Myprotein
Magnesium Muscle Bath Flakes
£10.95
£1.10 / 100 g
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Myvitamins
Magnesium Bisglycinate 1000mg Tablets
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C
Mediocre
SupplementScore · scale A+ (best) to E
- With a demonstrated deficiency or an increased risk of one (one-sided diet, certain bowel diseases or medications)
- For constipation, where higher dosages and forms such as oxide or hydroxide are actually appropriate
- Healthy athletes with a varied diet: no convincing evidence for better performance or recovery
Reviewed by Android Health Clinic
Read the full review ↓
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The winner
Magnesium Sleep Bath Flakes
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|---|---|---|---|---|
| Price | £17.99 | £25.00 | £12.50 | £10.95 |
| SupplementScore | C | — | — | — |
| Per 100 g | — | €14,88 / 100 g | €10,00 / 100 ml | €1,10 / 100 g |
| Shop review | 5,0 | — | — | — |
| Shop | Myvitamins | Hunter & Gather | KIKI Health | BetterYou |
| This product | View product | View product | View product |
Product information
- Shop
- Myvitamins
- Form
- Tablets
- Contents
- 90 servings
- Dosage (label)
- 300 mg of elemental magnesium per day
- Magnesium form
- Oxide
SupplementScore®
An independent assessment of ingredients, dosage and quality, based on public sources.
C
Mediocre
Magnesium Bisglycinate 1000mg Tablets · Myvitamins
On a scale from A+ (best) to E
How is this score determined?
Reviewed by Android Health ClinicAt 300 mg of elemental magnesium the dosage looks fine on paper, but the product is based on magnesium oxide: for general supplementation clearly a less suitable choice due to its lower bioavailability. On top of that, the colourings and sweeteners add nothing. Good to know: magnesium oxide can actually be a logical choice if the product is specifically intended for constipation.
What is this useful for?
Magnesium is not a standard sports supplement: for healthy athletes with a varied diet there is no convincing evidence that extra magnesium improves performance or recovery. Supplementation is mainly useful with a demonstrated deficiency or an increased risk of one, for example due to a one-sided diet, certain bowel diseases or some medications (such as loop diuretics and proton pump inhibitors). For constipation, magnesium actually is effective; higher dosages and forms such as oxide or hydroxide are then appropriate. (Review: Android Health Clinic.)
Sources
Product page/label · magnesium scorecard v1.0 · medically reviewed by Android Health Clinic
Model version 1.0 · 4 July 2026 · version history
Partner: we earn a commission when you buy through our link. That doesn't change the score: partner products also get a C or D when the data calls for it.
How does the SupplementScore work?Ratings
5,0
Shop rating · 3 · via Myprotein
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