Magnesium Plus 120 Tablets
£17.99 for 120 tablets at Healthspan. It carries more than one active ingredient, so it is not ranked against single-ingredient products. Each price below counts one ingredient only.
At one 100 mg dose a day, this pack lasts 1.2 years. A month is 30 days, so twelve of them is not quite a year.
How we worked it out
Magnesium
- Servings: 120 ÷ 1 per serving = 120
- In the pack: 120 × 375 mg = 45 g
- £17.99 ÷ 45 g × 100 mg = 4p per 100 mg magnesium
- A week 4p × 7 = 28p · a month × 30 = £1.20 · a year × 365 = £14.59
- Amount per serving: stated on the label.
Niacin (vitamin B3)
- Servings: 120 ÷ 1 per serving = 120
- In the pack: 120 × 4 mg = 480 mg
- £17.99 ÷ 480 mg × 500 mg = £18.74 per 500 mg
- A week £18.74 × 7 = £131.18 · a month × 30 = £562.19 · a year × 365 = £6839.95
- Amount per serving: stated on the label.
Riboflavin (vitamin B2)
- Servings: 120 ÷ 1 per serving = 120
- In the pack: 120 × 0.35 mg = 42 mg
- £17.99 ÷ 42 mg × 100 mg = £42.83 per 100 mg
- A week £42.83 × 7 = £299.83 · a month × 30 = £1285.00 · a year × 365 = £15634.17
- Amount per serving: stated on the label.
Thiamine (vitamin B1)
- Servings: 120 ÷ 1 per serving = 120
- In the pack: 120 × 0.28 mg = 33 mg
- £17.99 ÷ 33 mg × 100 mg = £54.52 per 100 mg
- A week £54.52 × 7 = £381.61 · a month × 30 = £1635.45 · a year × 365 = £19898.03
- Amount per serving: stated on the label.
Vitamin B6
- Servings: 120 ÷ 1 per serving = 120
- In the pack: 120 × 0.7 mg = 84 mg
- £17.99 ÷ 84 mg × 50 mg = £10.71 per 50 mg
- A week £10.71 × 7 = £74.96 · a month × 30 = £321.25 · a year × 365 = £3908.54
- Amount per serving: stated on the label.
Vitamin C
- Servings: 120 ÷ 1 per serving = 120
- In the pack: 120 × 40 mg = 4.8 g
- £17.99 ÷ 4.8 g × 1 g = £3.75 per 1 g
- A week £3.75 × 7 = £26.24 · a month × 30 = £112.44 · a year × 365 = £1367.99
- 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 oxide
All 9, ranked →
Ranked purely by price per 100 mg magnesium. 91 combination products also contain magnesium.
How it compares: niacinamide
All 5, ranked →
Ranked purely by price per 500 mg. 164 combination products also contain niacin (vitamin B3).
How it compares: riboflavin (vitamin B2)
Compare every product in this form →
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 →
Ranked purely by price per 100 mg. 208 combination products also contain thiamine (vitamin B1).
How it compares: vitamin B6 pyridoxine HCl
All 6, ranked →
Ranked purely by price per 50 mg. 280 combination products also contain vitamin B6.
How it compares: vitamin C
All 113, ranked →
Ranked purely by price per 1 g. 950 combination products also contain vitamin C.
On the label
- Magnesium · Oxide
- 375 mg per serving (stated on the label)
- Niacin (vitamin B3) · Niacinamide
- 4 mg per serving (stated on the label)
- Pack
- 120 tablets · 120 servings · 1 tablet(s) a serving
- Cost per serving
- 15p (120 servings in the pack)
More label details
- Riboflavin (vitamin B2) · Riboflavin
- 0.35 mg per serving (stated on the label)
- Thiamine (vitamin B1) · Thiamine
- 0.28 mg per serving (stated on the label)
- Vitamin B6 · Pyridoxine HCl
- 0.7 mg per serving (stated on the label)
- Vitamin C · Standard (ascorbic acid and ascorbates)
- 40 mg per serving (stated on the label)
- Sold by
- Healthspan
- What the listing says
- “120 Tablets” · “Swallow 1 tablet daily with water” · “Magnesium ; 375 mg ; 100% NRV” · “Magnesium Oxide”
Ingredients
Magnesium Oxide, Bulking Agent: Microcrystalline Cellulose, Ascorbic Acid, Glazing Agents (Rice Starch, Hydroxypropyl Methyl Cellulose, Medium Chain Triglycerides, Iron Oxides), Anti-Caking Agents (Magnesium Salts of Fatty Acids, Silicon Dioxide), Nicotinamide, Calcium Pantothenate, Pyridoxine Hydrochloride, Riboflavin, Thiamin Hydrochloride, Pteroylmonoglutamic Acid, Biotin, Methylcobalamin.
From the Healthspan listing. Check the pack itself if you have an allergy: labels mark allergens in bold.
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One 100 mg dose is our comparison unit, not a recommendation.
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Filled in from the label’s serving: 1 tablet.
What you paid
Optional. At Healthspan today: £17.99.
Bought it? We email you once, on , the day to reorder by, so it does not run out. No stack needed.
“Order by” allows 4 working days’ delivery from Healthspan and your spare days.
Price history
No price change since 17 September 2026. Checked on 3 days, most recently 22 October 2026.
- Price at every check
- £17.99Healthspan
- First recorded
- £17.9917 Sept
- Checked on
- 3 dayssince 17 Sept
- First checked at Healthspan: £17.99
Questions about this product
How much does Healthspan Elite Magnesium Plus 120 Tablets cost per 100 mg magnesium?
4p per 100 mg magnesium, from £17.99 for 120 tablets at Healthspan, checked on 22 October 2026.
How long does one pack last?
1.2 years at one 100 mg dose. The pack holds 45 g in total.
How much does Healthspan Elite Magnesium Plus 120 Tablets cost per 500 mg?
£18.74 per 500 mg, from £17.99 for 120 tablets at Healthspan, checked on 22 October 2026.
How long does one pack last?
under a day at one 500 mg dose. The pack holds 480 mg in total.
How much does Healthspan Elite Magnesium Plus 120 Tablets cost per 100 mg?
£42.83 per 100 mg, from £17.99 for 120 tablets at Healthspan, checked on 22 October 2026.
How long does one pack last?
under a day at one 100 mg dose. The pack holds 42 mg in total.
How much does Healthspan Elite Magnesium Plus 120 Tablets cost per 100 mg?
£54.52 per 100 mg, from £17.99 for 120 tablets at Healthspan, checked on 22 October 2026.
How long does one pack last?
under a day at one 100 mg dose. The pack holds 33 mg in total.
How much does Healthspan Elite Magnesium Plus 120 Tablets cost per 50 mg?
£10.71 per 50 mg, from £17.99 for 120 tablets at Healthspan, checked on 22 October 2026.
How long does one pack last?
2 days at one 50 mg dose. The pack holds 84 mg in total.
How much does Healthspan Elite Magnesium Plus 120 Tablets cost per 1 g?
£3.75 per 1 g, from £17.99 for 120 tablets at Healthspan, checked on 22 October 2026.
How long does one pack last?
5 days at one 1 g dose. The pack holds 4.8 g in total.
About Healthspan Elite
Founded 2014 · St Peter Port, Guernsey · Part of Healthspan (Orkla Health)
Healthspan Elite is the sports nutrition range of Healthspan, the Guernsey supplements company owned by Orkla Health. Launched in 2014 for professional and competing athletes, it covers protein powders, creatine, pre-workout and electrolyte products, vitamins and supplements.
All 11 Healthspan Elite products, priced per doseVisit Healthspan Elite (opens in a new tab)
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