Ghost Fitness/Magnesium/What to avoid while taking magnesium glycinate?
What to avoid while taking magnesium glycinate?
The short answer
A day on the clock: at the fasted morning slot, avoid magnesium near levothyroxine, bisphosphonates or a chelating antibiotic; through the day, avoid stacking gram-scale calcium or over 100mg of zinc on the same sitting and avoid the drains, heavy alcohol above all; at night, avoid a magnesium antacid or laxative that double-counts and a citrate or oxide at bedtime. Nothing else needs avoiding.
- Morning, fastedlevothyroxine, bisphosphonates, chelating antibiotics: magnesium hours away, at the evening meal
- Through the daygram-scale calcium or zinc over 100mg on the same sitting; heavy alcohol as the drain
- Evening, the capsule's placewith the meal: nothing to avoid at the plate
- Nighta magnesium antacid or laxative that double-counts; citrate or oxide at bedtime
Our brand: the worked example on this page
Futuro Labs Magnesium Glycinate
- 22p a day
- 180 capsules, 2 capsules daily
- Lab tested
- Made in the UK
The capsule at its place on the clock: Futuro Labs Magnesium Glycinate on Amazon UK, bisglycinate, 2 capsules with the evening meal, 300mg elemental at 80% NRV, £19.99 for 90 days at 22p. Full label breakdown. The avoid triple is on the avoid page; the binder list ranked on the react-badly page.
A day on the clock, the morning and the daytime, and where the avoids sit
What to avoid while taking magnesium glycinate is easiest to hold as a day on the clock, because each thing to avoid sits at a time of day and the capsule itself sits at one point on the same clock. The fasted morning slot: this is where the only strict avoid lives, since levothyroxine, taken fasted before breakfast by hundreds of thousands of people, the bisphosphonates for osteoporosis, taken fasted with water and a wait, and the chelating antibiotics, tetracyclines and fluoroquinolones sometimes directed fasted, all lose absorption to magnesium taken near them, so magnesium is kept hours away from that slot, about four hours for levothyroxine, and the honest consequence is that the capsule does not live in the morning at all for a reader on any of them, the empty-stomach page's collision, and lives at the evening meal instead, hours from the medicine on either side. Through the day: the avoids here are about the same sitting and about the drains, since gram-scale calcium, a high-dose calcium prescription rather than a yoghurt, competes with magnesium for transport and is taken at a different meal, zinc over about 100mg reduces magnesium absorption in the balance study and is never a sensible dose anyway, adequacy zinc of 10 to 15mg sharing a plate with magnesium without an issue, and heavy alcohol through the day or evening is the drain no supplement outruns, the commonest cause of clinically low magnesium in fed adults, so avoided not for a reaction with the capsule but because it empties the pool the capsule is filling. Ordinary food is not avoided at any hour, a meal helping absorption rather than hurting it, phytate-heavy unleavened grains and dry pulses trimming it modestly at the same sitting and mattering only on a marginal diet.
The evening and the night, the capsule's place and the two things beside it, and the clock filed
The evening meal is the capsule's place on the clock and nothing at the plate is avoided: two bisglycinate capsules with dinner, the section's anchor for adherence and tolerance, sit beside creatine, protein, vitamin D, omega-3, adequacy zinc and a glass of anything, the stacking pages' standing finding that the ordinary cupboard and magnesium share a meal without a conflict, and coffee, since readers ask, binds nothing. The night holds two avoids, both about magnesium arriving from somewhere else. The antacid or laxative: a magnesium hydroxide indigestion remedy at bedtime, milk of magnesia, Epsom salts by mouth or a multivitamin's magnesium line all add elemental magnesium to the day's total without announcing it, the not-with page's fourth list, and a reader on a 300mg glycinate plus a nightly magnesium antacid has passed the 400mg guidance level and met the laxative effect the hydroxide was chosen for, so hidden magnesium is counted or swapped for a non-magnesium antacid. The laxative salt: a citrate or oxide taken at bedtime delivers its osmotic effect in the small hours, the night side-effects page's bathroom trip, so a nightly habit is bisglycinate and a citrate belongs to a daytime meal if it belongs anywhere. The clock filed: the fasted morning slot for medicines, with magnesium hours away; the daytime for gram-scale calcium at another sitting, high-dose zinc never, and alcohol as the drain; the evening meal as the capsule's place with nothing to avoid; and the night for hidden antacid magnesium and laxative salts, with the worked example being the capsule at its place, bisglycinate at 300mg elemental with the evening meal, £19.99 for 90 days at 22p, and nothing else on a normal day needing avoiding.
| The time | What to avoid | The reason |
|---|---|---|
| Fasted morning | Magnesium near levothyroxine, bisphosphonates, chelating antibiotics | They lose absorption; the capsule lives at the evening meal |
| Daytime sittings | Gram-scale calcium or zinc over 100mg on the same plate | Transport competition at high doses; adequacy doses are fine |
| Through the day | Heavy alcohol | The drain no supplement outruns |
| The evening meal | Nothing | The capsule's place, beside the ordinary cupboard |
| Night | A magnesium antacid, laxative or multivitamin line that double-counts | Past the 400mg level without noticing |
| Night | Citrate or oxide at bedtime | The osmotic effect in the small hours |
The verdict, four times on a clock and a capsule at the fifth
What to avoid while taking magnesium glycinate: laid on a day's clock, the fasted morning slot where levothyroxine, bisphosphonates and chelating antibiotics are kept hours from magnesium, the daytime where gram-scale calcium goes to another sitting, high-dose zinc goes nowhere and heavy alcohol is the drain to avoid, the evening meal where the capsule lives beside the ordinary cupboard with nothing to avoid, and the night where a magnesium antacid, laxative or multivitamin line is counted rather than added and a citrate or oxide at bedtime is swapped for bisglycinate. The capsule at its place: Futuro Labs Magnesium Glycinate, bisglycinate, two capsules with the evening meal, 300mg elemental at 80% NRV, £19.99 for 90 days at 22p a day.
What to check on the label
- Keep the fasted morning slot for the medicine: magnesium hours away.
- Move gram-scale calcium to another sitting: a yoghurt is fine.
- Treat heavy alcohol as the drain: avoided for the pool's sake.
- Take the capsule with dinner beside everything else: nothing to avoid at the plate.
- Count night-time magnesium from antacids and laxatives: and keep laxative salts off the bedtime.
Our brand
The worked example: Futuro Labs Magnesium Glycinate
Futuro Labs Magnesium Glycinate is the worked example for magnesium reviews because its label states every number a review needs: 1500mg magnesium bisglycinate at 20%, 300mg elemental, 80% NRV, 2 capsules a day, 180 capsules for £19.99, 22p a day, UK made, vegan HPMC shell, batch tested for lead, mercury, arsenic and cadmium, and only the register's own magnesium claims printed.
- 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 take magnesium glycinate in the morning with my thyroid tablet?
No: levothyroxine is taken fasted and its absorption is reduced by magnesium near it, the usual gap being about four hours, so the capsule lives at the evening meal for a reader on it, hours from the medicine on either side.
Do I need to avoid calcium while taking magnesium?
Only gram-scale calcium, a high-dose prescription, which competes for transport and is taken at a different sitting; a yoghurt, a cheese or a modest calcium tablet beside the capsule shows no meaningful effect.
Should I avoid alcohol while taking magnesium glycinate?
Heavy alcohol, yes, not for a reaction with the capsule but because it is the commonest cause of clinically low magnesium in fed adults and empties the pool the capsule is filling, no supplement outrunning the drain.
Can I take an antacid at night with magnesium glycinate?
Count it: a magnesium hydroxide antacid or laxative at bedtime adds elemental magnesium to the day's total without announcing it and can push a 300mg glycinate past the 400mg level, so hidden magnesium is counted or swapped for a non-magnesium antacid.
Is there anything I should avoid eating with magnesium glycinate?
No: a meal helps absorption rather than hurting it, coffee binds nothing, and phytate-heavy unleavened grains and dry pulses trim absorption modestly at the same sitting in a way that matters only on a marginal diet.
Sources
- The magnesium and medicines literature: magnesium supplements reduce absorption of tetracycline and quinolone antibiotics, bisphosphonates and levothyroxine when taken together and are spaced from them, while proton-pump inhibitors and some diuretics lower magnesium status, a reason for medical advice in either direction. PubMed record
- The calcium and magnesium interaction literature: calcium and magnesium share intestinal transport, and very high calcium doses can modestly reduce magnesium absorption, while ordinary supplemental amounts taken together show no meaningful effect. PubMed record
- The zinc and magnesium interaction literature: very high supplemental zinc, in the region of 140mg a day, reduced magnesium absorption and balance in a metabolic study, while ordinary supplemental doses of 10 to 25mg show no meaningful interaction, and high zinc also depletes copper. PubMed record
- The renal magnesium handling literature: the kidney is the main regulated exit for magnesium, reabsorbing most filtered magnesium in the loop of Henle and distal tubule and excreting the surplus, with loss increased by alcohol, loop and thiazide diuretics, high glucose and certain drugs. PubMed record