How much should a daily supplement cost in the UK?
A daily supplement in the UK can cost from about 3p a serving for an own-brand vitamin D tablet to about £3 a serving for an all-in-one powder: AG1 is £2.63 and IM8 £2.97 on subscription (checked 9 October 2026). The NHS says most people get what they need from a varied diet, plus vitamin D in autumn and winter.
How do you work out the cost per serving of a supplement?
Divide the price by the number of servings in the pack, not the number of tablets or scoops. That one number lets you compare a tub, a pouch, a box of sachets and a bottle of tablets fairly.
- Find the serving. Read the label's recommended daily dose. If it says two capsules, a pack of 60 capsules is 30 servings.
- Use the price you will actually pay. Introductory discounts often end after the first order. Use the recurring price.
- Divide. Price ÷ servings = cost per serving. For example, AG1's £79 subscription for 30 servings is £2.63 a serving.
- Multiply by 365 to see the yearly cost. At £2.63 a serving, that is about £961 a year.
Prices change; checked on 9 October 2026 on the brand's UK site.
Why does subscription vs one-off matter?
Because most all-in-one powders are priced to push you onto a subscription, and the gap is large. Compare the recurring subscription price with the one-off price, then decide which you will really keep.
- AG1 is £97 one-off or £79 on subscription for 30 servings, £18 less on subscription.
- IM8 is £112 one-off or £89 on subscription for 30 servings, £23 less on subscription.
Prices change; checked on 9 October 2026 on the brand's UK site. Before you subscribe, check three things: how often you are billed (every month or every 4 weeks makes a difference over a year), how far ahead you must cancel, and whether you get a reminder before each charge.
What would buying single supplements cost instead?
Much less than an all-in-one powder. Five separate own-brand tablets from Holland & Barrett came to about 35p a serving together on 21 October 2026.
| Product | Pack price | Tablets | Cost per tablet |
|---|---|---|---|
| Vitamin D 400 I.U. 10µg | £3.35 | 120 | 2.8p |
| Vitamin C 1000mg | £6.95 | 60 | 11.6p |
| Complete Vit B Complex | £5.35 | 120 | 4.5p |
| Magnesium 375mg | £9.45 | 90 | 10.5p |
| Zinc 15mg | £7.09 | 120 | 5.9p |
| All five, one tablet each | £32.19 | 35.3p | |
| Multivitamins (one product) | £8.29 | 240 | 3.5p |
The per-tablet figures assume one tablet is one serving; check each label's dose. Some of the range was on a multi-buy offer that day, which we left out.
This is a price illustration, not a suggestion to take all five. Most people do not need them all, and stacking several products can push some nutrients above the levels the NHS gives as unlikely to cause harm. What an all-in-one powder adds over tablets is the format and its plant and other ingredients, not necessarily more of the nutrients you need.
What does the NHS say most people need?
Often just vitamin D in autumn and winter. The NHS says most people should get all the nutrients they need from a varied and balanced diet, although some people may need extra supplements.
- Everyone should consider a daily 10µg vitamin D supplement during autumn and winter, the NHS says.
- Some adults should consider 10µg throughout the year, for example people who are not often outdoors, live in a care home or usually cover most of their skin. People with dark skin may also not make enough vitamin D from sunlight.
- Adults should not take more than 100µg (4,000 IU) of vitamin D daily, as it could be harmful.
So the cheapest way to follow the main NHS advice is one own-brand vitamin D tablet, at about 3p a tablet in the table above. For more, see whether you need a multivitamin and how many supplements you should take.
How do AG1, IM8 and VH Life compare per serving on subscription?
VH Life is the lowest of the three per serving on subscription; IM8 is the highest. All three cost far more than single tablets.
| Product | Subscription price | Servings | Per serving |
|---|---|---|---|
| AG1 | £79 | 30 | £2.63 |
| IM8 Daily Ultimate Essentials Pro | £89 every 4 weeks | 30 | £2.97 |
| VH Life | £49.99 every 4 weeks | 28 sachets | £1.79 a day on the £49.99 plan of 28 sachets every 4 weeks |
For 10 greens and all-in-one powders sold in the UK, priced the same way, see our AG1 alternatives table. For the two big names side by side, see IM8 vs AG1.
Where does VH Life fit?
VH Life is a UK-made food supplement in single 11.8g berry sachets, with 87 active ingredients. It is not the cheapest way to take vitamins and minerals; single tablets are. It is cheaper per serving on subscription than AG1 or IM8.
On subscription VH Life is £49.99 for 28 sachets every 4 weeks, which works out at £1.79 a day. You can also buy a 7-day trial (7 sachets, £12.99, one per customer) or one box of 14 sachets for £34.99. UK delivery is free, you can pause or cancel any time from your account, and unopened boxes can be returned within 30 days.
The box declares 62.5µg (2,500 IU) of vitamin D per sachet. That is above the NHS everyday suggestion of 10µg and under the 100µg upper limit. If you already take a vitamin D supplement, add up the total, and do not take both without checking.
If all you want is the NHS vitamin D advice, a single tablet costs far less. If you want one sachet in place of several bottles, you can see the VH Life plans and label.
Questions people also ask
How much does a greens powder cost in the UK?
Usually from under £1 to about £3 a serving, depending on the brand and whether you subscribe. AG1 is £2.63 a serving on subscription. Prices change; checked on 9 October 2026 on the brand's UK site. Our table of 10 products prices each one per serving.
Is it cheaper to buy vitamins separately?
Yes, usually by a wide margin. Five own-brand Holland & Barrett tablets came to about 35p a serving together on 21 October 2026, against £2.63 for AG1 on subscription. The trade-off is more bottles and more doses to remember.
Are cheap vitamins as good as expensive ones?
Price is not a measure of quality. In the UK every food supplement must show the amount of each vitamin and mineral, so you can compare labels directly. Check the amount per serving against the NRV and the NHS guidance rather than the price.
What is the cheapest way to follow NHS vitamin D advice?
A plain 10µg vitamin D tablet. Holland & Barrett's own brand was £3.35 for 120 tablets on 21 October 2026, about 3p a tablet. The NHS suggests adults consider 10µg daily in autumn and winter.
Is £80 a month too much for a supplement?
That depends on your budget and what you get for it. At AG1's £79 for 30 servings on subscription, a year costs about £961. Compare that with the single vitamin D tablet the NHS suggests most adults consider in autumn and winter.
Do I need to take a supplement every day?
Not necessarily. The NHS says most people should get the nutrients they need from a varied and balanced diet. The main exception is vitamin D, which everyone should consider in autumn and winter, and some people throughout the year.
Sources
- NHS: Vitamins and minerals, accessed 21 October 2026.
- NHS: Vitamin D, accessed 21 October 2026.
- AG1: AG1 Pouch, UK product page, prices checked 9 October 2026.
- IM8: Daily Ultimate Essentials Pro, UK page, accessed 21 October 2026.
- Holland & Barrett: Vitamin D tablets, accessed 21 October 2026.
- Holland & Barrett: Vitamin C tablets and supplements, accessed 21 October 2026.
- Holland & Barrett: Vitamin B supplements, accessed 21 October 2026.
- Holland & Barrett: Magnesium supplements, accessed 21 October 2026.
- Holland & Barrett: Zinc tablets, accessed 21 October 2026.
- Holland & Barrett: Multivitamins, accessed 21 October 2026.
Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. One sachet a day. Not suitable for children, adolescents, or pregnant or breastfeeding women. VH Life is a food supplement, not a medicine. If symptoms persist, see your GP or pharmacist.