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Diet Aid Capsules, 180 capsules

£23.49 for 180 capsules at Myprotein. 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 150 µg iodine22pOne 150 µg dose is our comparison unit for iodine. It is not a recommendation.
A day22p
A week£1.57
A month£6.75
A year£82.12

At one 150 µg dose a day, this pack lasts 3 months. A month is 30 days, so twelve of them is not quite a year.

How we worked it out

Iodine

  • Servings: 180 ÷ 2 per serving = 90
  • In the pack: 90 × 174 µg = 15.7 mg
  • £23.49 ÷ 15.7 mg × 150 µg = 22.5p per 150 µg iodine
  • A week 22.5p × 7 = £1.57 · a month × 30 = £6.75 · a year × 365 = £82.12
  • Amount per serving: stated on the label.

Caffeine

  • Servings: 180 ÷ 2 per serving = 90
  • In the pack: 90 × 200 mg = 18 g
  • £23.49 ÷ 18 g × 200 mg = 26.1p per 200 mg
  • A week 26.1p × 7 = £1.83 · a month × 30 = £7.83 · a year × 365 = £95.27
  • Amount per serving: stated on the label.

Niacin (vitamin B3)

  • Servings: 180 ÷ 2 per serving = 90
  • In the pack: 90 × 16 mg = 1.44 g
  • £23.49 ÷ 1.44 g × 500 mg = £8.16 per 500 mg
  • A week £8.16 × 7 = £57.09 · a month × 30 = £244.69 · a year × 365 = £2977.03
  • Amount per serving: stated on the label.

Pantothenic acid (B5)

  • Servings: 180 ÷ 2 per serving = 90
  • In the pack: 90 × 12 mg = 1.08 g
  • £23.49 ÷ 1.08 g × 500 mg = £10.88 per 500 mg
  • A week £10.88 × 7 = £76.13 · a month × 30 = £326.25 · a year × 365 = £3969.38
  • Amount per serving: stated on the label.

Vitamin D3

  • Servings: 180 ÷ 2 per serving = 90
  • In the pack: 90 × 400 IU = 36,000 IU
  • £23.49 ÷ 36,000 IU × 1,000 IU = 65.3p per 1,000 IU
  • A week 65.3p × 7 = £4.57 · a month × 30 = £19.58 · a year × 365 = £238.16
  • 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: kelp

Compare every product in this form →
Sea Kelp Capsules 4200mgCheapest per 150 µg iodineSimply Supplements · 600 µg a serving · £1.87 a month · a pack lasts 5 months6p£9.99View at Simply Supplements (opens in a new tab)
IodineTogether Health · 293 µg a serving · £3.58 a month · a pack lasts 59 days12p£6.99View at Together Health (opens in a new tab)
5 Seaweed BlendHealf · 150 µg a serving · £23.49 a month · a pack lasts 30 days78p£23.49View at Healf (opens in a new tab)
This productMyprotein · 174 µg a serving · £6.75 a month · a pack lasts 3 months22pshown above

Ranked purely by price per 150 µg iodine. 24 combination products also contain iodine.

How it compares: caffeine

All 6, ranked →
Caffeine 200mgCheapest per 200 mgBulk · 200 mg a serving · £1.38 a month · a pack lasts 8 months5p£11.49View at Bulk (opens in a new tab)
Caffeine 200mgBulk · 200 mg a serving · £1.50 a month · a pack lasts 3 months5p£4.99View at Bulk (opens in a new tab)
Pure Caffeine TabletsMyprotein · 200 mg a serving · £1.95 a month · a pack lasts 7 months6p£12.99View at Myprotein (opens in a new tab)
This productMyprotein · 200 mg a serving · £7.83 a month · a pack lasts 3 months26pshown above

Ranked purely by price per 200 mg. 88 combination products also contain caffeine.

How it compares: niacin (vitamin B3)

Compare every product in this form →
HealthAidVitamin B3 250mg 90 TabletsCheapest per 500 mgLloyds Pharmacy · 250 mg a serving · £7.35 a month · a pack lasts 45 days25p£11.03View at Lloyds Pharmacy (opens in a new tab)
This productMyprotein · 16 mg a serving · £244.69 a month · a pack lasts 3 days£8.16shown above

Ranked purely by price per 500 mg. 116 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 productMyprotein · 12 mg a serving · £326.25 a month · a pack lasts 2 days£10.88shown above

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

How it compares: vitamin D3

All 207, ranked →
WeightWorldHigh-Strength Vitamin D3 TabletsCheapest per 1,000 IUWeightWorld · 4,000 IU a serving · 17p a month · a pack lasts 4.4 years1p£8.99View at WeightWorld (opens in a new tab)
ZipVitVitamin D3 4000iuZipVit · 4,000 IU a serving · 17p a month · a pack lasts 4 years1p£8.49View at ZipVit (opens in a new tab)
WeightWorldVitamin D3 + K2 (MK7) TabletsWeightWorld · 4,000 IU a serving · 21p a month · a pack lasts 4 years1p£9.99View at WeightWorld (opens in a new tab)
This productMyprotein · 400 IU a serving · £19.58 a month · a pack lasts 36 days65pshown above

Ranked purely by price per 1,000 IU. 439 combination products also contain vitamin D3.

On the label

Iodine · Kelp
174 µg per serving (stated on the label)
Caffeine · Caffeine
200 mg per serving (stated on the label)
Pack
180 capsules · 90 servings · 2 capsule(s) a serving
Cost per serving
26p (90 servings in the pack)
More label details
Niacin (vitamin B3) · Niacin (nicotinic acid)
16 mg per serving (stated on the label)
Pantothenic acid (B5) · Pantothenic acid (B5)
12 mg per serving (stated on the label)
Vitamin D3 · Vitamin D3
400 IU per serving (stated on the label)
Claimed on the listing
vegetarian
Barcode
5055936868083
Sold by
Myprotein
What the listing says
“180Capsules” · “Consume 2 capsules daily” · “Caffeine ; - ; 200.0mg”
Ingredients

Green Coffee Bean (Coffea L.) Extract 5:1, Seagreens® (Ascophyllum Nodosum), Capsule Shell (Glazing Agent (Hydroxypropyl Methyl Cellulose), Water), Caffeine Anhydrous, Guarana Seed Powder (Paullinia cupana), Colour (Caramel), Kola Nut (Cola acuminata) 25:1 Extract, Green Tea (Camellia sinensis) 15:1 Extract, Bulking Agent (Microcrystalline Cellulose), Anti-Caking Agents (Magnesium Stearate, Silicon Dioxide), Niacin, Pantothenic Acid, Vitamin D3. May also contain Fish, Crustaceans and Molluscs.

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

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One 150 µg dose is our comparison unit, not a recommendation.

Price history

No price change since 3 October 2026. Checked on 18 days, most recently 20 October 2026.

Price at every check
£23.49Myprotein
First recorded
£23.493 Oct
Checked on
18 dayssince 3 Oct
Pack price at each check.
  1. First checked at Myprotein: £23.49

Questions about this product

How much does Myprotein Diet Aid Capsules cost per 200 mg?

26p per 200 mg, from £23.49 for 180 capsules at Myprotein, checked on 20 October 2026.

How long does one pack last?

3 months at one 200 mg dose. The pack holds 18 g in total.

How much does Myprotein Diet Aid Capsules cost per 150 µg iodine?

22p per 150 µg iodine, from £23.49 for 180 capsules at Myprotein, checked on 20 October 2026.

How long does one pack last?

3 months at one 150 µg dose. The pack holds 15.7 mg in total.

How much does Myprotein Diet Aid Capsules cost per 500 mg?

£8.16 per 500 mg, from £23.49 for 180 capsules at Myprotein, checked on 20 October 2026.

How long does one pack last?

3 days at one 500 mg dose. The pack holds 1.44 g in total.

How much does Myprotein Diet Aid Capsules cost per 500 mg?

£10.88 per 500 mg, from £23.49 for 180 capsules at Myprotein, checked on 20 October 2026.

How long does one pack last?

2 days at one 500 mg dose. The pack holds 1.08 g in total.

How much does Myprotein Diet Aid Capsules cost per 1,000 IU?

65p per 1,000 IU, from £23.49 for 180 capsules at Myprotein, checked on 20 October 2026.

How long does one pack last?

36 days at one 1,000 IU dose. The pack holds 36,000 IU in total.

About Myprotein

Founded 2004 · Manchester, England · Part of THG plc

Myprotein is a sports nutrition brand founded in 2004 by Oliver Cookson and bought in 2011 by The Hut Group, now the London-listed THG plc. It is based in Manchester and is part of THG's nutrition division.

All 558 Myprotein products, priced per doseVisit Myprotein (opens in a new tab)

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