Logo Bruna Barbosa

Discover the Causes of Constant Fatigue and How to Regain Your Energy
Detox & Reeducation

Discover the Causes of Constant Fatigue and How to Regain Your Energy

Bruna Barbosa
November 2, 2025
4 min read
36 views
See also: #guthealth, #weightloss-and-satiety, #detox-and-reeducation, #functional-nutrition Feeling Tired All the Time? Find Out What Might Be Causing This Constant Fatigue Feeling tired all the time...
Find Out What Might Be Causing This Constant Fatigue

Feeling tired all the time and lacking the energy to perform daily activities can be more than just simple tiredness. This constant fatigue can have several causes, and often, it's a sign that something in your body isn't working as it should. Below, we'll explore some of the main causes of constant fatigue and what can be done to improve your energy levels.

1️⃣ Dysregulated Thyroid Hormones 🌟
One of the most common causes of constant fatigue is thyroid dysfunction. The thyroid is a fundamental gland for energy metabolism, as it regulates the production of hormones such as T3 and T4, responsible for energy and disposition. When these hormones are dysregulated, especially in the case of hypothyroidism, a person may feel excessive tiredness and lack of energy. It's important to have regular checkups to monitor thyroid health and understand if this dysfunction is linked to constant fatigue.

2️⃣ Nutritional Deficiencies 🥗
A deficiency in essential nutrients can also be behind constant fatigue. B vitamins, vitamin D, iron, and magnesium are fundamental for energy production and the proper functioning of the body. A lack of these nutrients can cause weakness, tiredness, and decreased energy. Maintaining a balanced diet, rich in vegetables, fruits, and lean proteins, can help address these deficiencies and increase your energy levels, combating constant fatigue.

3️⃣ Elevated Cortisol 💆
Stress is another factor that can contribute to extreme tiredness and constant fatigue. The hormone cortisol, released in response to stress, can become elevated in situations of chronic stress, impairing sleep quality and energy production. Increased cortisol affects hormonal balance and can lead to a feeling of constant exhaustion. Relaxation techniques, such as meditation, yoga, and physical activity, are effective in reducing stress and controlling cortisol levels, helping to prevent constant fatigue.

Practical tip:

Include relaxation activities in your daily routine to help control stress and maintain healthy cortisol levels.

4️⃣ Altered Blood Glucose and Insulin Levels 🍞
Unregulated blood glucose and insulin levels can directly affect energy production and contribute to constant fatigue. Glucose is the body's main source of energy, and when there are problems with carbohydrate metabolism, such as in the case of insulin resistance or diabetes, glucose entry into cells is impaired. This results in extreme tiredness and fatigue. It is essential to monitor blood glucose levels and follow an appropriate diet to control these parameters, avoiding constant fatigue.

5️⃣ Non-Celiac Gluten Sensitivity and Other Food Intolerances 🍞
Conditions such as non-celiac gluten sensitivity, histamine intolerance, or nickel allergy can generate inflammation in the body, affecting energy production and contributing to constant fatigue. These low-grade inflammatory processes can lead to fatigue and a feeling of exhaustion. Identifying these sensitivities and adjusting your diet can be an effective way to reduce inflammation and improve your mood, relieving constant fatigue.

Practical tip: Keep a food diary to record how your body reacts to different foods and identify possible intolerances.

Conclusion: Constantly feeling low on energy can be frustrating and affect your quality of life. If you've been feeling this way, it's time to investigate the cause of your constant fatigue. There are several conditions, such as hormonal dysfunctions, nutritional deficiencies, and food intolerances, that can contribute to this feeling of constant tiredness. Don't ignore these signs, as proper treatment can make all the difference to your well-being.

Bruna Barbosa
Nutritionist – CRN-DF 16963

Specializing in Functional Nutrition, Phytotherapy, and Digestive Health, Dr. Bruna helps people understand their symptoms and transform their health starting from the gut, based on scientific evidence, empathy, and clinical practice.

With a strong focus on evidence-based nutritional education, Bruna produces accessible and well-founded content to guide more conscious, safe, and sustainable choices. Maintaining her commitment to professional ethics, clarity, and scientific excellence, she promotes real health in a personalized and responsible way.