Why eat protein?

High-protein diets have surged in popularity in recent years, particularly among those looking to lose weight or enhance their body composition. These diets focus on the consumption of protein-rich foods such as lean meats, fish, eggs, dairy products, legumes, and nuts. But what real benefits do high-protein diets offer, and how can they be healthily incorporated into our lifestyle? In this article, we will explore the advantages and considerations of high-protein diets.

What are High-Protein Diets?

A high-protein diet is one that includes a higher proportion of protein compared to carbohydrates and fats. The exact amount can vary, but it is generally considered high in protein if at least 20% of daily calories come from protein.

Benefits of High-Protein Diets

1. Satiety and Appetite Control

Proteins have a high satiety power. This means they can help reduce hunger and, therefore, total caloric intake. A study published in the “American Journal of Clinical Nutrition” found that individuals consuming higher amounts of protein felt fuller and tended to eat less in the next meal.

2. Muscle Maintenance and Growth

Proteins are essential for the maintenance and growth of muscle mass. They are the building blocks of muscles, and adequate intake is crucial, especially for those engaging in resistance or strength training.

3. Metabolism and Weight Loss

High-protein diets can boost metabolism and the number of calories burned at rest. This is due to the thermic effect of food (TEF), which is the energy used to digest, absorb, and metabolize nutrients. Proteins have a higher TEF compared to carbohydrates and fats.

4. Improved Body Composition

Combining a high-protein diet with exercise can improve body composition, increasing muscle mass and decreasing body fat. This is particularly beneficial for preventing muscle loss during weight loss.

5. Bone Health Benefits

Contrary to the popular belief that high protein intake can harm bones, some research suggests it may have beneficial effects on bone health. This is especially important for postmenopausal women and older individuals.

Considerations When Following a High-Protein Diet

1. Protein Quality

Focusing on the quality of the proteins consumed is important. Opting for lean and varied sources, including both animal and plant-based, can provide a complete profile of essential amino acids.

2. Kidney Function

While high-protein diets are generally safe for individuals with healthy kidneys, those with pre-existing kidney disease should exercise caution and consult with a healthcare professional before increasing their protein intake.

3. Nutritional Balance

It’s crucial not to neglect other essential food groups. Fruits, vegetables, healthy fats, and complex carbohydrates are important for a balanced diet and should not be displaced by an excess of protein.

4. Hydration

Protein metabolism produces nitrogen, which is excreted in the urine as urea. Therefore, it’s important to increase fluid intake to help the kidneys process and eliminate urea efficiently.


High-protein diets can offer several benefits, from improving satiety to supporting metabolism and body composition. However, as with any dietary plan, it’s essential to approach it in a balanced and mindful way. The key is moderation and ensuring that the diet is varied and nutritious, covering all the body’s needs. Before making significant changes to your diet, it’s advisable to consult with a nutritionist or doctor, especially if you have pre-existing health conditions.


1. Satiety and Appetite Control

  • “Dietary induced thermogenesis” by Acheson KJ et al. (2011) American Journal of Clinical Nutrition. This study found that a high-protein diet increased satiety and reduced hunger compared to a high-carbohydrate diet.

2. Muscle Maintenance and Growth

  • “The role of dietary protein in controlling muscle mass wasting” by Paddon-Jones D et al. (2008) Current Opinion in Clinical Nutrition and Metabolic Care: https://pubmed.ncbi.nlm.nih.gov/18978832 This review highlights the importance of protein intake for muscle maintenance and growth, particularly during exercise.

3. Metabolism and Weight Loss

  • “Thermic effect of food and dietary components” by Acheson KJ et al. (2010) American Journal of Physiology-Endocrinology and Metabolism. This study demonstrates that protein has a higher thermic effect of food (TEF) compared to carbohydrates and fats, leading to increased calorie burning at rest.

4. Improved Body Composition

  • “Weight loss and maintenance in overweight and obese subjects following a protein- or carbohydrate-based low-calorie diet” by Layman DK et al. (2003) Journal of the American College of Nutrition. This research showed that a high-protein diet with exercise resulted in greater muscle mass gain and fat loss compared to a high-carbohydrate diet.

5. Bone Health Benefits

  • “Dietary protein intake and bone health” by Bonjour JP (2011) Current Opinion in Clinical Nutrition and Metabolic Care: https://pubmed.ncbi.nlm.nih.gov/21415504 This review discusses the potential benefits of protein intake for bone health, particularly in older adults.

TrueProtein.app takes your health and personal care very seriously. That is why we want to make it very clear that you should not implement any diet or exercise without first consulting with a health professional. This page is for informational purposes only, and does not mean that we are offering you medical advice, treatment or advice.

You should consult a health professional before trying any of the methods and products mentioned here. At no time does it recommend taking pills, infusions, supplements, eating certain types of foods, vegetables, exercising or dieting to lose weight without prior consent, approval or medical evaluation by a professional doctor or person responsible for your health. TrueProtein.app is not responsible for any short or long-term adverse effects that the products, diets, exercises, methods, offers and recommendations mentioned here on this site may cause you.

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