Tag: Nutrition and fatigue

According to a study published in *Frontiers in Physiology*, prolonged calorie restriction significantly downregulates skeletal muscle function. This confirms that yes, not eating can cause muscle fatigue by depriving your body of essential energy and nutrients.

Globally, iron deficiency is one of the most widespread nutrient deficits, impacting over a quarter of the world's population and often causing profound tiredness. This common symptom can be a vital clue to understanding **what deficiency makes you tired** and signals the need for nutritional adjustments.