“Those who take medicine but neglect their diet waste the skills of their doctors.” Chinese proverb
Our diet is far more than a simple source of energy: it is linked to many areas of how we feel, including concentration, mental balance, sleep, pain perception, inflammatory processes and general wellbeing. At the centre of these many interactions sits a control system in our body that has received little attention so far: the endocannabinoid system (ECS). This network of receptors and messenger substances acts as an internal balancing system and is involved in regulating many biological processes. Recent research suggests that certain foods and plant compounds can interact with the ECS in specific ways. What this means for our wellbeing is currently the subject of intensive research.
The endocannabinoid system: a little-known control centre
The ECS has three core components: the cannabinoid receptors (mainly CB-1 and CB-2, though there may be others), the body's own ligands (endocannabinoids) and the enzymes responsible for producing and breaking them down. It is a key system of the body that maintains homeostasis, a healthy internal balance, when outside factors change, for example in stressful situations. The ECS is remarkably versatile and is involved in many functions, including stress responses, pain perception, mood and wellbeing, sleep, appetite and energy balance, neural development and protection, as well as immune responses and much more.
One special feature of the ECS is that it works “on demand”: endocannabinoids are produced when needed and act only briefly. This makes the ECS particularly responsive to outside influences such as diet, exercise or stress.
Omega-3 and omega-6 fatty acids: the building blocks of the ECS
Polyunsaturated fatty acids, especially omega-6 and omega-3, provide the raw material for making endocannabinoids. Omega-6 fatty acids, above all arachidonic acid, are direct precursors of the endocannabinoids anandamide and 2-AG. A diet rich in omega-6 therefore promotes the production of these endocannabinoids. However, too much omega-6 (a ratio of up to 16:1 against omega-3 is common in Western diets) can lead to overactivation of the ECS. Researchers link this to inflammation, excess weight and metabolic disorders.
Omega-3 fatty acids, found for example in oily sea fish, hemp, linseed, walnuts, pumpkin seeds, rapeseed oil and chia seeds, act as their counterpart: omega-3 promotes the formation of endocannabinoid-like molecules such as DHEA, which are being studied for their role in inflammation and could contribute to a more balanced ECS. A balanced ratio of omega-6 to omega-3, ideally 4:1 or even lower, is considered important to support the ECS as well as possible.
You can also improve the ratio by cutting back on foods high in omega-6. These include highly processed foods, ready meals, sunflower oil, safflower oil and large amounts of meat and sausages.
Hemp foods: more than just a trend
Hemp products such as hemp seeds, hemp oil and hemp protein have become true superfoods in recent years, and not without reason. Hemp seeds contain not only high-quality plant protein but also an almost ideal omega-6 to omega-3 ratio of about 3:1. That makes them a good basis for supporting the ECS through your diet.
But hemp can do more: besides its valuable fatty acids, the plant also contains traces of phytocannabinoids such as cannabidiolic acid (CBDa). In the hemp plant, cannabidiol (CBD) is initially present only as CBDa. Only when heated (for example during drying, cooking or extraction) is CBDa converted into CBD, a process called decarboxylation. Unlike THC, neither CBDa nor CBD is strongly psychoactive, and CBD may even weaken the psychoactive effect of THC. CBDa and CBD do differ in structure, bioavailability and effect, though: CBDa is absorbed better by the body and interacts with the endocannabinoid system differently from CBD. While CBD has been studied more thoroughly, early preclinical studies are looking at whether CBDa has its own, in some cases stronger effects, for example in connection with inflammation or nausea.
There are also indications that certain aromatic terpenes such as beta-caryophyllene or limonene, and other secondary plant compounds from hemp, interact with the ECS and can modulate how it works, for example by increasing the availability of the body's own endocannabinoids or by influencing inflammation-related signalling pathways.
Hemp is easy to fit into everyday life: two to three tablespoons of hemp seeds in your muesli, a spoonful of hemp oil on your salad or a spoonful of hemp protein in your smoothie are a simple contribution to a balanced diet. When making hemp tea, pour hot but not boiling water over the leaves so that as many of the terpenes as possible are preserved.
Plant power for the ECS: pepper, echinacea, maca and more
Besides hemp or cannabis, there are other plants that can modulate the ECS in specific ways. Black pepper, coneflower, turmeric, maca and kava kava are particularly interesting here.
Black pepper (beta-caryophyllene)
Beta-caryophyllene is a terpene found in black pepper, oregano, rosemary and hemp. Preclinical studies suggest that it interacts with the endocannabinoid system; animal models have looked at its effects on inflammation and pain processes. These preliminary findings, however, come mainly from experimental lab settings, and clinical studies in humans are still lacking. The same largely applies to the foods described below.
Coneflower (echinacea)
Echinacea contains so-called N-acylethanolamines, which are structurally similar to the body's own endocannabinoids. Preclinical studies suggest that these plant compounds interact with CB2 receptors of the endocannabinoid system and can influence inflammation-related signalling pathways in cell and animal models. Effects on immune responses, such as the inhibition of certain inflammatory messengers, were observed. Whether and how these results apply to humans is the subject of current research.
Turmeric (curcumin)
According to preclinical studies, curcumin, the bright yellow pigment from turmeric root, inhibits the enzyme FAAH, which normally breaks down the endocannabinoid anandamide. This can raise anandamide levels. What role this plays for mood, pain perception and inflammatory processes is still being studied. Combining it with black pepper (piperine) increases the bioavailability of curcumin many times over.
Maca (Lepidium meyenii)
This Peruvian root contains N-alkylamides that act as FAAH inhibitors and slow down the breakdown of anandamide. This raises the concentration of anandamide, the so-called “bliss molecule”, in the body. Whether this affects stress or the protection of nerve cells is currently being researched. Preclinical studies also point to a synergistic effect with CBD.
Kava kava (Piper methysticum)
Kava kava is a traditional plant from the South Pacific. Its root contains kavalactones such as yangonin, which act on the CB1 receptor. Studies are looking at whether this is connected to the relaxing effects attributed to the plant. In certain cultures, kava extracts are traditionally used for relaxation. Clinical research on this is still ongoing.
Practical nutrition tips for a strong ECS
If you want to support your endocannabinoid system in a targeted way, focus on a balanced, mainly plant-based diet. Especially recommended:
• Foods rich in omega-3: oily fish (e.g. salmon, mackerel), linseed, chia seeds, walnuts, hemp seeds and hemp oil
• Less omega-6: avoid sunflower oil and use olive oil or rapeseed oil instead.
• Plant compounds: turmeric (ideally combined with black pepper), hemp products, herbs such as oregano and rosemary, grapes
Regular exercise, enough sleep and stress management also support the healthy functioning of the ECS.
Conclusion
Science is showing more and more clearly that the endocannabinoid system plays an important role in our wellbeing. With a balanced diet rich in omega-3 fatty acids that makes targeted use of plant compounds such as curcumin, beta-caryophyllene and kavalactones, we can actively support our ECS. Cannabis plays a special role here: the plant provides not only valuable fatty acids but also secondary plant compounds that modulate the ECS naturally.
We still have a lot to learn, but one thing is clear: the future of nutrition is personalised, plant-based and keeps the endocannabinoid system in view.
Note: This article is for general information only and does not replace medical advice. The foods and plant compounds mentioned are not medicines. If you have health problems, please see a doctor.
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