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Does magnesium affect creatine absorption?
No: magnesium does not affect creatine absorption. Creatine crosses the gut on its own sodium-dependent transporter while magnesium uses separate mineral routes, so nothing competes. The same meal, shake or evening works for both; no spacing is needed.
- 2 routescreatine's transporter and magnesium's mineral channels: separate doors
- 0competition, binding or spacing requirements between them
- ~99%of oral creatine absorbed: nothing left for a mineral to block
- 1 mealhappily carries both, daily
The magnesium that shares the meal: Futuro Labs Magnesium Glycinate on Amazon UK, 300mg elemental per 2 capsules, £19.99 for 180. Label breakdown. The stacking doses are on magnesium and creatine together; the chelate product on magnesium creatine chelate.
The mechanism: two different doors through the same wall
Absorption interactions happen when two compounds want the same door, and these two do not. Creatine crosses the intestinal wall primarily via its own dedicated sodium-and-chloride-dependent transporter, the same family that later carries it into muscle, a protein that recognises creatine's specific structure and has no affinity for mineral ions; oral creatine monohydrate is absorbed nearly completely, around 99% by the standard pharmacokinetic work Kreider's position stand summarises, leaving essentially nothing for an interfering substance to block even in principle. Magnesium arrives through entirely different architecture, the TRPM-family channels and passive paracellular seepage that handle divalent minerals. Different recognition, different proteins, different limits: the two absorptions proceed in the same gut the way two conversations proceed in the same room, simultaneously and without reference to each other.
Where the worry comes from, and each source retired
The question has three honest parents, each dissolvable. First, mineral-binding folklore: magnesium genuinely does bind certain drugs in the gut, tetracyclines and bisphosphonates most famously, and people reasonably generalise the caution; but that chemistry is chelation of specific molecular structures, and creatine, a small zwitterionic amino acid derivative, is not one of them, forms no insoluble magnesium complex at gut pH, and appears on no interaction list. Second, the magnesium creatine chelate product: a formula deliberately bonding the two invites the inference that they must otherwise conflict, when the bonding is a patent story, not a rescue; the site's review of that product covers why plain monohydrate plus plain glycinate wins. Third, general stacking anxiety, the more-supplements-more-rules instinct, which this pairing simply does not reward: no spacing, no sequencing, no fasted windows, nothing to optimise beyond taking both daily.
| Claim heard | Reality | Verdict |
|---|---|---|
| Magnesium binds creatine in the stomach | No such complex forms; creatine is on no chelation list | False |
| They compete for the same transporter | Creatine's transporter ignores mineral ions entirely | False |
| Creatine absorption needs protecting | ~99% absorbed as plain monohydrate: nothing to protect | Needless |
| The chelate product proves a conflict exists | It proves a patent exists: bonding is marketing, not rescue | Backwards |
| They must be taken hours apart | Same meal, same shake, same evening: all fine | False |
| Anything at all to schedule? | Creatine daily anywhere, magnesium at dinner: preference only | The whole protocol |
The protocol this non-interaction leaves you, and the two products
Does magnesium affect creatine absorption: no, in either direction, at any dose or hour, which returns the pairing to the pleasantly boring protocol the evidence supports: creatine monohydrate at 3g to 5g daily in whatever liquid is passing, consistency the only rule, carrying the shelf's one authorised performance claim at 3g; and Futuro Labs Magnesium Glycinate, 2 capsules with the evening meal, 300mg elemental at 80% NRV from bisglycinate at 20%, doing the intake-insurance job, vegan, UK made under GMP and BRC, panels shown, £19.99 for 180 capsules, 22p a day. Same dinner, same shake if you like, zero traffic between them. The rare pleasure of this corner of the supplement world is that the mechanism, the trials and the practical answer all say the identical thing: take both, think about neither.
What to check on the label
- No effect, either direction: separate transporters, zero competition.
- Creatine is ~99% absorbed anyway: nothing exists to block.
- The binding folklore belongs to specific drugs: creatine is not on the list.
- The chelate product implies a problem it does not prove: patent, not rescue.
- Protocol: both daily, same meal fine, nothing to schedule.
The worked example: Futuro Labs Magnesium Glycinate
Futuro Labs Magnesium Glycinate shares the meal with the day's creatine at zero cost to either: 300mg elemental per 2 capsules (80% NRV) at dinner beside 3g to 5g monohydrate anywhere in the day, 22p from a £19.99 bottle of 180. Vegan, UK made, panels shown.
- 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
Can I put magnesium and creatine in the same shake?
Yes: nothing binds, nothing competes, and the shake changes neither ingredient's fate. Capsules alongside or opened in, as you prefer.
Should creatine and magnesium be taken at different times?
No: spacing rules belong to specific medicines, not to this pair. Creatine any hour, magnesium at dinner, overlap welcome.
Does magnesium glycinate reduce how much creatine reaches muscle?
No: uptake into muscle runs on creatine's own transporter and saturates with daily dosing regardless of what dinner contained.
Is magnesium creatine chelate better absorbed than taking both separately?
No good evidence says so: plain monohydrate is already ~99% absorbed, leaving the chelate nothing to improve at a premium price.
Does creatine affect magnesium absorption in reverse?
No: magnesium's channels ignore creatine just as thoroughly. The non-interaction runs both ways.
Sources
- Futuro Labs Magnesium Glycinate listing, Amazon UK, label and price checked 31 August 2026. https://www.amazon.co.uk/dp/B0BT7Z5VQW
- Kreider RB, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. Journal of the International Society of Sports Nutrition 2017;14:18. PubMed record
- EFSA Panel on Dietetic Products, Nutrition and Allergies. Scientific Opinion on the substantiation of health claims related to creatine and increase in physical performance during short-term, high intensity, repeated exercise bouts. EFSA Journal 2011;9(7):2303. https://efsa.onlinelibrary.wiley.com/doi/10.2903/j.efsa.2011.2303
- Walker AF, Marakis G, Christie S, Byng M. Mg citrate found more bioavailable than other Mg preparations in a randomised, double-blind study. Magnesium Research 2003;16(3):183-191. PubMed record
- Setaro L, et al. Magnesium status and the physical performance of volleyball players: effects of magnesium supplementation. Journal of Sports Sciences 2014;32(5):438-445. PubMed record
- 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