Hemp Facts

Omega-3 and Omega-6 Fatty Acids: Effects, Sources & Daily Requirements

Omega 3 and 6 fatty acids daily requirement covered with hemp seed oil

Fats have long had a bad reputation in nutrition. But today we know: not all fats are the same. Especially omega-3 and omega-6 fatty acids play a crucial role in our health. They are among the essential fatty acids that the body cannot produce itself – we have to get them from our diet.

In this article, you will learn why the right ratio between Omega-3 and Omega-6 is so important, which foods are rich in these fatty acids, and how much you should consume daily to optimally support the heart, brain, and immune system.

What are Omega-3 and Omega-6 Fatty Acids?

Both belong to the polyunsaturated fatty acids (PUFAs). They fulfill central functions:

Omega-3 fatty acids (EPA, DHA, ALA) act anti-inflammatory, support the cardiovascular system, promote brain function, and can reduce the risk of certain chronic diseases.
Omega-6 fatty acids (especially linoleic acid) are also important, for example for skin, hair, and wound healing. However, they tend to be pro-inflammatory if consumed in excessive amounts.

The problem: In Western diets, the ratio of Omega-6 : Omega-3 is often 15 : 1 or higher, but 5 : 1 or less is recommended (German Nutrition Society). An imbalance can promote chronic inflammation, heart problems, or joint complaints.

Which Effects are Scientifically Proven?

Heart Health: Numerous studies show that EPA and DHA can reduce the risk of arrhythmias and vascular calcification.
Brain & Psyche: Omega-3 is associated with better memory performance, concentration ability, and a lower risk of Alzheimer’s. A study by the University of Zurich (2025) showed that daily intake of 1 g Omega-3 can measurably reduce biological age.
Anti-inflammatory: A balanced ratio can reduce silent inflammation in the body and positively influence autoimmune diseases.

Natural Sources of Omega-3 and Omega-6

To ensure supply, it is worthwhile to include various foods in the diet.

Plant Sources

Hemp seeds & hemp seed oil: Rich in alpha-linolenic acid (ALA, an Omega-3 fatty acid) as well as Omega-6. The ratio is about 3 : 1, close to ideal.
Flaxseeds & flaxseed oil: One of the best plant-based Omega-3 foods. Just 1 tablespoon of flaxseed oil covers almost the daily requirement of ALA.
Chia seeds: Also rich in ALA, versatile for use (e.g., in pudding or smoothies).
Walnuts: Good plant-based source of ALA and easy to integrate into daily life.
Algae oil: Vegan alternative that also provides EPA and DHA.

Animal Sources

Fatty fish and fish oil (herring, salmon, mackerel, sardines): Contain directly usable EPA and DHA. Eggs & meat (from pasture-raised animals or fed with Omega-3 enriched feed) can contain higher amounts of Omega-3. However, these sources are obviously not vegan and of animal origin.

How Much per Day?

The DGE recommends at least 250 mg EPA + DHA per day for adults. This corresponds to about two portions of fatty fish per week or 1–2 ml high-quality algae oil daily.

For ALA (plant-based Omega-3 source), the following reference values apply: Women: approx. 1.1 g per day. Men: approx. 1.6 g per day.

Practical quantity examples:

1 tablespoon hemp seed oil (10 ml) contains about 2 g ALA – thus well above the daily requirement.
20 g walnuts (a handful) provide approx. 2 g ALA.

What to Watch for with Supplements and Nutritional Supplements?

If you opt for fish, fish, or algae oil, it is worthwhile to pay attention to quality:

Purity & freedom from contaminants (heavy metals, dioxins)
Oxidation protection (vitamin E as antioxidant, watch TOTOX value)
Adequate dosage: Good products contain 250–500 mg EPA+DHA per capsule.

Tips for Everyday Life

Add nuts and seeds as a snack or to muesli.
Use oils like hemp seed oil or flaxseed oil cold (do not heat!). Here are some recipe ideas.
Include fish 1–2 times per week or alternatively take algae oil.
Consciously reduce sunflower or corn germ oil (rich in Omega-6).

Conclusion

Omega-3 and Omega-6 fatty acids are indispensable – the right ratio is crucial. While Omega-6 is usually abundant in our diet, we must actively ensure a good Omega-3 intake. This is easy with hemp seed oil, flaxseed oil, walnuts, or fatty fish. Those who rely on plant sources should also think of hemp – ideally organic quality. Just 1 tablespoon of hemp seed oil per day can make a big difference. This way, you support not only heart and brain but also your long-term health and well-being.

Sources:

Nature Aging volume 5, pages 376–385 (2025). Individual and additive effects of vitamin D, omega-3 and exercise on DNA methylation clocks of biological aging in older adults from the DO-HEALTH trial. Heike A. Bischoff-Ferrari et al.
German Nutrition Society (DGE)
Vegan Society Austria