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MegaMag®Energen Plus (Raspberry), 225 g

£34.52 for 225 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 100 mg magnesium60pOne 100 mg dose is our comparison unit for magnesium. It is not a recommendation.
A day60p
A week£4.19
A month£17.95
A year£218.40

At one 100 mg dose a day, this pack lasts 58 days. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Magnesium

  • Servings: 225 ÷ 7.8 per serving = 28.8
  • In the pack: 28.8 × 200 mg = 5.77 g
  • £34.52 ÷ 5.77 g × 100 mg = 59.8p per 100 mg magnesium
  • A week 59.8p × 7 = £4.19 · a month × 30 = £17.95 · a year × 365 = £218.40
  • Amount per serving: stated on the label.

Niacin (vitamin B3)

  • Servings: 225 ÷ 7.8 per serving = 28.8
  • In the pack: 28.8 × 20 mg = 576.9 mg
  • £34.52 ÷ 576.9 mg × 500 mg = £29.92 per 500 mg
  • A week £29.92 × 7 = £209.42 · a month × 30 = £897.52 · a year × 365 = £10919.83
  • Amount per serving: stated on the label.

Pantothenic acid (B5)

  • Servings: 225 ÷ 7.8 per serving = 28.8
  • In the pack: 28.8 × 20 mg = 576.9 mg
  • £34.52 ÷ 576.9 mg × 500 mg = £29.92 per 500 mg
  • A week £29.92 × 7 = £209.42 · a month × 30 = £897.52 · a year × 365 = £10919.83
  • Amount per serving: stated on the label.

Riboflavin (vitamin B2)

  • Servings: 225 ÷ 7.8 per serving = 28.8
  • In the pack: 28.8 × 20 mg = 576.9 mg
  • £34.52 ÷ 576.9 mg × 100 mg = £5.98 per 100 mg
  • A week £5.98 × 7 = £41.88 · a month × 30 = £179.50 · a year × 365 = £2183.97
  • Amount per serving: stated on the label.

Thiamine (vitamin B1)

  • Servings: 225 ÷ 7.8 per serving = 28.8
  • In the pack: 28.8 × 25 mg = 721.2 mg
  • £34.52 ÷ 721.2 mg × 100 mg = £4.79 per 100 mg
  • A week £4.79 × 7 = £33.51 · a month × 30 = £143.60 · a year × 365 = £1747.17
  • Amount per serving: stated on the label.

Vitamin C

  • Servings: 225 ÷ 7.8 per serving = 28.8
  • In the pack: 28.8 × 500 mg = 14.4 g
  • £34.52 ÷ 14.4 g × 1 g = £2.39 per 1 g
  • A week £2.39 × 7 = £16.75 · a month × 30 = £71.80 · a year × 365 = £873.59
  • 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)
This productHealf · 200 mg a serving · £17.95 a month · a pack lasts 58 days60pshown 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: niacinamide

All 5, ranked →
Niacinamide TabletsCheapest per 500 mgMyprotein · 450 mg a serving · £1.85 a month · a pack lasts 3 months6p£4.99View at Myprotein (opens in a new tab)
Niacinamide TabletsMyprotein · 450 mg a serving · £3.32 a month · a pack lasts 27 days11p£2.99View at Myprotein (opens in a new tab)
NiacinamideHealf · 500 mg a serving · £3.42 a month · a pack lasts 6 months11p£20.49View at Healf (opens in a new tab)
This productHealf · 20 mg a serving · £897.52 a month · a pack lasts 1 day£29.92shown above

Ranked purely by price per 500 mg. 164 combination products also contain niacin (vitamin B3).

How it compares: pantothenic acid (B5)

Compare every product in this form →
Pantothenic AcidCheapest per 500 mgHealf · 500 mg a serving · £4.71 a month · a pack lasts 3 months16p£15.69View at Healf (opens in a new tab)
Vitamin B5 500mg Pantothenic AcidLamberts Healthcare (Nature's Best) · 500 mg a serving · £5.25 a month · a pack lasts 2 months18p£10.50View at Lamberts Healthcare (opens in a new tab)
HealthAidCalcium Pantothenate (Vitamin B5) 750mg Prolonged ReleaseVitamin Planet · 750 mg a serving · £11.53 a month · a pack lasts 45 days38p£17.30View at Vitamin Planet (opens in a new tab)
This productHealf · 20 mg a serving · £897.52 a month · a pack lasts 1 day£29.92shown above

Ranked purely by price per 500 mg. 189 combination products also contain pantothenic acid (B5).

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)
This productHealf · 20 mg a serving · £179.50 a month · a pack lasts 6 days£5.98shown 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)
This productHealf · 25 mg a serving · £143.60 a month · a pack lasts 7 days£4.79shown above

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

How it compares: vitamin C

All 113, ranked →
Vitamin C Plus TabletsCheapest per 1 gMyprotein · 1 g a serving · £1.00 a month · a pack lasts 6 months3p£5.99View at Myprotein (opens in a new tab)
Vitamin C Crystals PowderHealf · 1.1 g a serving · £1.01 a month · a pack lasts 7 months3p£7.61View at Healf (opens in a new tab)
Vitamin C PowderLamberts Healthcare (Nature's Best) · 1 g a serving · £1.50 a month · a pack lasts 8 months5p£12.50View at Lamberts Healthcare (opens in a new tab)
This productHealf · 500 mg a serving · £71.80 a month · a pack lasts 14 days£2.39shown above

Ranked purely by price per 1 g. 950 combination products also contain vitamin C.

On the label

Magnesium · Bisglycinate (glycinate)
200 mg per serving (stated on the label)
Niacin (vitamin B3) · Niacinamide
20 mg per serving (stated on the label)
Pack
225 g · 28.8 servings · 7.8 g a serving
Cost per serving
£1.20 (28.8 servings in the pack)
More label details
Pantothenic acid (B5) · Pantothenic acid (B5)
20 mg per serving (stated on the label)
Riboflavin (vitamin B2) · Riboflavin
20 mg per serving (stated on the label)
Thiamine (vitamin B1) · Thiamine
25 mg per serving (stated on the label)
Vitamin C · Standard (ascorbic acid and ascorbates)
500 mg per serving (stated on the label)
Claimed on the listing
vegan
Sold by
Healf
What the listing says
“225g” · “234 g (30 servings)” · “Mix 1 scoop (7.8 g)” · “Magnesium (bisglycinate) ; 200 mg”
Ingredients

Magnesium Bisglycinate, Sweetener: Maltodextrin, N-Acetyl-Carnitine, Malic Acid, Flavour: Raspberry Flavour, Ascorbic Acid, Sweetener: Maltitol, KSM-66® Ashwagandha Root Extract (Withania Somnifera), Colour: Red Beet Powder, Thickener: Guar Gum, Zinc Citrate, Thiamine Hydrochloride, Sweetener: Steviol Glycosides From Stevia, Calcium Pantothenate, Riboflavin, Niacinamide, Selenomethionine And Potassium Iodide.

From the Healf 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.

Price history

1 price change since 1 October 2026. Checked on 20 days, most recently 20 October 2026.

Lowest recorded
£34.529 Oct
Highest recorded
£42.991 Oct
First recorded
£42.991 Oct
Checked on
20 dayssince 1 Oct
Pack price at each check.
  1. Down at Healf: £42.99 → £34.52 (−20%)
  2. First checked at Healf: £42.99

Questions about this product

How much does Metagenics MegaMag®Energen Plus (Raspberry) cost per 100 mg magnesium?

60p per 100 mg magnesium, from £34.52 for 225 g at Healf, checked on 20 October 2026.

How long does one pack last?

58 days at one 100 mg dose. The pack holds 5.77 g in total.

How much does Metagenics MegaMag®Energen Plus (Raspberry) cost per 500 mg?

£29.92 per 500 mg, from £34.52 for 225 g at Healf, checked on 20 October 2026.

How long does one pack last?

1 day at one 500 mg dose. The pack holds 576.9 mg in total.

How much does Metagenics MegaMag®Energen Plus (Raspberry) cost per 500 mg?

£29.92 per 500 mg, from £34.52 for 225 g at Healf, checked on 20 October 2026.

How long does one pack last?

1 day at one 500 mg dose. The pack holds 576.9 mg in total.

How much does Metagenics MegaMag®Energen Plus (Raspberry) cost per 100 mg?

£5.98 per 100 mg, from £34.52 for 225 g at Healf, checked on 20 October 2026.

How long does one pack last?

6 days at one 100 mg dose. The pack holds 576.9 mg in total.

How much does Metagenics MegaMag®Energen Plus (Raspberry) cost per 100 mg?

£4.79 per 100 mg, from £34.52 for 225 g at Healf, checked on 20 October 2026.

How long does one pack last?

7 days at one 100 mg dose. The pack holds 721.2 mg in total.

How much does Metagenics MegaMag®Energen Plus (Raspberry) cost per 1 g?

£2.39 per 1 g, from £34.52 for 225 g at Healf, checked on 20 October 2026.

How long does one pack last?

14 days at one 1 g dose. The pack holds 14.4 g in total.

About Metagenics

All 126 Metagenics products, priced per dose

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