MagnesiumGuide

Evidence-based magnesium guidance

Magnesium,
without the hype.

Which form actually helps with sleep, stress, and energy — and which ones aren’t worth your money.

Find your magnesium type See how to choose

Why magnesium matters

Your body uses magnesium everywhere. The trick is choosing a form that actually gets in.

Magnesium helps run more than 300 processes in your body. But many people don’t get the recommended amount from food — and the form you choose changes how much your body can actually absorb. This guide starts from your goal, then works back to the right one.

What people use it for

Four honest reasons people reach for magnesium

Better Sleep & Relaxation

Often used to wind down in the evening. Glycinate is the gentle, well-absorbed pick for this.

Reduced Stress & Anxiety

Magnesium is involved in the body’s stress response, and may help you feel a little more settled.

Muscle, Heart & Nerve Health

Essential for normal muscle function, nerve signalling, and a steady heartbeat.

Energy & Metabolic Support

Your cells need magnesium to produce energy, so correcting a shortfall can help with fatigue.

The different forms

Not all magnesium is the same

The form changes how well you absorb it and what it’s best suited for — from sleep and calm to digestion and brain support. Start from your goal.

Glycinate

Best for sleep & calm

Highly absorbable and gentle on the stomach. The usual pick for relaxation and evening use.

Citrate

Best for digestion

Well absorbed and affordable. Commonly used for occasional constipation.

L-Threonate

Studied for brain health

Researched for cognitive support, with promising but still-early evidence.

Malate

Daytime & energy

Well absorbed and tends to sit better as a daytime supplement.

Taurate

Heart support

Most discussed for cardiovascular and blood-pressure support.

Oxide

Cheap, poorly absorbed

Common and inexpensive, but little is absorbed. Better as a short-term laxative than a top-up.

Baths, Oils & Sprays

The topical family

Epsom salts, chloride flakes and "magnesium oil". Whether skin absorbs magnesium is debated, but a warm soak relaxes you either way. We explain which part does the work.

Read the full guide to every form →

Are you getting enough?

Why falling short is common

Many people don’t reach the recommended magnesium intake — surveys suggest close to half don’t get there from food alone. Food comes first: leafy greens, nuts, seeds, legumes, and whole grains are all good sources. But if your intake is low, a well-absorbed supplement can help fill the gap.

A true, symptomatic deficiency is less common in otherwise-healthy people, because the kidneys help regulate levels. If you’re regularly run-down, that’s a conversation with your doctor — not a supplement guess.

Not sure where to start?

Different forms suit different goals — the right magnesium for sleep isn’t the one for daytime energy. Start from what you’re trying to fix, and the guide will point you to the right form.

Find your magnesium type