How to Spot Vegan Supplements

You can spot a vegan supplement in three places: the capsule shell (plant-based = cellulose/HPMC, animal = gelatine), the origin of “hidden” raw materials such as vitamin D3, omega-3 and bee products – and, ideally, a credible vegan seal. Anyone who checks these three points will unmask almost any supposedly plant-based product that nonetheless contains animal-derived ingredients.

Picture yourself standing in the bathroom, turning a new tub of omega-3 over in your hand and reading “pure fish oil”. An open-and-shut case. But the tricky products are the ones with “plant-based” or “natural” printed large on the front – and a gelatine capsule hiding in the fine print. That is exactly where vegan parts ways with “looks vegan”.

Why vegan supplements take more detective work than food

With a piece of cheese or a schnitzel, the animal origin is obvious. In capsules and tablets it hides in components hardly anyone has on their radar: in the capsule shell, in the carrier, in the coating or in the origin of a single vitamin. An extract from grape seeds is 100% plant-based – and can still sit inside a shell made of beef or pork gelatine. That is why looking at the main active ingredient is not enough; you have to read the entire formulation. The guide How to Spot Additives and Fillers shows you how to categorise additives, carriers and shells in general, and Capsule, Tablet, Powder or Drops? explains the differences between the shells themselves.

The four classic pitfalls in detail

Four ingredients account for more than 90% of all “not vegan” cases. Once you have these four in mind, you are practically home and dry:

Vitamin D3 is particularly deceptive: it is chemically identical whether it comes from sheep’s wool or lichen – only the raw-material source decides whether it counts as “vegan” or not. For the omega-3 question, the direct comparison in Fish Oil vs. Algae Oil is worthwhile, and how to cover vegan omega-3 entirely via algae is set out in Covering Omega-3 the Vegan Way with Algae Oil. The vitamin D forms themselves are categorised by Vitamin D3 vs. D2.

Alongside these four classics, there are two further places where animal-derived matter hides: coatings and glazing agents (beeswax, shellac – the latter obtained from the secretion of scale insects) and individual carriers. Vitamin beadlets, too – tiny vitamin spheres encased in a shell, for example with fat-soluble vitamin A or D – can contain gelatine as the carrier material. And even “plant-based” collagen alternatives are a common misunderstanding: collagen is by definition an animal structural protein – “vegan collagen” generally refers to a nutrient complex intended to support the body’s own collagen formation, not collagen itself. Why that is so is explained by Collagen vs. Gelatine.

What happens in the body – and why some nutrients matter for those living vegan

A purely plant-based diet is rich in fibre, secondary plant compounds and many vitamins. A few nutrients, however, occur almost exclusively in animal-based foods or are less well available from plants – here a targeted look pays off:

• Vitamin B12 is produced by microorganisms and is found practically only in animal products. It contributes to normal energy metabolism and to the normal function of the nervous system – on a purely plant-based diet it is regarded as the critical nutrient par excellence. Details in Covering Vitamin B12 the Vegan Way.
• Iron from plants (non-haem iron) is absorbed less well than from meat – vitamin C with the meal improves uptake. Why is explained by Haem vs. Non-Haem Iron.
• Omega-3 (DHA/EPA) occurs in plants almost only as the precursor ALA – conversion in the body is limited, which is why algae oil is a direct source.
• Iodine, zinc, selenium and vitamin D are worth keeping an eye on depending on your diet.

A complete overview of which nutrients matter on a plant-based diet is given by Nutrients for Vegans; the differences from a vegetarian diet are explained by Vegetarian vs. Vegan: The Difference.

Vegan alternatives: today there is a plant-based solution for almost everything

The good news first: the market has caught up. For practically every nutrient and every dosage form there is an animal-free version – often without any compromise on quality or dosage. Algae oil supplies DHA and EPA directly from the very source from which fish obtain their omega-3. Vegan vitamin D3 comes from lichen and is chemically the same molecule as the one from sheep’s wool. The vast majority of vitamins and minerals are synthetically or plant-derived anyway and are therefore unproblematic. As for shells, HPMC capsules, tablets, powders and drops offer animal-free options – which form makes sense when is shown by Capsule or Softgel?. Anyone who wants to pay particular attention to a lean formulation will find in Synthetic or Natural Vitamins? an honest assessment of why “synthetic” need not be a drawback.

What research is investigating

Well established and textbook knowledge is that vitamin B12 must be supplemented on a purely plant-based diet – there is broad consensus on this in nutritional science. Beyond that, researchers are investigating how efficiently the body converts the plant-based omega-3 precursor ALA into the long-chain fatty acids EPA and DHA; the data point to a highly individual and, overall, rather low conversion rate, which is why algae oil is discussed as a direct source. For iron and zinc, research is concerned with bioavailability from plant sources and the influence of accompanying substances such as phytates and vitamin C. These are lines of research – not a promise of efficacy for any single product.

Your concrete approach when buying

A quick checking routine that works in under a minute:

1. Seal first: a credible vegan label (e.g. the V-Label flower) does most of the work for you. If it is missing, move on to step 2.
2. Check the capsule shell: if it says “gelatine”, it is animal-derived. “Cellulose” or “HPMC” is plant-based.
3. Origin of the usual suspects: for vitamin D3 and omega-3, look specifically for “from lichen” or “algae oil”.
4. Rule out bee products: propolis, royal jelly, honey, beeswax coating.
5. When in doubt, ask: a reputable manufacturer will answer the question of origin transparently.

If you want to read ingredient lists confidently in general, Reading the Label Correctly will help. What a vegan seal is worth also depends on the testing behind it – background on verified quality is provided by Lab-Tested: What Does That Mean?.

Honestly assessed

What is certain: the components mentioned can be reliably classified as animal-derived or plant-based, and for practically every purpose a vegan alternative now exists. Equally certain is the need to supplement vitamin B12 on a purely plant-based diet. What remains open and individual is which further nutrients you personally should supplement – that depends on your diet, your stage of life and your blood values. A “vegan” label also says nothing about the quality or dosage of a product; you check both in addition. For specific questions about your own nutrient supply, a medical assessment is the best route.

Matching products from Scheunengut

You will find plant-based options among our algae products as a source of vegan omega-3, in the Vitamins category and among the Minerals. An overall overview is offered by All Products. Labelling and ingredients are declared transparently on every product – lab-tested and made in Germany.

Frequently asked questions (FAQ)

How can I tell straight away whether a capsule is vegan?

Quickest of all is the vegan seal. If it is missing, check the capsule shell: “gelatine” is animal-derived, “cellulose” or “HPMC” (hydroxypropyl methylcellulose) is plant-based. In addition, it is worth looking at the vitamin D3 origin, the omega-3 source and bee products.

Is vitamin D3 always animal-derived?

No. Vitamin D3 is traditionally obtained from lanolin (sheep’s wool), but there is chemically identical D3 from lichen – and that is vegan. Look for the wording “from lichen” or a vegan label. Vitamin D2 is generally plant-based.

Which nutrient is most important on a vegan diet?

Vitamin B12, because it occurs practically only in animal-based foods and must be reliably supplemented on a purely plant-based diet. It contributes to normal energy metabolism and to the normal function of the nervous system. You should also keep an eye on iron, iodine, omega-3 (DHA/EPA) and vitamin D depending on your diet.

Is plant-based omega-3 equivalent to fish oil?

Algae oil supplies the long-chain fatty acids EPA and DHA directly – the very same ones found in fish oil (fish originally take them up via algae). The plant precursor ALA from linseed or rapeseed oil, by contrast, is only converted by the body to a limited extent. For a direct intake of EPA/DHA, algae oil is therefore the vegan choice.

How we at Scheunengut ensure verified purity from raw material to tub is explained on our page about the Clean Earth Badge.