are plausible. Food sources are unlikely to reach the doses used in clinical supplementation trials.

Sources

• Derom et al. (2013), Magnesium and depression: a systematic review, Nutritional Neuroscience

Common mistake

Assuming supplements are always stronger than food sources — for magnesium, whole food sources have better tolerability and come with synergistic nutrients that supplements lack.