If you eat a vegan diet, make a plan for B12 first. Then look at vitamin D, iodine and your usual meals before buying several supplements. A good choice covers a gap without repeating nutrients you already get from fortified foods or another product. Sometimes that is a multivitamin; sometimes one supplement will do.
In the UK, the NHS advises people on a vegan diet to get B12 from fortified foods or a supplement. It also advises everyone to consider 10 micrograms (400 IU) of vitamin D daily during autumn and winter. Beyond that, your meals, fortified foods and circumstances matter more than a general shopping list.
Which nutrients should vegans consider?
These eight nutrients are worth reviewing when you choose vegan daily vitamins. The last column gives you a starting point; what you eat and drink each week determines whether a supplement is useful.

|
Nutrient |
Why vegans need to think about it |
Food sources |
Supplement needed? |
|---|---|---|---|
|
Vitamin B12 |
Unfortified plant foods are not a reliable source. |
Fortified plant milks, breakfast cereals and nutritional yeast where the label specifies B12. |
Yes, unless you reliably get enough from fortified foods. The NHS advises fortified foods or a supplement. |
|
Vitamin D |
UK sunlight is limited in autumn and winter, whatever your diet. |
Fortified plant milks and cereals; some mushrooms contain vitamin D. |
Consider 10 micrograms (400 IU) a day in autumn and winter, in line with NHS advice for everyone. |
|
Iodine |
Fish and dairy are common sources in mixed diets. |
Plant milks fortified with iodine; some seaweed, though its iodine content varies. |
Possibly, if you seldom eat iodine-fortified foods. Avoid guessing from seaweed portions. |
|
Omega-3 (DHA and EPA) |
Fish oil is not vegan, and plant omega-3 foods mainly supply ALA rather than ready-made DHA and EPA. |
Ground flaxseed, chia seeds and walnuts for ALA; algae oil for DHA and EPA. |
Optional for many adults; consider algae-based DHA/EPA if you want a direct vegan source. |
|
Iron |
Plant iron can be harder to absorb than iron from animal foods. |
Lentils, beans, tofu, pumpkin seeds and fortified cereals. |
Not routinely. Discuss a blood test before taking iron to address a suspected deficiency. |
|
Calcium |
Removing dairy may reduce intake if it is not replaced. |
Calcium-fortified plant milks and yoghurt alternatives, calcium-set tofu, kale and other greens. |
Only if food intake falls short. Check how much calcium your usual plant milk provides. |
|
Zinc |
Intake may be low in a narrow diet based on few foods. |
Beans, lentils, wholegrains, nuts and seeds. |
Usually food first; a supplement may help if your diet has limited variety. |
|
Selenium |
Plant-food amounts can vary with growing conditions. |
Brazil nuts, wholegrains, beans and seeds. |
Not automatically. Review your diet and any multivitamin before adding a separate dose. |
Start with B12 and seasonal vitamin D
B12 needs a deliberate source because ordinary unfortified plant foods do not provide a dependable supply. If fortified foods are part of your regular routine, their labels will show how much B12 they provide. Otherwise, a B12 supplement is more straightforward. Cyanocobalamin and methylcobalamin are both forms you can look for in a finished product labelled vegan; you do not need to take both.
For vitamin D, keep the units clear: 10 micrograms equals 400 IU. In autumn and winter, that is the daily amount everyone in the UK is advised to consider. Lichen-derived D3 can be vegan, while standard D3 usually comes from lanolin. The letters “D3” alone will not tell you which you have; look for the ingredient source.
Iodine: useful, but do not guess the dose
If you drink iodine-fortified plant milk, it can provide a regular source. Some fortified plant milks have no iodine, so look at the carton. Seaweed also contains iodine, but the amount varies by type and product. A labelled serving gives you a clearer idea of your intake than a handful of seaweed.
InfiniVit’s Organic Seaweeds Blend is a suitable-for-vegans, Soil Association-registered option to consider in this category. Read its stated iodine amount alongside any iodine already in your multivitamin. If you have a thyroid condition, speak to your GP before taking an iodine or seaweed supplement.
DHA and EPA are different from ALA
Flaxseed, chia seeds and walnuts provide ALA, a plant omega-3. Algae oil supplies DHA and EPA directly, without fish oil. If you want DHA/EPA, compare the labelled amounts of each, rather than relying on the total “algae oil” figure. A general multivitamin may contain little or no DHA and EPA, making a separate product more useful.
Iron, calcium, zinc and selenium: look at meals first
Legumes, tofu, seeds, wholegrains and fortified foods can supply these nutrients. Eating a vitamin C-containing food with a plant-iron meal can help iron absorption. If you suspect low iron, ask about a blood test before taking a supplement. Tiredness alone does not tell you what is missing.
For calcium, compare the plant milks and yoghurt alternatives you buy; “plant-based” does not always mean calcium-fortified. Calcium-set tofu is another option. If your meals tend to repeat, look at your zinc and selenium intake too. A multivitamin, an immunity blend and a mineral tablet may each contain them.
All-in-one or targeted vegan supplements?
Your diet should drive this choice. An all-in-one can save you juggling several bottles if your meals are limited or you rarely use fortified foods. If you eat a varied diet and need only B12, seasonal vitamin D or a measured iodine source, you may prefer a targeted supplement.
|
Approach |
Best fit |
Main trade-off |
|---|---|---|
|
Broad multinutrient formula |
Several possible gaps and a preference for one routine |
Some nutrients may overlap with fortified foods or other supplements; check each amount. |
|
Targeted B12 or vitamin D |
A specific gap with the rest covered by food |
You must still review iodine and other nutrients in your diet. |
|
Targeted algae-based DHA/EPA |
A direct vegan omega-3 source is the goal |
It does not replace B12, iodine or a balanced diet. |
|
Food-form botanical blend |
You want plant ingredients as an addition to meals |
Do not assume it delivers dependable amounts of B12, vitamin D or iodine. |
InfiniVit’s Replenor illustrates the broad-formula approach: it contains B12 as methylcobalamin, vegan vitamin D3, iron bisglycinate, iodine, zinc and selenium. It is suitable for vegetarians and is available at Holland & Barrett. Vegetarian suitability is not a vegan claim: if a vegan label matters to you, choose a product explicitly identified as vegan. Because Replenor includes iron and iodine, check what else you already take rather than stacking it with another multi or mineral blend.
InfiniVit’s Organic Superfoods Capsules are an organic, plant-based food-form choice. Keep that separate from your plan for measured nutrients: a blend of plants cannot stand in for a labelled amount of B12 or vitamin D. Before adding a botanical blend to a broad formula or a B12 capsule, compare their nutrient labels for duplication.
To spot overlap, write down the nutrients in each bottle and fortified food you use. Include the serving size for B12, D, iodine, iron, zinc and selenium. An iodine-fortified plant milk, a daily multi containing iodine and a seaweed capsule, for example, would give you three sources of iodine. If two products contain the same nutrient, consider whether you need both, particularly with iron and iodine.
How to read a vegan supplement label
“Suitable for vegetarians” does not mean “suitable for vegans”. A vegetarian capsule may still contain ingredients derived from milk or bees. Many capsules use gelatine, which is neither vegetarian nor vegan. Plant-based HPMC (hydroxypropyl methylcellulose) is the vegetarian capsule-shell alternative, but the shell alone does not make every ingredient inside vegan.
InfiniVit uses plant-based HPMC capsule shells suitable for vegetarians. You will also find Soil Association organic and kosher options in the range. These labels tell you different things: neither organic nor kosher status establishes that a product is vegan. Look for a vegan statement on the specific product.
A short checklist before checkout
-
Look for an explicit vegan logo or written vegan statement for the finished product, not just “plant-based” in the name.
-
Check the source of D3: lichen-derived D3 is vegan-friendly; lanolin-derived D3 is not. Check for algae oil rather than fish oil if you want DHA/EPA.
-
Read the capsule shell and other ingredients for gelatine, lanolin, fish oil, beeswax, shellac or lactose. An HPMC shell solves the gelatine issue, not every other ingredient issue.
-
Compare the stated amount per daily serving, not per capsule if the serving is two capsules. Review B12, D, iodine, iron, zinc and selenium across all the products you take.
-
Separate measured nutrients from broad botanical ingredients. An impressive-looking plant list cannot tell you how much B12 you will get.
In the UK, vegan supplements are regulated as foods, not medicines. Their labels should not promise to treat, cure or prevent a disease. Be wary of sweeping promises; the nutrient amounts, ingredient sources and suitability statements are more useful buying information than dramatic wording.
Build a daily routine without doubling up
Start with what you normally eat. Write down any B12 you get from fortified plant milk or cereal; if those foods are not dependable sources for you, choose a B12 supplement you can take consistently. For autumn and winter, consider the NHS advice to take 10 micrograms (400 IU) of vitamin D daily.
Next, check whether the plant milk you use contains iodine and calcium. If iodine is missing, compare a clearly labelled supplement with the iodine already in any multinutrient formula. If you want direct DHA/EPA, algae oil is the vegan option. Food can often cover iron, calcium, zinc and selenium, so do not turn each row of the table into another purchase by default.
If you eat varied meals and use fortified foods regularly, you may need very little beyond them. If your diet is restricted or your meals change day to day, one well-labelled broad supplement may be easier to manage. Either way, compare the panels before combining an “energy” or “immunity” product with a daily multi.
If you are pregnant, breastfeeding, taking medication or managing a health condition, speak to your GP or pharmacist before choosing supplements. Ask about a blood test before taking iron for a suspected deficiency. If you have a thyroid condition, get advice before taking an iodine or seaweed product. Those conversations are particularly valuable when several products or prescribed treatments are already part of your routine.
The bottom line
The best vegan vitamins are those that address your actual intake: make B12 reliable, follow the UK’s seasonal vitamin D guidance, then consider iodine and other nutrients in the context of your food and current supplements. Choose algae oil if direct vegan DHA/EPA is a priority, and leave iron to a more informed decision rather than taking it automatically.
InfiniVit offers thoughtfully formulated options for different routines, from a broad multinutrient formula to plant-based and iodine-focused products. Browse the InfiniVit range with your label checklist in hand, or email info@infinivit.co.uk if you have a question about choosing between products.
FAQ
What vitamins should vegans take daily?
The NHS advises people eating a vegan diet to get B12 through fortified foods or a supplement. Your other daily choices depend on food intake; in the UK everyone is advised to consider 10 micrograms (400 IU) of vitamin D daily in autumn and winter.
What is the best daily multivitamin for vegans?
The best fit is a product explicitly labelled vegan that supplies nutrients your diet does not reliably provide, without duplicating another product. Compare the amounts of B12, vitamin D, iodine, iron, zinc and selenium per daily serving before choosing.
What vitamins do vegans lack most?
B12 is the first nutrient to plan for because unfortified plant foods are not a reliable source. Vitamin D deserves attention in UK autumn and winter; iodine, iron and other nutrients depend more on your usual foods and circumstances.
What is the best multivitamin for vegans in the UK?
Look for a clear vegan statement, a readable daily-serving panel and amounts that fit your diet rather than the longest ingredient list. If a product is labelled only vegetarian, do not assume that it is vegan.
Should I take a multivitamin if I’m vegan?
Not necessarily. A multivitamin can be convenient if several foods or nutrients are missing from your routine, but targeted B12 and seasonal vitamin D may be more suitable when the rest is covered by food.
Does NHS recommend multivitamins?
The relevant NHS advice here is to obtain B12 from fortified foods or a supplement when eating a vegan diet, and for everyone to consider 10 micrograms (400 IU) of vitamin D daily during autumn and winter. That is not a blanket instruction for every vegan to buy an all-in-one multivitamin.