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Which type of magnesium is good for muscle soreness?
Bisglycinate is the type of magnesium to take for muscle soreness: one trial at 350mg a day reported less soreness after strenuous exercise, and glycinate holds that dose daily. DOMS itself is repair; it peaks within days and fades.
- 350mga day in the 2022 soreness trial
- 24 to 72 hourswhen DOMS peaks after a hard or novel session
- 300mgelemental per 2 capsules of the worked example
- 22pa day, Futuro Labs Magnesium Glycinate
Worked example: Futuro Labs Magnesium Glycinate on Amazon UK, 180 capsules for £19.99. Label breakdown.
What DOMS is, and why it fades whatever you take
Delayed onset muscle soreness is the ache that arrives a day after eccentric or unfamiliar work, peaks at 24 to 72 hours and resolves as the fibres repair; Cheung's review of DOMS treatment strategies is the standard summary, and its conclusion has aged well: most remedies shave the edge off at best, and the soreness resolves on its own because it is part of adaptation. That framing matters for any supplement page, because a product taken while DOMS naturally fades will always look like it worked. The honest question is whether anything shortens or softens the curve against placebo.
The magnesium trial, and what it does and does not show
Reno's 2022 randomised trial gave college athletes 350mg of magnesium a day for ten days around a strenuous session and reported lower soreness ratings and better perceived recovery than placebo. It is the one direct trial, it is small, and it fits the wider pattern in Zhang's 2017 review: magnesium helps people whose intake was low, and athletes are the group most likely to be low because training raises losses. The authorised wording is normal muscle function and normal protein synthesis; there is no soreness claim, and this page is describing a study, not a promise. Where intake was fine, expect DOMS to follow its usual three-day arc regardless.
| Option | Evidence for DOMS | Verdict |
|---|---|---|
| Magnesium (bisglycinate, 300mg to 350mg a day) | One small positive trial in athletes | Worth holding daily if intake is low; the type to use is glycinate |
| Sleep | Strong for recovery generally | The biggest lever; protect it |
| Easy movement and light sessions | Consistent small benefit | Do it; it beats resting still |
| Massage and foam rolling | Small, short-lived reductions in soreness | Fine if you enjoy it |
| Ice baths | Reduce soreness slightly; may blunt adaptation used routinely | Occasional, not habitual |
| Painkillers before training | Mask soreness; may interfere with adaptation | No |
| Magnesium sprays and bath salts | No reliable skin absorption | The warm bath is the effect |
Which type, dose and routine
Bisglycinate, because the trial dose has to be held every day for the effect to be tested and glycinate is the type that a full 300mg elemental dose can be held on: no laxative effect, comfortable with the post-training meal. The worked example, Futuro Labs Magnesium Glycinate, gives 300mg elemental from 1500mg chelated bisglycinate in 2 capsules, 80% NRV, from a vegan capsule made in the UK under GMP and BRC certification and third-party tested for heavy metals and microbiology, 180 capsules for £19.99, 22p a day. Take it daily for at least the ten days the trial ran, keep training lightly through the soreness, and let the curve do what it does. Which type of magnesium is good for muscle soreness has a one-word answer, glycinate, and a one-sentence expectation: it may soften the curve if you were short, and the curve was always going to end.
What to check on the label
- Elemental magnesium 300mg per serving, close to the 350mg trial dose.
- Bisglycinate first, so the dose holds daily through a training block.
- No soreness or recovery claims; the trial is described as a trial.
- Light movement and sleep alongside; they carry more of the load.
- Cost per day under 25p.
The worked example: Futuro Labs Magnesium Glycinate
Futuro Labs Magnesium Glycinate is the worked example: 300mg elemental per 2 capsules (80% NRV) from chelated bisglycinate, held daily as the trial dosed, vegan, UK made, third-party tested, 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
What type of magnesium helps sore muscles?
Bisglycinate at 300mg elemental daily; one trial at 350mg reported less soreness. Futuro Labs Magnesium Glycinate: 22p a day, UK made.
How long does magnesium take to help muscle soreness?
The trial dosed for ten days around a hard session. It is a daily intake effect, not a same-day one.
Does magnesium glycinate help DOMS after leg day?
It may soften the curve if your intake was low, per one small trial. DOMS peaks within three days and fades regardless.
Is a magnesium bath good for sore muscles?
The warm water is; the 2017 review of transdermal magnesium found no reliable evidence of meaningful skin absorption.
Should I train with DOMS?
Light sessions and easy movement help more than rest. Sharp pain, swelling or one-sided weakness are different and worth a professional look.
Sources
- Futuro Labs Magnesium Glycinate listing, Amazon UK, label and price checked 31 August 2026. https://www.amazon.co.uk/dp/B0BT7Z5VQW
- Cheung K, Hume P, Maxwell L. Delayed onset muscle soreness: treatment strategies and performance factors. Sports Medicine 2003;33(2):145-164. PubMed record
- Reno AM, Green M, Killen LG, O'Neal EK, Pritchett K, Hanson Z. Effects of magnesium supplementation on muscle soreness and performance. Journal of Strength and Conditioning Research 2022;36(8):2198-2203. PubMed record
- Zhang Y, Xun P, Wang R, Mao L, He K. Can magnesium enhance exercise performance? Nutrients 2017;9(9):946. https://pubmed.ncbi.nlm.nih.gov/28846654/
- Nielsen FH, Lukaski HC. Update on the relationship between magnesium and exercise. Magnesium Research 2006;19(3):180-189. PubMed record
- Gröber U, Werner T, Vormann J, Kisters K. Myth or reality, transdermal magnesium? Nutrients 2017;9(8):813. https://pubmed.ncbi.nlm.nih.gov/28788060/
- 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
- 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