People don't get enough magnesium — and it really matters at night
Magnesium is involved in over 300 biochemical reactions in the human body. It regulates nerve function, supports muscle recovery, governs the production of melatonin, and helps activate vitamin D. It is, by most measures, one of the most important minerals in human physiology.
An estimated 45% of Americans are deficient in it. The loss of magnesium during food refining is significant — white flour loses around 82%, polished rice 83%. The Western diet, built substantially on processed foods, has quietly stripped one of its most essential nutrients.
The sleep connection is where the evidence gets interesting. Magnesium binds to GABA receptors, dampening neural excitability and facilitating the onset and maintenance of sleep. It also suppresses calcium concentration within muscle cells, promoting relaxation, and has been shown to reduce cortisol — the stress hormone — while supporting melatonin production. These are not speculative mechanisms. They are well-documented pathways, and deficiency disrupts all of them.
The form matters more than most people realise. In trials, magnesium oxide — one of the most common forms in supplements because of its high magnesium content per weight — was less bioavailable than magnesium citrate, chloride, lactate, or aspartate. A liquid or chelated form absorbs more readily, which is why the supplement aisle's cheapest options are often the least effective ones. Terrafolk's Liquid Magnesium uses a highly bioavailable form — easier to absorb, easier to take, and more likely to actually move the needle.
One thing worth knowing before reaching for vitamin D instead: vitamin D cannot be metabolized without sufficient magnesium levels, meaning it remains stored and inactive for as many as half of those taking it. The two nutrients are deeply interdependent — each making the other work properly. If low energy or poor sleep is the concern, addressing magnesium first often makes more sense than adding more vitamin D to the stack. Terrafolk's Vegan Vitamin D3 is plant-sourced and well-formulated — but it works better when magnesium levels are adequate.
Rounding out the picture: Trace Minerals and Nano Zinc support the same systems — hydration, cellular function, immune response — and deficiencies in all three tend to travel together in people eating a processed-food-heavy diet.
Make magnesium the next step on your wellness journey.