Introduction
During weight loss, many people reduce carbohydrate intake, unknowingly forcing their bodies to derive energy from proteins.
Is this a good solution?
In this article, I will explain why energy from proteins is not optimal, why it’s essential to focus on proper hydration and protein intake, and which foods support health and weight loss.
I will skip the topic of supplementation.
1. What is Catabolism and Why Should It Be Avoided?
Definition of Catabolism
Catabolism is a metabolic process in which the body breaks down nutrients (e.g., proteins, fats) into smaller molecules to produce energy.
Humorously, though not far from reality, this process can be likened to “self-cannibalism.”
In the context of weight loss, excessive catabolism means:
- Muscle breakdown: The body starts “eating” muscle tissue to provide energy.
- Loss of strength and endurance: Reduced muscle mass leads to weakness.
- Slowed metabolism: Muscles are metabolically active*, so losing them lowers the body’s calorie-burning capacity.
*Metabolically active – muscles are responsible for burning calories. The greater your muscle mass or the higher your muscle-to-fat ratio, the faster your body can burn calories, leading to more efficient weight loss.
2. Why Is Energy from Proteins Not Optimal?
Proteins are primarily building materials, and using them as fuel:
- Strains the body: Breaking down proteins produces nitrogen, which must be excreted by the kidneys.
- Is energetically inefficient: The process of converting proteins into energy is complex and time-consuming.
- Leads to muscle loss: Without sufficient dietary protein, the body begins breaking down its own muscle tissue.
3. Focus on Hydration Instead of Obsessing Over Weight Loss
Proper hydration is crucial during carbohydrate restriction and weight loss:
- Water supports metabolism: Even slight dehydration can slow metabolism by 2-3%.
- Improves recovery: Water transports nutrients to cells, aiding muscle recovery.
- Reduces hunger: We often mistake thirst for hunger.
Practical hydration tips:
- Drink at least 2-3 liters of water daily, and more during intense training or if you work in conditions with higher water loss (e.g., swimming pools, factories, hot environments) – up to 5 liters.
- Enrich your water with electrolytes (sodium, potassium, magnesium) – add a pinch of Himalayan salt or drink broth.
- Avoid sugary drinks, which spike blood sugar levels.
Important: Hydration should be regular, meaning drink small amounts frequently rather than large quantities all at once.
4. Protein Intake – How to Protect Muscles During Weight Loss
Adequate protein intake is key to preventing catabolism during weight loss. Recommended amounts:
- 1.6-2.2 g of protein per kilogram of body weight
- 1.6-1.8 g – for those losing weight
- 1.8-2.2 g – for those training intensively
- 1.4-1.6 g – for those leading less active lifestyles
- Slightly higher intake may be necessary with very low carbohydrate consumption.
Protein-rich foods:
- Meat: Chicken, turkey, beef.
- Fish: Salmon, cod, mackerel.
- Dairy: Greek yogurt, cottage cheese, mozzarella.
- Eggs: A source of complete protein.
- Legumes: Lentils, chickpeas.
- High-protein plants: Tofu, tempeh, seitan.
Example of a high-protein meal:
Grilled chicken breast (150 g), steamed broccoli, buckwheat (50 g).
5. Foods by Glycemic Index (GI)
Why does the glycemic index (GI) matter?
The pancreas plays a key role in regulating blood sugar levels by producing insulin, a hormone that allows glucose to enter cells. However, consuming too many high-GI foods causes rapid blood sugar spikes, forcing the pancreas to work overtime.
In the long term, this can lead to:
- Insulin resistance: Cells stop responding to insulin, making it harder to control blood sugar.
- Weight gain: Excess sugar is stored as fat.
- Increased risk of metabolic diseases: Including type 2 diabetes.
Low GI (0-55) – Prefer
- Vegetables: Broccoli, zucchini, spinach, bell peppers.
- Fruits: Berries, grapefruit, strawberries.
- Legumes: Lentils, beans, chickpeas.
- Grains: Buckwheat, quinoa.
- Nuts and seeds: Almonds, flaxseeds.
Medium GI (56-69) – Limit
- Sweet potatoes.
- Basmati rice.
- Whole-grain bread.
- Corn.
- Ripe bananas.
High GI (70+) – Avoid
- White rice.
- Mashed potatoes.
- White bread.
- Candy, milk chocolate.
- Sugary drinks.
6. Practical Tips for Weight Loss Without Losing Muscle
- Meal regularity: Include protein in every meal to support muscle recovery.
- Strength training: Even light workouts help maintain muscle mass.
- Supplement with creatine: Supports strength and recovery during a calorie deficit.
- Monitor body composition: Weight loss should come from fat, not muscle.
7. Sample Daily Plan Including Protein and Hydration
Breakfast:
- Scrambled eggs (3-5) with spinach, avocado, and chia seeds.
- Green tea.
Lunch:
- Baked salmon (150 g), buckwheat (50 g), steamed broccoli with olive oil.
- Glass of water with lemon.
Dinner:
- Grilled chicken (150 g), chickpeas (100 g), salad with bell peppers, cucumber, and arugula.
- Water with Himalayan salt.
Snacks:
- Natural yogurt with berries.
- A handful of walnuts.
8. Summary
Focusing on hydration and proper protein intake is key to successful weight loss. Energy from proteins should only be a backup option – prioritize healthy fats and low-GI foods as your main energy sources. Regular body composition monitoring and a balanced diet will help you achieve your health goals without losing muscle mass.
A Personal Note
I know that many people dislike weighing their food and counting every calorie. I’m one of them.
Understandably, such an approach often borders on obsession and can lead to unnecessary stress. Weight loss should not be a torment or a source of frustration. Instead, it should be a harmonious process requiring calm and sound judgment.
The key lies in gradual and logical weight reduction while maintaining joy in life and addressing your needs.
Excessive discipline or obsessive control over diet can negatively impact self-esteem and diminish motivation. That’s why, instead of striving for perfection, it’s better to aim for sustainable habit changes that allow you to reach your goals without unnecessary sacrifices.
