Vegan Omega-3 Foods: The Best Plant-Based Sources

Omega-3 fatty acids are considered an important building block of a balanced diet, but are often only associated with fish. Anyone who lives vegan therefore does not have to do without omega-3: there are excellent plant-based sources. This guide shows you which vegan foods are particularly rich in omega-3, how the individual fatty acids differ, how high the requirement is and how you reliably ensure your supply in everyday life.

Why omega-3 is important

Omega-3 fatty acids are polyunsaturated fatty acids that the body partly cannot produce itself and therefore has to take in through food. A distinction is made above all between the plant-based alpha-linolenic acid (ALA) and the long-chain fatty acids EPA and DHA, which occur predominantly in fish and algae. According to the approved EU claims: DHA contributes to the maintenance of normal brain function and DHA contributes to the maintenance of normal vision. These effects are obtained with a daily intake of 250 mg DHA. In addition, ALA contributes to the maintenance of normal blood cholesterol levels.

For people who do not eat fish, it is crucial both to take in enough ALA through plants and to keep an eye on the supply of EPA and DHA. Since these two tasks concern different foods, it is worth deliberately building both routes into everyday life.

The best vegan omega-3 foods

These plant-based foods provide a lot of alpha-linolenic acid (ALA). Figures are guide values per 100 grams:

• Linseed oil: around 45 to 55 g ALA (by far the most productive source)
• Perilla oil: very high ALA content, often over 55 g
• Linseed (ground): about 20 to 23 g
• Chia seeds: around 17 to 18 g
• Hemp oil: about 15 to 20 g
• Walnut oil: around 10 g
• Walnuts: about 9 g
• Rapeseed oil: around 9 g
• Hemp seeds: about 8 to 10 g

For the long-chain fatty acids EPA and DHA there is a purely plant-based source: microalgae and algae oil. They provide DHA directly (and partly EPA) and are thus the obvious vegan alternative to fish oil. Strictly speaking, fish too originally get their omega-3 via the food chain from algae, so that algae oil is, in a sense, the source at the beginning of the chain.

ALA, EPA and DHA: the difference

The body first has to convert plant-based ALA into the long-chain fatty acids EPA and DHA. However, this conversion only works to a limited extent and varies from person to person; often only a small part of the ALA is actually converted into DHA. That is why, with a purely plant-based diet, a high ALA intake alone is not always enough to optimally cover the DHA supply.

For this reason, many people living vegan additionally reach for algae oil, which provides DHA directly, without the detour via the body's own conversion. Plenty of ALA from linseed, chia, walnuts and suitable oils nevertheless remains the sensible basis. A favourable ratio of omega-3 to omega-6 in the overall diet can additionally encourage the conversion, which is why it helps not to use very omega-6-rich oils such as sunflower or safflower oil in excess.

Daily requirement and recommendations

For ALA an intake is often named that makes up about 0.5 percent of the daily energy, for adults roughly around 2 to 2.5 g per day. For DHA, 250 mg daily is used as the reference amount in connection with the EU claims. Just one tablespoon of linseed oil easily covers the ALA recommendation, often even many times over. The direct DHA intake via algae oil is guided by the manufacturer's information for the respective product.

A practical everyday strategy: plan in some linseed oil or freshly ground linseed daily, use walnuts and chia regularly and keep an eye on the DHA supply via algae oil. In this way you combine a good basic ALA supply with a reliable DHA source, without being dependent on animal foods.

How you improve absorption

Omega-3 fatty acids are sensitive to heat, light and oxygen. You should therefore use linseed oil and other omega-3-rich oils cold, for example over salad, in dips or into the finished muesli, and not for frying. Store them cool, dark and well sealed, in the case of linseed oil ideally in the refrigerator, and use them up quickly after opening, as they otherwise go rancid.

Linseed is utilised considerably better ground than whole, since the hard shell otherwise passes through the intestine largely undigested. Therefore, it is best to grind it fresh, shortly before you use it. Good fat quality overall and a balanced ratio of omega-3 to omega-6 additionally support the supply. Anyone who combines some high-quality plant-based fat with every omega-3 meal also helps the body with the absorption of the fat-soluble components.

When supplementing makes sense

People living vegan, pregnant and breastfeeding women as well as people with an increased requirement often pay targeted attention to DHA. Since the conversion of ALA into DHA is limited, an algae oil preparation can help to ensure the direct DHA intake. Whether a supplement makes sense for you and in what amount, you discuss when in doubt with medical guidance, especially during pregnancy and breastfeeding, when the requirement is particularly in focus.

Omega-3 in everyday life: simple examples

The good news: a solid omega-3 supply can be built into the day without great effort. In the morning, stir a tablespoon of freshly ground linseed into the muesli, into the yoghurt or into the smoothie. With that you already cover the ALA recommendation to a large extent. Alternatively, a tablespoon of linseed oil fits over the finished porridge or into a fruit shake, where the mild taste is barely noticeable.

At lunch and dinner you can dress salads and vegetable dishes with a dressing made from rapeseed, hemp or walnut oil, instead of reaching for very omega-6-rich oils. A handful of walnuts is a practical snack on the go and provides fibre on the side. Chia seeds can be soaked overnight in a plant-based drink into a pudding, which likewise contributes ALA. Anyone who additionally wants to pay attention to DHA supplements this with a reliable algae oil source. In this way you combine several plant-based omega-3 suppliers spread over the day, without having to fundamentally change your meal plan.

A common mistake is to rely exclusively on a single food. Anyone who only occasionally uses a little linseed oil covers their requirement less reliably than someone who combines several sources and makes a fixed habit of it. It is therefore sensible to keep a small stock of the most important ingredients: a well-sealed bottle of linseed oil in the refrigerator, ground or whole linseed for fresh grinding, walnuts and chia seeds in the pantry. With this basic equipment, the ALA supply can be effortlessly spread over the week, while the DHA question is answered separately via algae oil. In this way the omega-3 supply remains stable and plannable even in a stressful everyday life. What is most important is to stick with it: a solid basic habit over weeks and months brings more than the single particularly omega-3-rich day that is then not repeated for a long time.

Suitable products

For the time of pregnancy and breastfeeding, our Breastfeeding complex with fenugreek, fennel, omega 3 and DHA offers a combination of selected nutrients. The DHA it contains contributes to the maintenance of normal brain function; this effect is obtained with a daily intake of 250 mg DHA. A varied, plant-focused diet with good omega-3 sources remains the foundation that such a product can supplement.

Frequently asked questions (FAQ)

Which vegan foods have the most omega-3?

The most productive is linseed oil, followed by linseed, chia seeds, hemp oil, walnuts and rapeseed oil. These provide the plant-based alpha-linolenic acid. For the long-chain fatty acids EPA and DHA, microalgae and algae oil are the purely plant-based source.

Is linseed oil enough to cover omega-3?

Linseed oil covers the requirement for alpha-linolenic acid very well, often already with one tablespoon. The conversion into DHA in the body is, however, limited. For a good DHA supply, many people living vegan therefore additionally use algae oil.

What is the difference between ALA, EPA and DHA?

ALA is the plant-based omega-3 fatty acid, EPA and DHA are the long-chain forms. The body only converts ALA into EPA and DHA to a limited extent, which is why a direct source such as algae oil can be helpful for DHA, especially with a purely plant-based diet.

How should I use linseed oil?

Use linseed oil cold, for example over salad or in muesli, and never for frying, as omega-3 is sensitive to heat. Store it cool, dark and sealed, ideally in the refrigerator, and use it up quickly after opening so that it does not go rancid.

Do vegans need an omega-3 supplement?

Not necessarily, but because of the limited conversion of ALA into DHA, many people living vegan pay targeted attention to DHA, for example via algae oil. Whether a supplement makes sense you best clarify individually, above all during pregnancy and breastfeeding.