Nutrition and Energy Throughout the Day

Nutrition and Energy: Discover Why Fatigue Is Not Just About Physical Fitness

The sensation of fatigue during the day is a common symptom, even in individuals who maintain adequate levels of physical activity. Although often attributed to poor physical fitness or lack of sleep, nutrition and energy are directly linked, as dietary choices decisively influence the production and management of our body’s energy reserves.

Energy is not just about physical endurance, but also about concentration, mental alertness, and general functionality throughout the day. All these depend on how our body is nourished around the clock.

The most common dietary causes of fatigue:

• Unstable blood sugar levels: Skipping meals or consuming meals rich only in simple carbohydrates (e.g., sweets, white bread) leads to sharp spikes and crashes in blood sugar, causing drowsiness and exhaustion.

• Inadequate protein intake: Protein contributes to satiety, energy stability, and the proper function of muscles and the nervous system.

• Lack of essential micronutrients: Iron and B-complex vitamins are directly related to energy production. Even mild deficiencies can manifest as chronic fatigue.

• Dehydration: Even a slight reduction in body fluids can affect concentration and physical endurance.

What a proper diet for energy includes in detail:

CARBOHYDRATES

Dietary carbohydrates play a significant role in mood regulation, mental health, and cognitive performance. The intake of simple carbohydrates (e.g., sugar, white bread) is consistently linked to a decline in overall cognitive function, while the intake of complex carbohydrates (whole grains, legumes, vegetables) is linked to both short-term and long-term memory improvement and successful brain aging.

PROTEIN

Protein does not “give” us immediate energy like carbohydrates, but it plays a significant role in energy stability, muscle function, and recovery. Meals low in protein are often associated with more intense fatigue during the day.

Additionally, reduced skeletal muscle mass and function in adults has been linked to chronic conditions, poor quality of life, sarcopenia, increased risk of fractures, and frailty.

FATS

Fats are the most concentrated source of energy in our diet and are essential for the proper functioning of the nervous system, hormone synthesis, and cellular health maintenance. Although not used as immediate fuel for the brain, they contribute to energy stability and the reduction of energy fluctuations throughout the day.

The quality of fats is of particular importance. Monounsaturated and polyunsaturated fats (such as olive oil, nuts, fatty fish) have been correlated with better brain function, reduced fatigue, and improved cognitive performance. Furthermore, Omega-3 fatty acids appear to play a role in regulating inflammation and brain function, factors that indirectly affect energy levels and mental alertness. Conversely, high intake of saturated and trans fats appears to be related to increased feelings of fatigue and reduced metabolic flexibility.

Micronutrients

B-complex vitamins as well as iron participate in critical metabolic pathways related to energy production. Even mild deficiencies have been correlated with increased fatigue and reduced functionality. Iron is of particular importance, as its reduced availability in the body can lead to a feeling of fatigue even in the absence of anemia.

Hydration

Water is essential for life and is involved in almost all functions of the human body. Adequate hydration is often an underestimated factor affecting energy. It has been shown that even mild dehydration can burden concentration, mood, and the subjective feeling of fatigue. Systematic fluid intake during the day supports physical and mental performance. An adult needs approximately 2-2.5 liters of water per day, with the dosage fluctuating depending on their daily routine.

Conclusion

Maintaining adequate energy levels throughout the day does not depend on a single factor, but on the overall interaction of nutrition with the daily demands of the organism.

A balanced diet, adapted to the needs of each individual, that provides sufficient amounts of complex carbohydrates, fruits, vegetables, legumes, protein, and good fats, can substantially improve performance and overall corporate wellbeing.

The specialized approach of Workplace Physiocare

At Workplace Physiocare, we integrate nutritional science into our Dynamic Wellbeing Programme, a flexible framework of services that allows you to create your own personalized support model.

What the Wellbeing programme includes:

• Webinars & Mini-Seminars: Thematic units on wellbeing, nutrition, stress management, and boosting energy.

• Personalized Counseling: Guidance on nutrition and weight management issues, adapted to the needs of your employees.

How to integrate Wellbeing services into your company

The process to support your team’s health is immediate and simple. Follow the steps below:

1. Contact: Send us your request via email at info@workplace–physiocare.gr or fill out the contact form.
2. Initial Discussion: We schedule a brief call to understand your needs and your team’s profile.
3. Proposal & Implementation: We send you our personalized proposal for the Webinars or Counseling that suits your organization.

Contact us today and discover how proper nutritional guidance will upgrade wellbeing in your organization.

Blog written by Maro Zoe (Clinical Dietitian-Nutritionist)

References:

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2. Carbone, W., & Pasiakos, S. M. (2019). Dietary Protein and Muscle Mass: Translating science to application and health benefit. Nutrients, 11(5), 1136. https://doi.org/10.3390/nu11051136
3. Welty, K. (2022). Omega-3 fatty acids and cognitive function. Current Opinion in Lipidology, 34(1), 12–21. https:// doi.org/10.1097/mol.0000000000000862.
4. Cao, , Li, M., Han, L., Tayie, F., Yao, S., Huang, Z., Ai, P., Liu, Y., Hu, Y., & Xu, B. (2019). Dietary Fat Intake and Cognitive Function among Older Populations: A Systematic Review and Meta-Analysis. The Journal of Prevention of Alzheimer S Disease, 6(3), 204–211. https://doi.org/10.14283/jpad.2019.9
5. Kennedy, (2016). B Vitamins and the Brain: Mechanisms, Dose and Efficacy—A Review. Nutrients, 8(2), 68. https://doi.org/10.3390/nu8020068
6. Haas, D., & Brownlie, T. (2001). Iron deficiency and reduced work capacity: A critical review of the research to determine a causal relationship. Journal of Nutrition, 131(2), 676S-690S. https://doi.org/10.1093/jn/131.2.676s
7. Ganio, S., Armstrong, L. E., Casa, D. J., McDermott, B. P., Lee, E. C., Yamamoto, L. M., Marzano, S., Lopez, R. M., Jimenez, L., Bellego, L. L., Chevillotte, E., & Lieberman, H. R. (2011). Mild dehydration impairs cognitive performance and mood of men. British Journal of Nutrition, 106(10), 1535–1543. https://doi.org/10.1017/ s0007114511002005