Ghost FitnessGhost Fitness/Magnesium/ZMA tablets vs magnesium glycinate: which should lifters take?
ZMA tablets vs magnesium glycinate: which should lifters take?
Take magnesium glycinate capsules. ZMA tablets copy a formula that failed its independent trial, demand an empty stomach at bedtime, and carry 30mg zinc, above the UK guidance level. Two glycinate capsules with dinner give 300mg elemental for 22p.
- 3 tabletsZMA's nightly serving, on an empty stomach
- 2 capsulesglycinate's serving, with any meal
- 30mgZMA's zinc against the 25mg UK guidance level
- 22pa day for the glycinate routine
The capsule routine: Futuro Labs Magnesium Glycinate on Amazon UK, 180 capsules for £19.99. Label breakdown. The evidence head-to-head is on the ZMA vs magnesium glycinate page.
The two routines, night by night
The ZMA tablet routine: finish eating two hours before bed, because the label says empty stomach and away from calcium; swallow three tablets; repeat nightly at 30mg of zinc a time. The glycinate routine: eat dinner; take 2 capsules with it; done. The difference sounds trivial and is not, because supplements work through adherence, and a routine that argues with dinner loses nights every week. The empty-stomach rule exists for ZMA because calcium competes with its zinc; a magnesium-only capsule has no such conflict, which is why the ritual disappears with the blend.
What the tablet format adds to ZMA's problems
The formula's problems come first and are covered in the head-to-head: a null independent trial and a zinc dose above the 25mg guidance level for nightly use. The tablet format then adds the usual tablet questions: compression binders and coatings around the actives, and, in the UK copies particularly, the magnesium downgraded to oxide because oxide compresses well and pads the label number. A ZMA tablet whose ingredients list shows magnesium oxide has kept the famous name and dropped the one defensible ingredient. Glycinate physically resists the cheap-tablet treatment, which is why it arrives as capsules with the form printed.
| ZMA tablets | Magnesium glycinate capsules (worked example) | |
|---|---|---|
| Serving | 3 tablets, empty stomach, bedtime | 2 capsules, with any meal |
| What is inside | Zinc 30mg, magnesium often as aspartate or oxide, B6 | 1500mg bisglycinate at 20%; 300mg elemental, 80% NRV |
| Nightly zinc against the guidance level | Over it | None |
| Format issues | Binders, coatings, oxide compression | HPMC capsule, form printed |
| Fits a normal evening | Argues with dinner | Is dinner's neighbour |
| Typical UK cost per day | 30p to 50p | 22p |
The verdict, and the one-line routine to keep
Take the capsules. Futuro Labs Magnesium Glycinate gives 300mg elemental per 2 capsules at 80% NRV from bisglycinate at 20%, vegan HPMC capsules, made in the UK under GMP and BRC certification, third-party panels shown, £19.99 for 180 capsules, 22p a day, taken with the evening meal every day of the block. Lifters who want zinc add 10mg to 15mg separately with food on the days their plate ran short, staying under the guidance level. That routine survives real life, respects the UK ceilings, and rests on trials that exist; the three-tablet bedtime ritual does none of those things, whichever brand's ZMA tablets are running it.
What to check on the label
- Two capsules with dinner beats three tablets on an empty stomach: adherence is the active ingredient.
- ZMA tablet ingredient lists read: oxide behind the name is common in UK copies.
- Zinc at or under 25mg nightly: ZMA fails this by design.
- Elemental magnesium printed: 300mg at 80% NRV on the capsule side.
- 22p a day for the routine that passes.
The worked example: Futuro Labs Magnesium Glycinate
Futuro Labs Magnesium Glycinate is the capsule routine: 300mg elemental per 2 capsules (80% NRV) from bisglycinate 20%, with dinner, no ritual, vegan, UK made, panels shown, 22p a day from a £19.99 bottle of 180.
- Elemental magnesium per serving
- 300mg (80% NRV)
- Form
- magnesium bisglycinate 20%
- Serving
- 2 capsules a day
- Bottle
- 180 capsules, 90 days
- Price
- £19.99 (22p a day)
- Capsule
- vegetarian shell, vegan product
Questions people also ask
Are ZMA tablets better than magnesium glycinate?
No. The formula failed its independent trial, the zinc exceeds the UK nightly guidance level, and UK tablet copies often downgrade the magnesium to oxide.
Why do ZMA tablets say empty stomach?
Calcium competes with ZMA's zinc for absorption. A magnesium-only capsule has no such conflict and goes with food.
Can I take ZMA tablets with dinner anyway?
The zinc absorbs less well with calcium-containing food, which weakens the one thing the formula is dosing heavily. It also remains over the guidance level either way.
What time should I take magnesium glycinate instead?
With the evening meal, daily. The slot covers sleep and the habit attaches to a meal you never skip.
Which is cheaper, ZMA tablets or glycinate?
Glycinate at 22p a day against a typical 30p to 50p for ZMA tablets, and the cheaper one is the one with the printed full magnesium dose.
Sources
- Futuro Labs Magnesium Glycinate listing, Amazon UK, label and price checked 31 August 2026. https://www.amazon.co.uk/dp/B0BT7Z5VQW
- Wilborn CD, et al. Effects of zinc magnesium aspartate (ZMA) supplementation on training adaptations and markers of anabolism and catabolism. Journal of the International Society of Sports Nutrition 2004;1(2):12-20. PubMed record
- Expert Group on Vitamins and Minerals. Safe Upper Levels for Vitamins and Minerals. Food Standards Agency, 2003 (magnesium guidance level 400mg a day from supplements). https://cot.food.gov.uk/sites/default/files/vitmin2003.pdf
- Firoz M, Graber M. Bioavailability of US commercial magnesium preparations. Magnesium Research 2001;14(4):257-262. PubMed record
- Retained Regulation (EU) No 1169/2011, Annex XIII: nutrient reference value for magnesium 375mg. https://www.legislation.gov.uk/eur/2011/1169/annex/XIII
- EFSA Panel on Dietetic Products, Nutrition and Allergies. Scientific Opinion on the substantiation of health claims related to magnesium. EFSA Journal 2010;8(10):1807. https://efsa.onlinelibrary.wiley.com/doi/10.2903/j.efsa.2010.1807