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What is the link between fatty acids and hormonal balance?

Fatty acids and hormone balance: the little-known importance of optimal health

Hormonal balance is essential for maintaining optimal health. Hormones play a key role in many bodily functions, including growth, metabolism, reproduction, sleep, mood, and much more. However, what many people don’t realize is that fatty acids, which are essential components of our diet, play a crucial role in regulating our hormones. In this article, we explore the link between fatty acids and hormone balance, highlighting their importance for overall health.

Essential fatty acids

Fatty acids are lipid molecules found in dietary fats. They are classified into two main categories: saturated and unsaturated fatty acids.

Unsaturated fatty acids are divided into monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA). Some of these fatty acids are essential, meaning that the human body cannot produce them itself, so they must be obtained from the diet.

Two essential fatty acids deserve particular attention: linoleic acid (omega-6) and alpha-linolenic acid (omega-3). These fatty acids are the basis for the synthesis of long-chain fatty acids such as arachidonic acid, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which are crucial for hormone regulation.


What is the role of fatty acids in hormone balance ?

  • Inflammation and hormonal balance: Omega-6 and omega-3 fatty acids play a key role in regulating inflammation. The balance between these two types of fatty acids is essential, as an excess of omega-6 can promote chronic inflammation, which is linked to hormonal imbalances, notably insulin and sex hormones.
  • Sex hormones: Fatty acids are precursors in the synthesis of sex hormones such as estrogen and progesterone. An adequate intake of essential fatty acids is necessary to support the production and regulation of these hormones. Hormonal imbalances can lead to menstrual disorders, fertility problems and menopausal symptoms.
  • Stress and stress hormones: Fatty acids can also influence the stress response by modulating the production of the stress hormone cortisol. An imbalance in fatty acids can lead to an excessive stress response, which in turn can disrupt other hormones such as insulin and thyroid.
  • Thyroid hormones: Fatty acids are involved in the conversion of inactive thyroid hormones (T4) into active thyroid hormones (T3). Inadequate levels of fatty acids can interfere with this conversion, leading to thyroid problems.
  • Nervous system and appetite-related hormones: Omega-3 fatty acids, in particular, have an impact on the regulation of appetite-related hormones such as leptin and ghrelin. A proper balance of these fatty acids can help prevent overeating and maintain a healthy body weight.

The Two Types of Essential Fatty Acids

There are two main types of essential fatty acids that the body cannot produce on its own, and which must be supplied by the diet: omega-3 and omega-6 fatty acids.

1/ Omega-3 fatty acids: Omega-3 fatty acids, such as alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are known for their role in reducing inflammation and promoting heart health. They are also essential for hormone production.

Influence on hormones: Omega-3 fatty acids contribute to hormonal balance by regulating the production of eicosanoids, compounds derived from essential fatty acids that influence the body’s inflammatory responses. A proper balance between omega-3 and omega-6 is essential to maintain stable hormone levels.

2/ Omega-6 fatty acids: Omega-6 fatty acids, such as linoleic acid, are also essential for the body. They are involved in regulating blood pressure, inflammation and blood coagulation.

Influence on hormones: Omega-6s are necessary for hormone production, but an excess can lead to hormonal imbalance. This is often the case in Western diets, which are rich in omega-6 compared to omega-3, and can contribute to hormonal problems such as chronic inflammation.

The Balance Between Omega-3 and Omega-6

The key to maintaining optimal hormonal balance is to consume adequate amounts of omega-3 and omega-6 fatty acids, while avoiding excesses. A balanced ratio between these two types of fatty acids is essential. Ideally, we recommend aiming for a ratio of 1:1 or 2:1 (omega-6 : omega-3).

Unfortunately, many modern diets are unbalanced, with an excess of omega-6 over omega-3. This is often due to excessive consumption of omega-6-rich vegetable oils, such as corn and soybean oil, to the detriment of omega-3 sources, such as oily fish, chia nuts and flaxseed.

An imbalance between omega-6 and omega-3 can contribute to hormonal problems such as chronic inflammation, which is linked to many diseases, including heart disease, type 2 diabetes and obesity. In contrast, adequate omega-3 intake can help regulate inflammatory hormone levels, promoting a healthy hormonal balance.

Omega-3-rich foods

To maintain optimal hormonal balance, it’s essential to incorporate omega-3-rich foods into your diet. Here are some sources of omega-3 :

Oily fish such as salmon, mackerel and herring
Chia seeds
Flax seeds
Flaxseed oil


Fatty acids play a crucial role in hormone regulation and, consequently, in overall health. Maintaining a proper balance between omega-3 and omega-6 is essential to avoid hormonal imbalances and associated health problems. By incorporating omega-3-rich foods into your diet, you can help promote optimal hormonal balance and improve your overall well-being. It is also advisable to consult a healthcare professional or nutritionist for personalized advice on managing your hormonal balance through your diet.

Sources :

MiYé is a range dedicated to the female hormonal balance

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