Combien de protéine dois-je consommer par jour?

How much protein should I consume per day?

Protein plays a crucial role in our diet. They are essential for growth, tissue repair and proper functioning of the body. But how much protein should we really be eating each day? This article explores this question in depth, debunks common misconceptions, and offers practical advice for determining your protein needs.

What are Proteins?

Definition and Importance

Proteins are macromolecules composed of amino acids. They are the building blocks of our muscles, enzymes, hormones and many other vital elements. Without protein, our body would not be able to repair damaged tissues or grow new cells.

Protein Sources

Protein is found in a variety of foods, including meat, fish, eggs, dairy, legumes, nuts and seeds. Each of these sources offers unique benefits, which we'll explore in more detail later in this article.

Protein Requirements: An Overview

Daily Needs for an Average Person

For the average person, protein needs generally range between 0.8 and 1.0 grams per kilogram of body weight per day. However, these needs may increase depending on various factors which we will examine.

Factors Affecting Protein Requirements

Your age, activity level, health, and personal goals (like weight loss or muscle gain) all influence your protein needs. For example, athletes and the elderly may require more protein than average.

How to Calculate Your Protein Needs?

Weight-Based Calculation Methods

A simple method to determine your protein needs is to multiply your body weight in kilograms by 0.8 to 1.0 grams. For someone weighing 70 kg, this means consuming between 56 and 70 grams of protein per day.

Calculation Based on Activity Level

Very active people or athletes may need 1.2 to 2.0 grams of protein per kilogram of body weight. So, for a 70 kg athlete, this could mean consumption ranging from 84 to 140 grams per day.

Using Online Calculators

For those who prefer a more precise approach, many online calculators help determine your protein needs by taking into account several variables like age, gender, activity level and health goals.

Proteins for Different Phases of Life

Protein Requirements for Children and Adolescents

Growing children and adolescents have high protein requirements to support their development. They should consume between 1.0 and 1.5 grams per kilogram of body weight.

Protein Requirements for Adults

Adult protein needs are more stable, but may increase during times of stress, illness or pregnancy.

Protein Needs for Seniors

Older adults may require more protein to prevent age-related muscle loss. 1.2 to 1.5 grams of protein per kilogram of body weight is often recommended for seniors.

Proteins and Physical Activities

Protein Needs for Athletes

Athletes need more protein to repair muscles damaged during exercise and to stimulate muscle growth. They should aim for 1.2 to 2.0 grams of protein per kilogram of body weight.

Effects of Intense Exercise on Protein Needs

Intense exercise increases the need for protein to aid muscle recovery. Bodybuilders and elite athletes may require even higher intakes to support their training.

Are Protein Supplements Necessary?

Although many athletes use protein supplements, they are not always necessary if you are getting enough protein from your diet. However, they can be practical for those who have difficulty achieving their daily needs.

Protein and Health Goals

Protein and Weight Loss

A high protein intake may aid weight loss by increasing feelings of fullness and preserving muscle mass while dieting.

Protein and Muscle Gain

To gain muscle, sufficient protein intake is crucial. In addition to resistance training, consuming enough protein helps boost muscle protein synthesis.

Protein and Recovery

After an injury or surgery, the body needs more protein to repair tissues. A high protein intake can speed up the recovery process.

The Risks of Insufficient or Excessive Protein Consumption

Consequences of Protein Deficiency

A protein deficiency can lead to muscle loss, weakness, fatigue and decreased immune function. This is of particular concern for the elderly and those recovering from illness.

Dangers of Excess Protein

Consuming too much protein can put strain on the kidneys and lead to digestive problems. It is important to maintain a balance and not exceed the recommended needs without medical consultation.

The Best Sources of Protein

Animal Proteins vs. Plant Proteins

Animal proteins, like those found in meat, fish and eggs, are complete and contain all the essential amino acids. Plant proteins, although often incomplete, can provide a balanced diet when consumed in combination.

Examples of High Quality Sources

High-quality sources include chicken, lean beef, fish, tofu, legumes and dairy products. These foods offer proteins of high biological value that are easily absorbed by the body.

Protein in a Vegetarian or Vegan Diet

How to Get Enough Protein Without Animal Products

Vegetarians and vegans can get enough protein by including a variety of plant-based sources like beans, lentils, quinoa and soy in their diet.

Examples of Meals Rich in Plant Protein

A bowl of quinoa with black beans and corn, a chickpea salad, or a tofu smoothie are all examples of meals rich in plant-based protein.

Proteins and Specific Diets

Ketogenic Diet and Protein

In a ketogenic diet, protein is moderated to avoid going out of ketosis mode. Fatty protein sources like salmon and avocado are often favored.

Paleo Diet and Protein

The paleo diet emphasizes quality animal proteins, such as lean meat and fish, while avoiding processed products.

Mediterranean Diet and Protein

The Mediterranean diet incorporates protein from fish, poultry and legumes, while emphasizing healthy fats like olive oil.

How Much Protein Should I Eat in a Meal?

Distribution of Proteins Throughout the Day

Spreading protein intake throughout the day can help maximize muscle protein synthesis. Aiming for 20 to 30 grams per meal is a good strategy.

Impact of Meal Frequency on Protein Synthesis

Eating protein-rich meals regularly throughout the day is more beneficial than consuming a large amount at one time. This helps maintain a constant flow of amino acids for muscle repair and growth.

Myths and Facts about Protein

Debunking Common Myths

Many believe that high protein consumption is bad for the kidneys or leads to weight gain. In reality, moderate, balanced consumption is generally safe and beneficial for most people.

Scientific Facts on Protein Consumption

Research shows that higher protein intakes can help with weight management, muscle health and athletic performance. However, it is crucial to adjust your consumption according to your individual needs.

Protein Consumption FAQs

How Much Protein for a Weight Loss Diet?

For weight loss, a higher protein intake, around 1.2 to 1.6 grams per kilogram of body weight, can help preserve muscle mass and increase satiety.

Are Protein Supplements Safe?

Yes, protein supplements are generally safe when used appropriately. However, it is always best to get your nutrients from whole food sources when possible.

What is the Best Source of Protein?

There is no single "best" source; it depends on your dietary preferences and nutritional needs. Both animal and plant proteins can be excellent, especially when consumed as part of a balanced diet.

How Much Protein Can You Get in One Meal?

The body can absorb and use protein efficiently at different levels for each individual, but consuming 20 to 30 grams per meal is often optimal for protein synthesis.

Protein and Kidney Health: What Does Science Say?

For most people, moderate protein intake is not harmful to the kidneys. However, those with pre-existing kidney diseases should consult a doctor before increasing their protein intake.

Proteins and food supplements

Proteins and Food Supplements: The Addict Sport Nutrition Offer

At Addict Sport Nutrition , we understand the importance of protein in supporting your fitness and wellness goals. This is why we offer a wide range of protein supplements suitable for all needs. Whether you are looking to improve your post-workout recovery, increase muscle mass, or simply enrich your diet, our products are designed to provide you with high-quality protein that is easily assimilated by the body.

Our protein powders, available in various flavors and formulations, are ideal for athletes, dieters and those looking to optimize their daily nutrition. Explore our selection and find the perfect complement to achieve your goals with efficiency and pleasure.


Protein is essential for many aspects of our health. Whether you're looking to lose weight, gain muscle, or simply maintain a balanced diet, understanding your protein needs is crucial. Remember to consult a health professional for personalized advice and to favor a balanced approach in your daily protein consumption.