Expert in Nutrition & Low Energy | Claire Russell Nutritional Therapist

ONLINE, Newcastle West, LIMERICK, Youghal, CORK, Ireland


Feeling Tired and Sluggish? The Krebs Cycle & Your Energy Production Explained

Are you feeling like you’re constantly running on fumes? You are not alone. Many people struggle with low energy levels, even when they seem to be eating enough. But what if the problem isn’t just about the quantity of food, but the quality and how your body utilises it? Understanding the Krebs cycle, the cellular pathway responsible for energy production, may also shed some light on why you might be feeling drained, and how to optimise your diet and lifestyle for sustained energy.

The Powerhouse of Your Cells:

Imagine your body as a bustling city, each cell a tiny inhabitant buzzing with activity. All this activity requires energy, and that’s where the Krebs cycle comes in. This intricate biochemical pathway, happening inside the mitochondria (the “powerhouses” of the cells in your body), converts the energy from food (measured in calories) into a form your cells can use: adenosine triphosphate (ATP).

Fuelling Your Internal Fire:

The macronutrients we consume – carbohydrates, fats, and protein – provide the fuel for the Krebs cycle. Each plays a different role:

  • Carbohydrates: Think of these as the kindling for your cellular fire. Carbohydrates provide a quick burst of energy, readily broken down into glucose and funneled into the Krebs cycle. The quick-burning fuel provides a rapid energy boost like kindling on a fire. Think fresh fruits, good whole grains, and vegetables.

  • Fats: These are the logs that keep the fire burning. They provide sustained energy over a longer period, offering a more stable fuel source. The slow-burning fuel of essential Fats, offers sustained energy over time, like a log on a fire. Opt for healthy fats like nuts, seeds, avocados, and oily fish.

  • Protein: While not directly used for energy but crucial for building and repairing tissues. Protein can be converted into glucose if needed. Its primary function lies in building and repairing tissues. Choose lean protein sources like chicken, fish, beans, and lentils.

Beyond the Basics:

While the Krebs cycle might be humming along, feeling energized isn’t just about having enough fuel. Micronutrients like magnesium and B vitamins are crucial co-factors, like the sparks that ignite the fire. Highly processed foods, often lacking in these micronutrients, provide “empty calories” that don’t support optimal energy production.

The Missing Piece: Mitochondrial Health:

Our mitochondria are more than just energy factories; they’re also dynamic organelles that respond to various factors, including stress, sleep, and exercise. Chronically high stress, poor sleep, and a sedentary lifestyle can negatively impact mitochondrial function, leading to decreased energy production.

Unlocking Your Energy Potential:

So, how can you optimise your energy levels by supporting the Krebs cycle and mitochondrial health?

Here are some key strategies:

  • Nourish your body with whole, unprocessed foods: Prioritize fruits, vegetables, whole grains, lean protein, and healthy fats. These foods provide a rich blend of macro- and micronutrients, fuelling your cells effectively.

  • Limit processed foods and sugary drinks: These offer quick energy spikes followed by crashes, disrupting your energy balance and leaving you feeling depleted.

  • Manage stress: Chronic stress depletes your body’s resources, including your energy reserves. Practice relaxation techniques such as meditation, breathwork or yoga stretching to manage stress effectively. I will give you personalised appropriate help with this.

  • Prioritize sleep: When you sleep, your body repairs and rejuvenates, including your mitochondria. Aim for 7-8 hours of quality sleep each night.

  • Move your body: Regular exercise improves mitochondrial function and boosts overall energy levels. Find activities, dance, exercise or stretching that you enjoy and incorporate them into your daily and weekly routine.

If you’re struggling with persistent low energy, despite making healthy lifestyle changes, consider seeking professional guidance from Claire Russell Therapy, Nutritionist and Clinical Medical Hypnotherapist.

Claire Russell Therapy offers a comprehensive approach to understanding and addressing energy imbalances. Using personalised nutrition plans, counselling/psychotherapy or stress management techniques, and/or mind coaching, RTT, or hypnotherapy. I am excited to help you optimise your Krebs cycle, your health, unlock your energy potential, and live a vibrant, fulfilling life.

Remember, your body is an intricate machine, and the Krebs cycle is just one part of the equation. By taking a full and holistic approach and prioritising your overall well-being, you can fuel your body and mind for optimal energy and vitality.


Beyond this Nutritional Therapy Blog:

Feeling persistently low on energy despite these efforts? Seeking professional guidance can be invaluable. As a registered qualified nutritionist, Claire Russell Therapy, and Nutritional Therapist, I can help you create your personalised plan to optimise your diet and lifestyle for optimal energy and overall well-being. I can also explore potential underlying health conditions, past traumas, negative thought systems and beliefs, and any other factors that might be contributing to your stress or fatigue.

You deserve to feel energized and vibrant. By understanding the Krebs cycle and taking steps to support it, along with Nutritional Therapy and Counselling /Psychotherapy you can unlock your Mind and Body’s natural energy potential and live your life to the fullest.

Ready to take control of your energy levels?

Contact me today for your personalised Nutritional therapy, Hypnotherapy or Counselling Consultation. Let’s start your health journey towards a more energised and happier you!

Claire Russell Therapy



Contact Claire Today to Book your appointment or Call to discuss your individual needs

Phone: 087 716 88 44


Additional Resources:

Krebs Cycle and Cellular Energy Production:

Micronutrients and Energy Metabolism:

  • The American Journal of Clinical Nutrition: [< URL removed>] (Review: Micronutrients and Energy Metabolism)
  • Nutrients: [URL removed] (The Role of Magnesium in Mitochondrial Function and Bioenergetics)
  • The American Journal of Clinical Nutrition: [ URL removed>] (B Vitamins and Energy Metabolism)

Highly Processed Foods and Energy Balance:

  • The American Journal of Clinical Nutrition: [< URL removed>] (Ultra-Processed Foods and Health Outcomes: A Review)
  • Public Health Nutrition: [< URL removed>] (Processed Food Consumption and Dietary Energy Density: Associations with Overweight and Obesity)
  • The Lancet: [<URL removed>] (Ultra-Processed Foods and Health Risks: A Systematic Review and Meta-Analysis)

Mitochondrial Health and Energy Production:

Micronutrients and Energy Metabolism:

Processed Foods and Energy:

Disclaimer: This blog post is for informational purposes only and should not be construed as medical advice from Claire Russell Therapy. Please consult Registered Nutritionist and Counsellor Claire Russell directly or another qualified registered Nutritional Therapist or professional. It is necessary to obtain personalised help for your individual specific health issues, dietary needs, food and relevant past health issues with any relevant emotional or mental life history.