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Home › Minerals › Magnesium

GP NutritionMineralsVegan

Magnesium, 56 capsules

£13.40 for 56 capsules at W-Wellness. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.

What it really costs, per 100 mg magnesium26pOne 100 mg dose is our comparison unit for magnesium. It is not a recommendation.
A day26p
A week£1.79
A month£7.66
A year£93.16

At one 100 mg dose a day, this pack lasts 53 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Magnesium

  • Servings: 56 ÷ 2 per serving = 28
  • In the pack: 28 × 187.5 mg = 5.25 g
  • £13.40 ÷ 5.25 g × 100 mg = 25.5p per 100 mg magnesium
  • A week 25.5p × 7 = £1.79 · a month × 30 = £7.66 · a year × 365 = £93.16
  • Amount per serving: stated on the label.

Riboflavin (vitamin B2)

  • Servings: 56 ÷ 2 per serving = 28
  • In the pack: 28 × 0.7 mg = 19.6 mg
  • £13.40 ÷ 19.6 mg × 100 mg = £68.37 per 100 mg
  • A week £68.37 × 7 = £478.57 · a month × 30 = £2051.02 · a year × 365 = £24954.08
  • Amount per serving: stated on the label.

Thiamine (vitamin B1)

  • Servings: 56 ÷ 2 per serving = 28
  • In the pack: 28 × 0.55 mg = 15.4 mg
  • £13.40 ÷ 15.4 mg × 100 mg = £87.01 per 100 mg
  • A week £87.01 × 7 = £609.09 · a month × 30 = £2610.39 · a year × 365 = £31759.74
  • Amount per serving: stated on the label.

Vitamin B6

  • Servings: 56 ÷ 2 per serving = 28
  • In the pack: 28 × 1.4 mg = 39.2 mg
  • £13.40 ÷ 39.2 mg × 50 mg = £17.09 per 50 mg
  • A week £17.09 × 7 = £119.64 · a month × 30 = £512.76 · a year × 365 = £6238.52
  • Amount per serving: stated on the label.

The standard dose is a comparison unit, not a recommendation. Always confirm the price on the retailer's site. How we compare everything.

How it compares: magnesium bisglycinate

All 66, ranked →
Magnesium Bisglycinate 1500mgCheapest per 100 mg magnesiumSimply Supplements · 1.5 g a serving · 43p a month · a pack lasts 2.5 years1p£12.99View at Simply Supplements (opens in a new tab)
One NutritionPure Magnesium BisglycinateVitamin Planet · 700 mg a serving · 96p a month · a pack lasts 1.7 years3p£20.24View at Vitamin Planet (opens in a new tab)
ZipVitMagnesium Glycinate 2000mgZipVit · 400 mg a serving · £1.00 a month · a pack lasts 2 years3p£23.99View at ZipVit (opens in a new tab)
GP NutritionThis productW-Wellness · 187.5 mg a serving · £7.66 a month · a pack lasts 53 days26pshown above

Ranked purely by price per 100 mg magnesium. Labels here do not all state the same thing: this one gives stated on the label, the cheapest gives estimated from the compound weight using our conversion factor. Check both before choosing. 86 combination products also contain magnesium.

How it compares: riboflavin (vitamin B2)

Compare every product in this form →
RiboflavinCheapest per 100 mgHealf · 400 mg a serving · £2.31 a month · a pack lasts 8 months8p£18.49View at Healf (opens in a new tab)
Vitamin B2 100mgHealf · 100 mg a serving · £2.76 a month · a pack lasts 3 months9p£9.21View at Healf (opens in a new tab)
Vitamin B2 (Riboflavin) 50mgLamberts Healthcare (Nature's Best) · 50 mg a serving · £3.90 a month · a pack lasts 50 days13p£6.50View at Lamberts Healthcare (opens in a new tab)
GP NutritionThis productW-Wellness · 0.7 mg a serving · £2051.02 a month · a pack lasts under a day£68.37shown above

Ranked purely by price per 100 mg. 192 combination products also contain riboflavin (vitamin B2).

How it compares: thiamine (vitamin B1)

Compare every product in this form →
Vitamin B1 (Thiamin) 100mgCheapest per 100 mgLamberts Healthcare (Nature's Best) · 100 mg a serving · £2.50 a month · a pack lasts 3 months8p£7.50View at Lamberts Healthcare (opens in a new tab)
Natures AidVitamin B1 100mg 90 TabletsLloyds Pharmacy · 100 mg a serving · £3.83 a month · a pack lasts 3 months13p£11.49View at Lloyds Pharmacy (opens in a new tab)
GP NutritionThis productW-Wellness · 0.55 mg a serving · £2610.39 a month · a pack lasts under a day£87.01shown above

Ranked purely by price per 100 mg. 208 combination products also contain thiamine (vitamin B1).

How it compares: vitamin B6 P-5-P

All 4, ranked →
P5P 50Cheapest per 50 mgHealf · 50 mg a serving · £8.55 a month · a pack lasts 6 months28p£51.30View at Healf (opens in a new tab)
P5P 50Healf · 50 mg a serving · £9.00 a month · a pack lasts 2 months30p£18.00View at Healf (opens in a new tab)
Pyridoxal 5'-PhosphateHealf · 33.8 mg a serving · £11.26 a month · a pack lasts 4 months38p£45.69View at Healf (opens in a new tab)
GP NutritionThis productW-Wellness · 1.4 mg a serving · £512.76 a month · a pack lasts under a day£17.09shown above

Ranked purely by price per 50 mg. 158 combination products also contain vitamin B6.

On the label

Magnesium · Bisglycinate (glycinate)
187.5 mg per serving (stated on the label)
Riboflavin (vitamin B2) · Riboflavin
0.7 mg per serving (stated on the label)
Pack
56 capsules · 28 servings · 2 capsule(s) a serving
Cost per serving
48p (28 servings in the pack)
More label details
Thiamine (vitamin B1) · Thiamine
0.55 mg per serving (stated on the label)
Vitamin B6 · P-5-P (active form)
1.4 mg per serving (stated on the label)
Claimed on the listing
vegan
Sold by
W-Wellness
What the listing says
“56 capsules” · “CONTAINS 28 DAY SUPPLY” · “Per 2 caps” · “Magnesium (TRAACS Magnesium Bisglycinate Chelate Buffered) 187.5mg”
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One 100 mg dose is our comparison unit, not a recommendation.

Price history

No price change since 15 October 2026. Checked on 6 days, most recently 20 October 2026.

Price at every check
£13.40W-Wellness
First recorded
£13.4015 Oct
Checked on
6 dayssince 15 Oct
Pack price at each check.
  1. First checked at W-Wellness: £13.40

Questions about this product

How much does GP Nutrition Magnesium cost per 100 mg magnesium?

26p per 100 mg magnesium, from £13.40 for 56 capsules at W-Wellness, checked on 20 October 2026.

How long does one pack last?

53 days at one 100 mg dose. The pack holds 5.25 g in total.

How much does GP Nutrition Magnesium cost per 100 mg?

£68.37 per 100 mg, from £13.40 for 56 capsules at W-Wellness, checked on 20 October 2026.

How long does one pack last?

under a day at one 100 mg dose. The pack holds 19.6 mg in total.

How much does GP Nutrition Magnesium cost per 100 mg?

£87.01 per 100 mg, from £13.40 for 56 capsules at W-Wellness, checked on 20 October 2026.

How long does one pack last?

under a day at one 100 mg dose. The pack holds 15.4 mg in total.

How much does GP Nutrition Magnesium cost per 50 mg?

£17.09 per 50 mg, from £13.40 for 56 capsules at W-Wellness, checked on 20 October 2026.

How long does one pack last?

under a day at one 50 mg dose. The pack holds 39.2 mg in total.

About GP Nutrition

All 7 GP Nutrition products, priced per dose

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