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MetagenicsAmino acids & derivatives

MegaMag® Calm, Strawberry, 100 g

£29.99 for 100 g at Healf. 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 1 g£4.95One 1 g dose is our comparison unit for taurine. It is not a recommendation.
A day£4.95
A week£34.64
A month£148.45
A year£1806.15

At one 1 g dose a day, this pack lasts 6 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Taurine

  • Servings: 100 ÷ 3.3 per serving = 30.3
  • In the pack: 30.3 × 200 mg = 6.06 g
  • £29.99 ÷ 6.06 g × 1 g = £4.95 per 1 g
  • A week £4.95 × 7 = £34.64 · a month × 30 = £148.45 · a year × 365 = £1806.15
  • Amount per serving: stated on the label.

Folate

  • Servings: 100 ÷ 3.3 per serving = 30.3
  • In the pack: 30.3 × 200 µg = 6.06 mg
  • £29.99 ÷ 6.06 mg × 400 µg = £1.98 per 400 µg
  • A week £1.98 × 7 = £13.86 · a month × 30 = £59.38 · a year × 365 = £722.46
  • Amount per serving: stated on the label.

Vitamin B12

  • Servings: 100 ÷ 3.3 per serving = 30.3
  • In the pack: 30.3 × 3 µg = 90.9 µg
  • £29.99 ÷ 90.9 µg × 1 mg = £329.89 per 1 mg
  • A week £329.89 × 7 = £2309.23 · a month × 30 = £9896.70 · a year × 365 = £120409.85
  • Amount per serving: stated on the label.

Vitamin B6

  • Servings: 100 ÷ 3.3 per serving = 30.3
  • In the pack: 30.3 × 2.8 mg = 84.8 mg
  • £29.99 ÷ 84.8 mg × 50 mg = £17.67 per 50 mg
  • A week £17.67 × 7 = £123.71 · a month × 30 = £530.18 · a year × 365 = £6450.53
  • 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: taurine

All 10, ranked →
TaurineCheapest per 1 gBulk · 1 g a serving · 27p a month · a pack lasts 2.7 years1p£8.89View at Bulk (opens in a new tab)
TaurineBulk · 1 g a serving · 27p a month · a pack lasts 1.4 years1p£4.49View at Bulk (opens in a new tab)
L-Taurine 1200mgSimply Supplements · 1.2 g a serving · £2.23 a month · a pack lasts 5 months7p£10.69View at Simply Supplements (opens in a new tab)
This productHealf · 200 mg a serving · £148.45 a month · a pack lasts 6 days£4.95shown above

Ranked purely by price per 1 g. 59 combination products also contain taurine.

How it compares: methylfolate

All 22, ranked →
Methyl Folate 1,000 mcgCheapest per 400 µgHealf · 1 mg a serving · £1.27 a month · a pack lasts 7 months4p£9.49View at Healf (opens in a new tab)
5-MTHF 5 mgHealf · 5 mg a serving · £2.22 a month · a pack lasts 2.1 years7p£55.58View at Healf (opens in a new tab)
Vimergy5-MTHFHealf · 5 mg a serving · £2.36 a month · a pack lasts 2.1 years8p£58.99View at Healf (opens in a new tab)
This productHealf · 200 µg a serving · £59.38 a month · a pack lasts 15 days£1.98shown above

Ranked purely by price per 400 µg. 155 combination products also contain folate.

How it compares: vitamin B12 methylcobalamin

All 27, ranked →
WeightWorldVitamin B12 Methylcobalamin TabletsCheapest per 1 mgWeightWorld · 1 mg a serving · 60p a month · a pack lasts 1.2 years2p£8.99View at WeightWorld (opens in a new tab)
Vitamin B12 Tablets 1000mcgBulk · 1 mg a serving · 83p a month · a pack lasts 6 months3p£4.99View at Bulk (opens in a new tab)
Vitamin B12 Tablets 1000mcgBulk · 1 mg a serving · £1.25 a month · a pack lasts 2 months4p£2.49View at Bulk (opens in a new tab)
This productHealf · 3 µg a serving · £9896.70 a month · a pack lasts under a day£329.89shown above

Ranked purely by price per 1 mg. 218 combination products also contain vitamin B12.

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)
This productHealf · 2.8 mg a serving · £530.18 a month · a pack lasts 2 days£17.67shown above

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

On the label

Taurine · Taurine
200 mg per serving (stated on the label)
Folate · Methylfolate (5-MTHF)
200 µg per serving (stated on the label)
Pack
100 g · 30.3 servings · 3.3 g a serving
Cost per serving
99p (30.3 servings in the pack)
More label details
Vitamin B12 · Methylcobalamin
3 µg per serving (stated on the label)
Vitamin B6 · P-5-P (active form)
2.8 mg per serving (stated on the label)
Sold by
Healf
What the listing says
“and a natural sweetener - 100 g” · “30 Servings” · “Mix 1 scoop (3.3 g)” · “folate (calcium-L-methylfolate) 200 mcg”
Ingredients

Magnesium bisglycinate, magnesium citrate, acidity regulators, citric acid and malic acid, flavour: strawberry flavour, taurine, bulking agent: magnesium carbonate, anti-caking agent: silicon dioxide, sweetener: steviol glycosides from stevia, vitamin B6, folate, folic acid, vitamin B12

From the Healf listing. Check the pack itself if you have an allergy: labels mark allergens in bold.

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One 1 g dose is our comparison unit, not a recommendation.

Price history

No price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Price at every check
£29.99Healf
First recorded
£29.991 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. First checked at Healf: £29.99

Questions about this product

How much does Metagenics MegaMag® Calm cost per 400 µg?

£1.98 per 400 µg, from £29.99 for 100 g at Healf, checked on 20 October 2026.

How long does one pack last?

15 days at one 400 µg dose. The pack holds 6.06 mg in total.

How much does Metagenics MegaMag® Calm cost per 1 g?

£4.95 per 1 g, from £29.99 for 100 g at Healf, checked on 20 October 2026.

How long does one pack last?

6 days at one 1 g dose. The pack holds 6.06 g in total.

How much does Metagenics MegaMag® Calm cost per 1 mg?

£329.89 per 1 mg, from £29.99 for 100 g at Healf, checked on 20 October 2026.

How long does one pack last?

under a day at one 1 mg dose. The pack holds 90.9 µg in total.

How much does Metagenics MegaMag® Calm cost per 50 mg?

£17.67 per 50 mg, from £29.99 for 100 g at Healf, checked on 20 October 2026.

How long does one pack last?

2 days at one 50 mg dose. The pack holds 84.8 mg in total.

About Metagenics

All 126 Metagenics products, priced per dose

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