What Vitamins Should I Take? A Practical UK Guide
It usually starts in a pharmacy aisle, or in a browser tab at eleven at night. Vitamin D, B12, magnesium, zinc, a greens powder, two collagen tubs — and no obvious way to tell which of them you actually need.
If you have found yourself asking what vitamins should I take, the useful answer depends less on what is trending and more on what your everyday diet already gives you. This guide covers how to work that out, where UK adults most commonly fall short, and when one comprehensive multivitamin beats six separate bottles.
What Vitamins Should I Take? Start With Your Diet, Not the Shelf
Supplements are called food supplements for a reason. They are designed to top up a varied, balanced diet — not to replace one, and not to be chosen at random.
So the first question is not which bottle to buy, but where your intake is genuinely thin. Someone eating oily fish twice a week and plenty of vegetables has a very different gap list from someone living on coffee and meal deals.
A quick audit: look at your last seven days honestly. How many portions of fruit and vegetables? Any oily fish, wholegrains, nuts, seeds, pulses or dairy? The thin spots in that week are your starting point.
Where UK Adults Most Often Fall Short
Some gaps show up again and again in UK diets, and one is more about geography than groceries.
Vitamin D. Between roughly October and March, UK sunlight is too weak for the skin to make meaningful amounts — which is why a daily supplement through the darker months is standard UK public health advice. Vitamin D contributes to the normal function of the immune system and to the maintenance of normal bones, teeth and muscle function.
Vitamin B12 and folate. B12 comes almost entirely from animal foods, so plant-based and reduced-meat eaters are exposed. Both contribute to normal red blood cell formation and to the reduction of tiredness and fatigue.
Magnesium, zinc and iodine. These travel with wholefoods, shellfish and dairy — the first things to disappear from a rushed week. Magnesium contributes to normal muscle function and the reduction of tiredness and fatigue, zinc to the maintenance of normal hair, skin and nails, and iodine to normal thyroid function.
Notice how often fatigue appears on that list. It is why so many people arrive looking for a multivitamin for tiredness — and why the honest version of that search means covering several nutrients at once, not finding one magic ingredient.
Key Benefits of a High-Strength Multivitamin
A multivitamin is not a cure for a poor diet. Used sensibly, it is a floor under an inconsistent one.
It covers several gaps at once. Rather than guessing between four bottles, one format addresses the nutrients most likely to be short at the same time. That is really what people mean when they ask what does a multivitamin do.
It targets the fatigue cluster properly. Thiamin, riboflavin, niacin, B6, folate, B12, magnesium, iron and vitamin C all contribute to normal energy-yielding metabolism, the reduction of tiredness and fatigue, or both. Tiredness is rarely a single-nutrient story.
It supports the visible things too. If you came looking for a multivitamin for hair, skin and nails, the relevant nutrients are zinc and selenium, which contribute to the maintenance of normal hair and nails, plus biotin and niacin for the maintenance of normal skin.
It is one habit instead of six. Consistency decides whether a supplement routine does anything, and a single daily step survives a busy week where a six-bottle regimen does not.
How Nutrian Multi+ Works
Nutrian Multi+ delivers 22 essential vitamins and minerals in two capsules taken daily with food. The 120-capsule pouch is a two-month supply.
The design principle is meaningful doses rather than token ones: 1000 IU of vitamin D3, 500mg of vitamin C and 15mg of zinc, alongside the full B-complex — B1, B2, B3, B5, B6, B7, B9 and B12 — plus vitamins A, E and K2 and the minerals magnesium, iron, selenium, chromium and iodine. Taurine and coenzyme Q10 are also included as ingredients; neither holds an authorised EU or UK health claim, so no benefit is attributed to them here.
Two details matter for absorption. A two-capsule serving rather than a single tablet is what makes room for real doses. And the instruction to take it with food is not filler: vitamins A, D, E and K are fat-soluble, so a meal containing some fat improves how well they are taken up.
It is made in the UK in a GMP-certified facility, in a plant-based, halal-friendly HPMC capsule with no animal gelatin and no artificial colours or flavours. At £18.99 for 120 capsules, two months of cover is roughly 32p a day.
What to Take With a Multivitamin
A good multivitamin is a baseline. Two Nutrian products pair with it sensibly, depending on where your own gaps sit.
If tiredness is the main complaint, Nutrian B Complex+ adds all eight B vitamins in their bioactive forms, including B12 as methylcobalamin and folate as methylfolate. B12 contributes to the reduction of tiredness and fatigue and to normal neurological function; thiamin contributes to normal energy-yielding metabolism. It is £8.99 for 60 capsules.
If magnesium is the priority, Nutrian Calm+ provides 350mg of elemental magnesium per serving — 93% of the UK NRV — from bisglycinate, citrate and malate. Magnesium contributes to normal muscle function, normal functioning of the nervous system and the reduction of tiredness and fatigue. Multivitamins typically carry modest magnesium, so this is a genuine top-up rather than a duplicate. From £8.99.
Do check the labels when stacking, and do not exceed the recommended intake on any product.
Who Should Take a Multivitamin?
It suits adults whose diet is decent in principle and patchy in practice:
Busy professionals and shift workers who eat whatever is fastest more often than they would like.
Anyone on a restricted diet — plant-based, dairy-free, low FODMAP — where whole food groups are off the table.
Adults over 40, for whom absorption of some nutrients, B12 among them, becomes less efficient.
Anyone through a British winter, when vitamin D from sunlight is off the table for months.
It is not the right starting point if you are pregnant, breastfeeding, taking prescription medication or managing a diagnosed condition — speak to your GP or pharmacist first, particularly about iron and vitamin A.
Still Asking What Vitamins Should I Take? A Simple Decision Path
One: cover the broad base. If your diet is inconsistent across the board, a comprehensive multivitamin does more than any single nutrient bought in isolation.
Two: add for your specific gap. Plant-based and worried about B12? Add a B complex. Training hard, or short on nuts, seeds and greens? Add magnesium.
Three: give it time, and be realistic. People often ask whether multivitamins work. The fair answer is that they do what the label says — help fill nutritional gaps. They do not treat conditions and do not replace sleep, food or exercise, and any change is a matter of weeks rather than days.
If step one is where you are, Nutrian Multi+ is built for exactly that job: 22 vitamins and minerals at meaningful doses, two capsules a day, two months in a pouch, made in the UK and halal-friendly. It is the simplest honest answer to the question you started with.
Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended intake. If you are pregnant, breastfeeding, taking medication or under medical supervision, consult a healthcare professional before use.