Personne fatigueé cherchant des solutions naturelles pour retrouver de l'énergie

CORE-2026 Chronic fatigue: signs, causes, and natural solutions for regaining energy

Paul-Etienne Jacob PAUL-ETIENNE JACOB

4min reading time

You get enough sleep, you eat more or less properly, and yet the chronic fatigue is there, persistent and impossible to shake. It settles into your body and mind, slows concentration, dulls motivation, and makes daily life more difficult. This is not a question of willpower. It is often a signal that something deeper needs to be corrected.

Understanding chronic fatigue: it’s not all in your head

Chronic fatigue differs from ordinary tiredness through its persistence and lack of genuine recovery. Two days at the weekend do not change much. It can take different forms:

  • Physical fatigue: heavy body, cottony limbs, effort that feels twice as difficult
  • Mental fatigue: fluctuating concentration, brain fog, difficulty making decisions
  • Emotional fatigue: irritability, heightened sensitivity, exhaustion in the face of social interactions

The causes are often multiple and intertwined: nutritional deficiencies (iron, B vitamins, vitamin D, magnesium), overwork, chronic stress, nervous system dysregulation, or a lifestyle that is not conducive to recovery. In all cases, comprehensive care is more effective than relying on a single isolated approach.

Deficiencies to investigate as a priority

Certain nutritional deficiencies are particularly common in France and directly associated with fatigue:

  • Iron: a central component of hemoglobin, it ensures the transport of oxygen throughout the body. Iron deficiency literally exhausts cells. Women of childbearing age are particularly at risk.
  • Vitamin D: nearly 80% of people in France have insufficient levels, particularly in autumn and winter. It plays an essential role in immune system function and overall energy levels.
  • Magnesium: more than 70% of the population does not reach the recommended intake. It contributes to normal psychological function and helps reduce fatigue.
  • B vitamins (B1, B2, B5, B6, B9, B12): essential for energy metabolism and the proper functioning of the nervous system.

A blood test can identify deficiencies and guide supplementation precisely.

Natural solutions for regaining energy

The first step: reassess your lifestyle habits. Sleep quality, a varied diet rich in micronutrients, regular moderate physical activity, and stress management: these pillars are non-negotiable.

Among plants, adaptogens stand out: rhodiola (Rhodiola rosea), in particular, is recognized for helping the body adapt better to periods of stress and prolonged exertion. It helps reduce nervous fatigue associated with excessive mental strain and contributes to emotional balance without a stimulating effect.

Spirulina, rich in protein, iron, and vitamin B12, is also an interesting ally for people following a vegetarian or vegan diet.

Choosing the right supplements for fatigue

A few decisive criteria:

  • Broad spectrum: since fatigue rarely has a single cause, a supplement that works on several fronts (physical, mental, and immune) is more suitable than isolated supplementation.
  • Clinical dosages: doses that are too low do not deliver the expected results. Choose formulas that provide at least 100% of the NRV for essential vitamins and minerals.
  • Active forms of vitamins: some vitamins are better absorbed in their active form (methylcobalamin B12, D3 rather than D2).
  • No problematic excipients: free from maltodextrin, magnesium stearate, and artificial colorings.

The Epycure solution for combating chronic fatigue

The Epycure Multivitamin+ Course was designed to address all forms of fatigue, with a synergy of 15 essential active ingredients formulated by the in-house R&D team.

Its star ingredient: rhodiola (Rhodiola rosea), an adaptogenic plant used for centuries that helps reduce nervous fatigue associated with excessive mental strain. It acts as a natural regulator by balancing cortisol levels and supporting endorphin production.

The formula also contains:

  • Iron: contributes to the normal transport of oxygen throughout the body and helps reduce fatigue (100% of the NRV)
  • Vitamin C: contributes to reducing fatigue and improves iron absorption (80 mg)
  • Magnesium: helps maintain normal psychological function and reduce fatigue
  • Vitamins B1, B2, B3, B5, B6, B9, B12: contribute to nervous system function and normal psychological function, and support normal energy metabolism
  • Vitamin D3 (lichen-based, plant-derived): contributes to the normal functioning of the immune system
  • Zinc and selenium: contribute to the normal functioning of the immune system and help protect cells from oxidative stress

Results validated by Lab'Epycure: 97% feel in better physical and mental shape, 97% feel that their mood has improved, and more than 1 in 2 feel less overwhelmed after just 30 days — based on 34 people after a 3-month course.

Formula free from maltodextrin and magnesium stearate, vegan, gluten-free, lactose-free, made in France in an AFNOR HACCP+-certified laboratory. Epycure is B Corp certified.

Dosage: 2 capsules per day, preferably in the morning. Recommended course: 3 months to achieve lasting effects on accumulated fatigue. For adults only (+18 years).

Discover the Multivitamin+ Course →

In summary

Chronic fatigue must be treated at its root, not on the surface. Identifying its causes, correcting deficiencies, supporting the nervous system with the right micronutrients and a clinically studied adaptogenic plant: this is the path toward restored, stable, and lasting energy. Your body will thank you.

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Paul-Etienne Jacob
PAUL-ETIENNE JACOB

CEO, Epycure