You get enough sleep, you are not working more than usual, and yet this fatigue will not go away. It has set in, become normal, and is beginning to affect your daily life. Before accepting that you have to live with it, it is worth looking for a metabolic cause - particularly deficiencies.
Understanding chronic fatigue
“Normal” fatigue goes away with rest. Chronic fatigue, on the other hand, persists despite adequate sleep. It can take different forms: physical fatigue (difficulty exerting yourself), mental fatigue (brain fog, difficulty concentrating), or a lasting drop in motivation.
Its causes are numerous: prolonged stress, a demanding lifestyle, a diet lacking micronutrients, but also - very frequently - deficiencies in specific vitamins and minerals. These deficiencies are often invisible to the naked eye but have a real impact on cellular and nervous system function.
The most common deficiencies behind fatigue
Iron deficiency is the most common, particularly among women of childbearing age. Iron is the central component of hemoglobin, which carries oxygen throughout the body. Iron deficiency reduces the supply of oxygen to cells, causing significant physical fatigue, dizziness, and pale complexion.
Vitamin D deficiency is common among French people in winter. It plays a key role in the functioning of the immune and nervous systems. A lack of it is associated with widespread fatigue, low mood, and increased susceptibility to infections.
Magnesium is involved in cellular energy production (ATP). A deficiency causes nervous fatigue, muscle tension, and difficulty sleeping deeply.
B vitamins (B1, B2, B3, B5, B6, B9, B12) contribute to energy production, nerve signal transmission, and cell renewal. B12 in particular is often insufficient in people following a vegetarian or vegan diet.
Rhodiola (Rhodiola rosea) is not strictly speaking a nutrient, but an adaptogenic plant that helps the body better manage fatigue related to overwork. It helps reduce nervous fatigue associated with excessive mental strain.
How can you identify deficiencies?
The only way to confirm a deficiency is through a blood test. A panel including a complete blood count (for iron), 25-OH vitamin D levels, and red blood cell magnesium will give you an accurate picture. Talk to your doctor about it.
In the meantime, if you suffer from persistent fatigue despite a healthy lifestyle, broad-spectrum supplementation at physiological doses may be an illuminating first step.
Epycure's solution for getting your energy back
The Epycure Multivitamin+ Course (also known as “Essential Anti-Fatigue”) was designed to address all forms of fatigue by providing the 15 essential active ingredients the body may lack. Its key ingredient is rhodiola (Rhodiola rosea), which helps reduce nervous fatigue associated with excessive mental strain.
The complete formula combines:
- Iron + Vitamin C - iron contributes to normal oxygen transport and helps reduce fatigue; vitamin C improves its absorption and also helps reduce fatigue
- Magnesium - helps maintain normal psychological function and helps reduce fatigue
- Vitamins B1, B2, B3, B5, B6, B9, B12 - contribute to the functioning of the nervous system and normal psychological function
- Vitamin D3 - 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
- Spirulina - a natural source of protein, plant-based iron, and vitamins
The formula is suitable for vegetarians and vegans (lichen-derived vitamin D3, active vitamin B12, spirulina), made in France in an AFNOR HACCP+ certified laboratory, and contains 81.4% naturally derived ingredients.
Timeline of effects: from day 15, renewed energy and motivation. By day 30, reduced physical fatigue and better concentration. By day 90, improved mental well-being and a stronger immune system.
Lab'Epycure results (34 volunteers, 3 months): 1 in 2 people feel less overworked after just 30 days, 97% feel in better physical and mental shape, 97% notice an improvement in their mood.
Discover the Multivitamin+ Course →
In summary
Persistent fatigue is rarely inevitable. In many cases, it’s caused by deficiencies that can be identified and corrected. A medical checkup, a diet richer in micronutrients, and well-targeted supplementation can completely transform your day-to-day energy levels. Fatigue isn’t your natural state. You can overcome it.
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