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Should I reduce carbs vs fats for cutting calories? 

Posted:    Author:  

Harry Whitmore, Medical Student

   Reviewed by:  

Dr. Stefan Petrov, MBBS

When aiming to lose weight, one of the most common questions is whether to reduce carbs vs fats for cutting calories. Both macronutrients play important roles in your diet, but when trying to create a calorie deficit, which one should you focus on reducing? Let’s explore the effects of cutting carbs versus cutting fats, and how each impacts your macro reduction and overall fat loss goals. 

The Role of Carbs vs Fats for Cutting Calories 

Carbs for Cutting Calories 

Carbohydrates are the body’s preferred energy source, especially for high intensity exercise. When cutting calories, reducing carbs for cutting can lead to quick initial weight loss, as the body uses stored glycogen (carbohydrate) along with water for energy. This can result in a rapid loss of water weight in the first few days. 

However, carbs are still essential for energy, especially if you’re engaging in intense workouts. If you drastically cut carbs, it could negatively impact your energy levels, making it harder to sustain exercise routines and potentially slowing down metabolism. 

Fats for Cutting Calories 

On the other hand, fats for cutting are a critical source of energy and are essential for hormone regulation, brain health, and overall well-being. When cutting fats, you’re reducing the most calorie dense macronutrient. Fat contains 9 calories per gram, compared to the 4 calories per gram found in both protein and carbohydrates. By reducing fats, you’re making a significant macro reduction in terms of calories, which can help create a calorie deficit for weight loss. 

However, cutting fats too much can lead to imbalances in hormone levels and may result in cravings or reduced satiety, making it harder to stick to your calorie target. 

Calorie Deficit: Finding the Right Balance 

The key to successful weight loss is creating a calorie deficit, where you consume fewer calories than you burn. Whether you reduce carbs vs fats for cutting calories depends on your lifestyle, goals, and how your body responds to each macronutrient. For many people, a balanced approach works best, where you moderate both carbs and fats while maintaining an adequate protein intake. 

Some people may benefit from reducing carbs, especially if they are looking to stabilise blood sugar or improve fat burning. Others may find reducing fats more sustainable, especially if they want to maintain a higher intake of nutrient dense carbs for energy. 

Conclusion 

When deciding whether to reduce carbs vs fats for cutting calories, it’s essential to consider your overall goals and how your body responds to each macronutrient. Both approaches can help you create a calorie deficit for fat loss, but balance is key. Experiment with different levels of macro reduction to find what works best for your body and lifestyle. 

Visit providers like Weightfall  for personal consultations and expert guidance on reducing carbs vs fats for cutting calories in a way that supports your calorie deficit and health goals. 

For a deeper dive into science, tracking methods, and practical tips, check out our complete guide to Macronutrients.  

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Written By Harry Whitmore, Medical Student
Dr. Stefan Petrov, MBBS
Reviewed By Dr. Stefan Petrov, MBBS

Dr. Stefan Petrov is a UK-trained physician with an MBBS and postgraduate certifications including Basic Life Support (BLS), Advanced Cardiac Life Support (ACLS), and the UK Medical Licensing Assessment (PLAB 1 & 2). He has hands-on experience in general medicine, surgery, anaesthesia, ophthalmology, and emergency care. Dr. Petrov has worked in both hospital wards and intensive care units, performing diagnostic and therapeutic procedures, and has contributed to medical education by creating patient-focused health content and teaching clinical skills to junior doctors.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy. 
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